Speed tweaks

Merge branch 'LPC4078_DevUpd' of https://github.com/InsanityAutomation/Marlin into LPC4078_DevUpd
Update Configuration_adv.h
2024-06-03 08:19:46 -04:00 · 2024-05-29 12:21:31 -04:00 · 2024-05-29 12:21:14 -04:00 · 2024-05-29 12:21:04 -04:00 · 2024-05-28 14:10:47 -04:00 · 2024-05-28 14:10:46 -04:00
379 changed files with 17752 additions and 9706 deletions
@@ -1,9 +1,9 @@
 #
-# test-builds.yml
+# ci-build-tests.yml
 # Do test builds to catch compile errors
 #

-name: CI
+name: CI - Build Tests

 on:
  pull_request:
@@ -14,6 +14,8 @@ on:
    - config/**
    - data/**
    - docs/**
+    - test/**
+    - Marlin/tests/**
    - '**/*.md'
  push:
    branches:
@@ -23,11 +25,13 @@ on:
    - config/**
    - data/**
    - docs/**
+    - test/**
+    - Marlin/tests/**
    - '**/*.md'

 jobs:
  test_builds:
-    name: Run All Tests
+    name: Build Test
    if: github.repository == 'MarlinFirmware/Marlin'

    runs-on: ubuntu-latest
@@ -0,0 +1,73 @@
+#
+# ci-unit-tests.yml
+# Build and execute unit tests to catch functional issues in code
+#
+
+name: CI - Unit Tests
+
+on:
+  pull_request:
+    branches:
+    - bugfix-2.1.x
+    # Cannot be enabled on 2.1.x until it contains the unit test framework
+    #- 2.1.x
+    paths-ignore:
+    - config/**
+    - data/**
+    - docs/**
+    - '**/*.md'
+  push:
+    branches:
+    - bugfix-2.1.x
+    # Cannot be enabled on 2.1.x until it contains the unit test framework
+    #- 2.1.x
+    paths-ignore:
+    - config/**
+    - data/**
+    - docs/**
+    - '**/*.md'
+
+jobs:
+  # This runs all unit tests as a single job. While it should be possible to break this up into
+  # multiple jobs, they currently run quickly and finish long before the compilation tests.
+  run_unit_tests:
+    name: Unit Test
+    # These tests will only be able to run on the bugfix-2.1.x branch, until the next release
+    # pulls them into additional branches.
+    if: github.repository == 'MarlinFirmware/Marlin'
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out the PR
+      uses: actions/checkout@v4
+
+    - name: Cache pip
+      uses: actions/cache@v4
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+
+    - name: Cache PlatformIO
+      uses: actions/cache@v4
+      with:
+        path: ~/.platformio
+        key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
+
+    - name: Select Python 3.9
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.9'
+        architecture: 'x64'
+
+    - name: Install PlatformIO
+      run: |
+        pip install -U platformio
+        pio upgrade --dev
+        pio pkg update --global
+
+    - name: Run All Unit Tests
+      run: |
+        make unit-test-all-local
@@ -0,0 +1,51 @@
+#
+# ci-validate-pins.yml
+# Validate that all of the pins files are unchanged by pinsformat.py
+#
+
+name: CI - Validate Pins Files
+
+on:
+  pull_request:
+    branches:
+    - bugfix-2.1.x
+    # Cannot be enabled on 2.1.x until it contains the unit test framework
+    #- 2.1.x
+    paths:
+    - 'Marlin/src/pins/*/**'
+  push:
+    branches:
+    - bugfix-2.1.x
+    # Cannot be enabled on 2.1.x until it contains the unit test framework
+    #- 2.1.x
+    paths:
+    - 'Marlin/src/pins/*/**'
+
+jobs:
+  validate_pins_files:
+    name: Validate Pins Files
+    if: github.repository == 'MarlinFirmware/Marlin'
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out the PR
+      uses: actions/checkout@v4
+
+    - name: Cache pip
+      uses: actions/cache@v4
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+
+    - name: Select Python 3.9
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.9'
+        architecture: 'x64'
+
+    - name: Validate all pins files
+      run: |
+        make validate-pins -j
@@ -2,17 +2,23 @@ SCRIPTS_DIR := buildroot/share/scripts
 CONTAINER_RT_BIN := docker
 CONTAINER_RT_OPTS := --rm -v $(PWD):/code -v platformio-cache:/root/.platformio
 CONTAINER_IMAGE := marlin-dev
+UNIT_TEST_CONFIG ?= default

 help:
 	@echo "Tasks for local development:"
 	@echo "make marlin                    : Build marlin for the configured board"
-	@echo "make format-pins               : Reformat all pins files"
+	@echo "make format-pins -j            : Reformat all pins files (-j for parallel execution)"
+	@echo "make validate-pins -j          : Validate all pins files, fails if any require reformatting"
 	@echo "make tests-single-ci           : Run a single test from inside the CI"
 	@echo "make tests-single-local        : Run a single test locally"
 	@echo "make tests-single-local-docker : Run a single test locally, using docker"
 	@echo "make tests-all-local           : Run all tests locally"
 	@echo "make tests-all-local-docker    : Run all tests locally, using docker"
-	@echo "make setup-local-docker        : Build the local docker image"
+	@echo "make unit-test-single-local    : Run unit tests for a single config locally"
+	@echo "make unit-test-single-local-docker : Run unit tests for a single config locally, using docker"
+	@echo "make unit-test-all-local      : Run all code tests locally"
+	@echo "make unit-test-all-local-docker : Run all code tests locally, using docker"
+	@echo "make setup-local-docker        : Setup local docker using buildx"
 	@echo ""
 	@echo "Options for testing:"
 	@echo "  TEST_TARGET          Set when running tests-single-*, to select the"
@@ -22,6 +28,9 @@ help:
 	@echo "                       run on GitHub CI"
 	@echo "  ONLY_TEST            Limit tests to only those that contain this, or"
 	@echo "                       the index of the test (1-based)"
+	@echo "  UNIT_TEST_CONFIG     Set the name of the config from the test folder, without"
+	@echo "                       the leading number. Default is 'default'". Used with the
+	@echo "                       unit-test-single-* tasks"
 	@echo "  VERBOSE_PLATFORMIO   If you want the full PIO output, set any value"
 	@echo "  GIT_RESET_HARD       Used by CI: reset all local changes. WARNING:"
 	@echo "                       THIS WILL UNDO ANY CHANGES YOU'VE MADE!"
@@ -43,23 +52,53 @@ tests-single-local:
 tests-single-local-docker:
 	@if ! test -n "$(TEST_TARGET)" ; then echo "***ERROR*** Set TEST_TARGET=<your-module> or use make tests-all-local-docker" ; return 1; fi
 	@if ! $(CONTAINER_RT_BIN) images -q $(CONTAINER_IMAGE) > /dev/null ; then $(MAKE) setup-local-docker ; fi
-	$(CONTAINER_RT_BIN) run $(CONTAINER_RT_OPTS) $(CONTAINER_IMAGE) $(MAKE) tests-single-local TEST_TARGET=$(TEST_TARGET) VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) GIT_RESET_HARD=$(GIT_RESET_HARD) ONLY_TEST="$(ONLY_TEST)"
+	$(CONTAINER_RT_BIN) run $(CONTAINER_RT_OPTS) $(CONTAINER_IMAGE) make tests-single-local TEST_TARGET=$(TEST_TARGET) VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) GIT_RESET_HARD=$(GIT_RESET_HARD) ONLY_TEST="$(ONLY_TEST)"

 tests-all-local:
+	@python -c "import yaml" 2>/dev/null || (echo 'pyyaml module is not installed. Install it with "python -m pip install pyyaml"' && exit 1)
 	export PATH="./buildroot/bin/:./buildroot/tests/:${PATH}" \
 	  && export VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) \
-	  && for TEST_TARGET in $$($(SCRIPTS_DIR)/get_test_targets.py) ; do echo "Running tests for $$TEST_TARGET" ; run_tests . $$TEST_TARGET ; done
+	  && for TEST_TARGET in $$(python $(SCRIPTS_DIR)/get_test_targets.py) ; do \
+	    if [ "$$TEST_TARGET" = "linux_native" ] && [ "$$(uname)" = "Darwin" ]; then \
+	      echo "Skipping tests for $$TEST_TARGET on macOS" ; \
+	      continue ; \
+	    fi ; \
+	    echo "Running tests for $$TEST_TARGET" ; \
+	    run_tests . $$TEST_TARGET || exit 1 ; \
+	    sleep 5; \
+	  done

 tests-all-local-docker:
 	@if ! $(CONTAINER_RT_BIN) images -q $(CONTAINER_IMAGE) > /dev/null ; then $(MAKE) setup-local-docker ; fi
-	$(CONTAINER_RT_BIN) run $(CONTAINER_RT_OPTS) $(CONTAINER_IMAGE) $(MAKE) tests-all-local VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) GIT_RESET_HARD=$(GIT_RESET_HARD)
+	$(CONTAINER_RT_BIN) run $(CONTAINER_RT_OPTS) $(CONTAINER_IMAGE) make tests-all-local VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) GIT_RESET_HARD=$(GIT_RESET_HARD)
+
+unit-test-single-local:
+	platformio run -t marlin_$(UNIT_TEST_CONFIG) -e linux_native_test
+
+unit-test-single-local-docker:
+	@if ! $(CONTAINER_RT_BIN) images -q $(CONTAINER_IMAGE) > /dev/null ; then $(MAKE) setup-local-docker ; fi
+	$(CONTAINER_RT_BIN) run $(CONTAINER_RT_OPTS)  $(CONTAINER_IMAGE) make unit-test-single-local UNIT_TEST_CONFIG=$(UNIT_TEST_CONFIG)
+
+unit-test-all-local:
+	platformio run -t test-marlin -e linux_native_test
+
+unit-test-all-local-docker:
+	@if ! $(CONTAINER_RT_BIN) images -q $(CONTAINER_IMAGE) > /dev/null ; then $(MAKE) setup-local-docker ; fi
+	$(CONTAINER_RT_BIN) run $(CONTAINER_RT_OPTS)  $(CONTAINER_IMAGE) make unit-test-all-local

 setup-local-docker:
-	$(CONTAINER_RT_BIN) build -t $(CONTAINER_IMAGE) -f docker/Dockerfile .
+	$(CONTAINER_RT_BIN) buildx build -t $(CONTAINER_IMAGE) -f docker/Dockerfile .

 PINS := $(shell find Marlin/src/pins -mindepth 2 -name '*.h')

+.PHONY: $(PINS) format-pins validate-pins
+
 $(PINS): %:
-	@echo "Formatting $@" && node $(SCRIPTS_DIR)/pinsformat.js $@
+	@echo "Formatting $@"
+	@python $(SCRIPTS_DIR)/pinsformat.py $< $@

 format-pins: $(PINS)
+
+validate-pins: format-pins
+	@echo "Validating pins files"
+	@git diff --exit-code || (git status && echo "\nError: Pins files are not formatted correctly. Run \"make format-pins\" to fix.\n" && exit 1)
@@ -304,8 +304,8 @@
 * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
 */
 #if ENABLED(THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 15     // (°C)
+  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)

  #define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
  #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -327,7 +327,7 @@
   * and/or decrease WATCH_TEMP_INCREASE. WATCH_TEMP_INCREASE should not be set
   * below 2.
   */
-  #define WATCH_TEMP_PERIOD  60               // (seconds)
+  #define WATCH_TEMP_PERIOD  40               // (seconds)
  #define WATCH_TEMP_INCREASE 2               // (°C)
 #endif

@@ -335,13 +335,13 @@
 * Thermal Protection parameters for the bed are just as above for hotends.
 */
 #if ENABLED(THERMAL_PROTECTION_BED)
-  #define THERMAL_PROTECTION_BED_PERIOD        120 // (seconds)
+  #define THERMAL_PROTECTION_BED_PERIOD        90 // (seconds)
  #define THERMAL_PROTECTION_BED_HYSTERESIS     2 // (°C)

  /**
   * As described above, except for the bed (M140/M190/M303).
   */
-  #define WATCH_BED_TEMP_PERIOD                120 // (seconds)
+  #define WATCH_BED_TEMP_PERIOD                60 // (seconds)
  #define WATCH_BED_TEMP_INCREASE               2 // (°C)
 #endif

@@ -459,7 +459,7 @@
      #define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0

    #else
-      #define PID_FAN_SCALING_LIN_FACTOR (0)             // Power-loss due to cooling = Kf * (fan_speed)
+      #define PID_FAN_SCALING_LIN_FACTOR (0)             // Power loss due to cooling = Kf * (fan_speed)
      #define DEFAULT_Kf 10                              // A constant value added to the PID-tuner
      #define PID_FAN_SCALING_MIN_SPEED 10               // Minimum fan speed at which to enable PID_FAN_SCALING
    #endif
@@ -549,8 +549,8 @@
 */
 #define HOTEND_IDLE_TIMEOUT
 #if ENABLED(HOTEND_IDLE_TIMEOUT)
-  #define HOTEND_IDLE_TIMEOUT_SEC (15*60)    // (seconds) Time without extruder movement to trigger protection
-  #define HOTEND_IDLE_MIN_TRIGGER   180     // (°C) Minimum temperature to enable hotend protection
+  #define HOTEND_IDLE_TIMEOUT_SEC (30*60)    // (seconds) Time without extruder movement to trigger protection
+  #define HOTEND_IDLE_MIN_TRIGGER   170     // (°C) Minimum temperature to enable hotend protection
  #define HOTEND_IDLE_NOZZLE_TARGET   0     // (°C) Safe temperature for the nozzle after timeout
  #define HOTEND_IDLE_BED_TARGET      0     // (°C) Safe temperature for the bed after timeout
 #endif
@@ -603,7 +603,7 @@
 * (Does not work on Sanguinololu with FAN_SOFT_PWM.)
 */
 #define FAN_KICKSTART_TIME  100  // (ms)
-//#define FAN_KICKSTART_POWER 180  // 64-255
+#define FAN_KICKSTART_POWER 180  // 64-255

 // Some coolers may require a non-zero "off" state.
 //#define FAN_OFF_PWM  1
@@ -681,17 +681,8 @@
 * Multiple extruders can be assigned to the same pin in which case
 * the fan will turn on when any selected extruder is above the threshold.
 */
-#if ENABLED(SKR12Pro, TREX3)
-  #define E0_AUTO_FAN_PIN  FAN2_PIN
-  #define E1_AUTO_FAN_PIN  FAN2_PIN
-#elif ENABLED(TREX3)
-  #define E0_AUTO_FAN_PIN  6
-  #define E1_AUTO_FAN_PIN  45
-#else
-  #define E0_AUTO_FAN_PIN -1
-  #define E1_AUTO_FAN_PIN -1
-#endif
-
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
@@ -757,17 +748,15 @@
 * @section caselight
 * M355 Case Light on-off / brightness
 */
-#define CASE_LIGHT_ENABLE
+//#define CASE_LIGHT_ENABLE
 #if ENABLED(CASE_LIGHT_ENABLE)
-  #if ENABLED(SKR12Pro)
-    #define CASE_LIGHT_PIN HEATER_2_PIN                  // Override the default pin if needed
-  #endif
+  //#define CASE_LIGHT_PIN 4                  // Override the default pin if needed
  #define INVERT_CASE_LIGHT false             // Set true if Case Light is ON when pin is LOW
  #define CASE_LIGHT_DEFAULT_ON true          // Set default power-up state on
-  #define CASE_LIGHT_DEFAULT_BRIGHTNESS 255   // Set default power-up brightness (0-255, requires PWM pin)
+  #define CASE_LIGHT_DEFAULT_BRIGHTNESS 105   // Set default power-up brightness (0-255, requires PWM pin)
  //#define CASE_LIGHT_NO_BRIGHTNESS          // Disable brightness control. Enable for non-PWM lighting.
  //#define CASE_LIGHT_MAX_PWM 128            // Limit PWM duty cycle (0-255)
-  #define CASE_LIGHT_MENU                   // Add Case Light options to the LCD menu
+  //#define CASE_LIGHT_MENU                   // Add Case Light options to the LCD menu
  #if ENABLED(NEOPIXEL_LED)
    //#define CASE_LIGHT_USE_NEOPIXEL         // Use NeoPixel LED as case light
  #endif
@@ -826,26 +815,22 @@
 *       Set the initial X offset and temperature differential with M605 S2 X[offs] R[deg] and
 *       follow with M605 S3 to initiate mirrored movement.
 */
-#define DUAL_X_CARRIAGE
+//#define DUAL_X_CARRIAGE
 #if ENABLED(DUAL_X_CARRIAGE)
  #define X1_MIN_POS X_MIN_POS    // Set to X_MIN_POS
  #define X1_MAX_POS X_BED_SIZE   // A max coordinate so the X1 carriage can't hit the parked X2 carriage
-  #define X2_MIN_POS    0        // A min coordinate so the X2 carriage can't hit the parked X1 carriage
-  #if DISABLED(TREX3) || ENABLED(TREX3_UPGRADE)
-    #define X2_MAX_POS   442        // The max position of the X2 carriage, typically also the home position
-  #else
-    #define X2_MAX_POS   446        // The max position of the X2 carriage, typically also the home position
-  #endif
+  #define X2_MIN_POS    80        // A min coordinate so the X2 carriage can't hit the parked X1 carriage
+  #define X2_MAX_POS   353        // The max position of the X2 carriage, typically also the home position
  #define X2_HOME_POS X2_MAX_POS  // Default X2 home position. Set to X2_MAX_POS.
                                  // NOTE: For Dual X Carriage use M218 T1 Xn to override the X2_HOME_POS.
                                  // This allows recalibration of endstops distance without a rebuild.
                                  // Remember to set the second extruder's X-offset to 0 in your slicer.

-  // This is the default power-up mode which can be later using M605.
+  // This is the default power-up mode which can be changed later using M605 S<mode>.
  #define DEFAULT_DUAL_X_CARRIAGE_MODE DXC_AUTO_PARK_MODE

  // Default x offset in duplication mode (typically set to half print bed width)
-  #define DEFAULT_DUPLICATION_X_OFFSET 200
+  #define DEFAULT_DUPLICATION_X_OFFSET 100

  // Default action to execute following M605 mode change commands. Typically G28X to apply new mode.
  //#define EVENT_GCODE_IDEX_AFTER_MODECHANGE "G28X"
@@ -1018,7 +1003,7 @@
   *
   * Set the default state here, change with 'M401 S' or UI, use M500 to save, M502 to reset.
   */
-  #define BLTOUCH_HS_MODE true
+  //#define BLTOUCH_HS_MODE true

  #ifdef BLTOUCH_HS_MODE
    // The probe Z offset (M851 Z) is the height at which the probe triggers.
@@ -1035,7 +1020,7 @@
 * Z Steppers Auto-Alignment
 * Add the G34 command to align multiple Z steppers using a bed probe.
 */
-//#define Z_STEPPER_AUTO_ALIGN
+#define Z_STEPPER_AUTO_ALIGN
 #if ENABLED(Z_STEPPER_AUTO_ALIGN)
  /**
   * Define probe X and Y positions for Z1, Z2 [, Z3 [, Z4]]
@@ -1219,14 +1204,14 @@
 //#define INPUT_SHAPING_Y
 #if ANY(INPUT_SHAPING_X, INPUT_SHAPING_Y)
  #if ENABLED(INPUT_SHAPING_X)
-    #define SHAPING_FREQ_X  40.0        // (Hz) The default dominant resonant frequency on the X axis.
-    #define SHAPING_ZETA_X   0.15       // Damping ratio of the X axis (range: 0.0 = no damping to 1.0 = critical damping).
+    #define SHAPING_FREQ_X  40          // (Hz) The default dominant resonant frequency on the X axis.
+    #define SHAPING_ZETA_X  0.15f       // Damping ratio of the X axis (range: 0.0 = no damping to 1.0 = critical damping).
  #endif
  #if ENABLED(INPUT_SHAPING_Y)
-    #define SHAPING_FREQ_Y  40.0        // (Hz) The default dominant resonant frequency on the Y axis.
-    #define SHAPING_ZETA_Y   0.15       // Damping ratio of the Y axis (range: 0.0 = no damping to 1.0 = critical damping).
+    #define SHAPING_FREQ_Y  40          // (Hz) The default dominant resonant frequency on the Y axis.
+    #define SHAPING_ZETA_Y  0.15f       // Damping ratio of the Y axis (range: 0.0 = no damping to 1.0 = critical damping).
  #endif
-  //#define SHAPING_MIN_FREQ  20.0      // (Hz) By default the minimum of the shaping frequencies. Override to affect SRAM usage.
+  //#define SHAPING_MIN_FREQ  20        // By default the minimum of the shaping frequencies. Override to affect SRAM usage.
  //#define SHAPING_MAX_STEPRATE 10000  // By default the maximum total step rate of the shaped axes. Override to affect SRAM usage.
  //#define SHAPING_MENU                // Add a menu to the LCD to set shaping parameters.
 #endif
@@ -1278,22 +1263,18 @@
 // Increase the slowdown divisor for larger buffer sizes.
 #define SLOWDOWN
 #if ENABLED(SLOWDOWN)
-  #if ENABLED(SKR12Pro)
-    #define SLOWDOWN_DIVISOR 6
-  #else
-    #define SLOWDOWN_DIVISOR 2
-  #endif
+  #define SLOWDOWN_DIVISOR 2
 #endif

 /**
 * XY Frequency limit
 * Reduce resonance by limiting the frequency of small zigzag infill moves.
 * See https://hydraraptor.blogspot.com/2010/12/frequency-limit.html
- * Use M201 F<freq> S<min%> to change limits at runtime.
+ * Use M201 F<freq> G<min%> to change limits at runtime.
 */
 //#define XY_FREQUENCY_LIMIT      10 // (Hz) Maximum frequency of small zigzag infill moves. Set with M201 F<hertz>.
 #ifdef XY_FREQUENCY_LIMIT
-  #define XY_FREQUENCY_MIN_PERCENT 5 // (%) Minimum FR percentage to apply. Set with M201 S<min%>.
+  #define XY_FREQUENCY_MIN_PERCENT 5 // (%) Minimum FR percentage to apply. Set with M201 G<min%>.
 #endif

 //
@@ -1305,7 +1286,7 @@
  // Define values for backlash distance and correction.
  // If BACKLASH_GCODE is enabled these values are the defaults.
  #define BACKLASH_DISTANCE_MM { 0, 0, 0 } // (linear=mm, rotational=°) One value for each linear axis
-  #define BACKLASH_CORRECTION    0.5       // 0.0 = no correction; 1.0 = full correction
+  #define BACKLASH_CORRECTION    0.0       // 0.0 = no correction; 1.0 = full correction

  // Add steps for motor direction changes on CORE kinematics
  //#define CORE_BACKLASH
@@ -1319,7 +1300,7 @@

  #if ENABLED(BACKLASH_GCODE)
    // Measure the Z backlash when probing (G29) and set with "M425 Z"
-    //#define MEASURE_BACKLASH_WHEN_PROBING
+    #define MEASURE_BACKLASH_WHEN_PROBING

    #if ENABLED(MEASURE_BACKLASH_WHEN_PROBING)
      // When measuring, the probe will move up to BACKLASH_MEASUREMENT_LIMIT
@@ -1345,9 +1326,7 @@
 * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
 *       ±5mm of true values for G425 to succeed.
 */
-#if ENABLED(autoCalibrationKit)
-  #define CALIBRATION_GCODE
-#endif
+//#define CALIBRATION_GCODE
 #if ENABLED(CALIBRATION_GCODE)

  //#define CALIBRATION_SCRIPT_PRE  "M117 Starting Auto-Calibration\nT0\nG28\nG12\nM117 Calibrating..."
@@ -1363,14 +1342,12 @@
  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm

-  // Uncomment to enable reporting (required for "G425 V", but consumes flash).
-  #if ENABLED(SKR12Pro)
-    #define CALIBRATION_REPORTING
-  #endif
+  // Uncomment to enable reporting (required for "G425 V", but consumes PROGMEM).
+  //#define CALIBRATION_REPORTING

  // The true location and dimension the cube/bolt/washer on the bed.
-  #define CALIBRATION_OBJECT_CENTER     { 264.0, 25.0,  12.5 } // mm
-  #define CALIBRATION_OBJECT_DIMENSIONS {  12.55,  12.55,  4.0 } // mm
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0 } // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0 } // mm

  // Comment out any sides which are unreachable by the probe. For best
  // auto-calibration results, all sides must be reachable.
@@ -1394,16 +1371,12 @@

  // Probing at the exact top center only works if the center is flat. If
  // probing on a screw head or hollow washer, probe near the edges.
-  #define CALIBRATION_MEASURE_AT_TOP_EDGES
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES

  // Define the pin to read during calibration
  #ifndef CALIBRATION_PIN
-    #if ENABLED(SKR12Pro)
-      #define CALIBRATION_PIN Z_MAX
-    #else
-      #define CALIBRATION_PIN 58 // Override in pins.h or set to -1 to use your Z endstop
-    #endif
-    #define CALIBRATION_PIN_INVERTING true // Set to true to invert the pin
+    //#define CALIBRATION_PIN -1            // Define here to override the default pin
+    #define CALIBRATION_PIN_INVERTING false // Set to true to invert the custom pin
    //#define CALIBRATION_PIN_PULLDOWN
    #define CALIBRATION_PIN_PULLUP
  #endif
@@ -1413,7 +1386,7 @@
 * Multi-stepping sends steps in bursts to reduce MCU usage for high step-rates.
 * This allows higher feedrates than the MCU could otherwise support.
 */
-#define MULTISTEPPING_LIMIT   16  //: [1, 2, 4, 8, 16, 32, 64, 128]
+#define MULTISTEPPING_LIMIT   32  //: [1, 2, 4, 8, 16, 32, 64, 128]

 /**
 * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
@@ -1421,7 +1394,7 @@
 * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the
 * lowest stepping frequencies.
 */
-//#define ADAPTIVE_STEP_SMOOTHING
+#define ADAPTIVE_STEP_SMOOTHING

 /**
 * Custom Microstepping
@@ -1501,7 +1474,6 @@
  #if IS_ULTIPANEL
    #define MANUAL_E_MOVES_RELATIVE // Display extruder move distance rather than "position"
    #define ULTIPANEL_FEEDMULTIPLY  // Encoder sets the feedrate multiplier on the Status Screen
-    //#define ULTIPANEL_FLOWPERCENT // Encoder sets the flow percentage on the Status Screen
  #endif
 #endif

@@ -1567,7 +1539,6 @@
   * Axis moves <= 1/2 the axis length and Extruder moves <= EXTRUDE_MAXLENGTH
   * will be shown in the move submenus.
   */
-
  #define MANUAL_MOVE_DISTANCE_MM                    10, 1.0, 0.1  // (mm)
  //#define MANUAL_MOVE_DISTANCE_MM         100, 50, 10, 1.0, 0.1  // (mm)
  //#define MANUAL_MOVE_DISTANCE_MM    500, 100, 50, 10, 1.0, 0.1  // (mm)
@@ -1609,7 +1580,7 @@
      #define BOOT_MARLIN_LOGO_SMALL      // Show a smaller Marlin logo on the Boot Screen (saving lots of flash)
    #endif
    #if HAS_MARLINUI_U8GLIB
-      //#define BOOT_MARLIN_LOGO_ANIMATED // Animated Marlin logo. Costs ~3260 (or ~940) bytes of flash.
+      #define BOOT_MARLIN_LOGO_ANIMATED // Animated Marlin logo. Costs ~3260 (or ~940) bytes of flash.
    #endif
    #if ANY(HAS_MARLINUI_U8GLIB, TOUCH_UI_FTDI_EVE)
      //#define SHOW_CUSTOM_BOOTSCREEN    // Show the bitmap in Marlin/_Bootscreen.h on startup.
@@ -1628,10 +1599,10 @@
  #endif

  // The timeout to return to the status screen from sub-menus
-  //#define LCD_TIMEOUT_TO_STATUS 15000   // (ms)
+  #define LCD_TIMEOUT_TO_STATUS 15000   // (ms)

  // Scroll a longer status message into view
-  //#define STATUS_MESSAGE_SCROLLING
+  #define STATUS_MESSAGE_SCROLLING

  // Apply a timeout to low-priority status messages
  //#define STATUS_MESSAGE_TIMEOUT_SEC 30 // (seconds)
@@ -1772,26 +1743,21 @@
   */
  //#define POWER_LOSS_RECOVERY
  #if ENABLED(POWER_LOSS_RECOVERY)
-    #define PLR_ENABLED_DEFAULT       false // Power-Loss Recovery enabled by default. (Set with 'M413 Sn' & M500)
+    #define PLR_ENABLED_DEFAULT       false // Power Loss Recovery enabled by default. (Set with 'M413 Sn' & M500)
    //#define PLR_BED_THRESHOLD BED_MAXTEMP // (°C) Skip user confirmation at or above this bed temperature (0 to disable)
-
-    //#define POWER_LOSS_PIN             44 // Pin to detect power-loss. Set to -1 to disable default pin on boards without module, or comment to use board default.
-    //#define POWER_LOSS_STATE         HIGH // State of pin indicating power-loss
+    //#define BACKUP_POWER_SUPPLY           // Backup power / UPS to move the steppers on power loss
+    //#define POWER_LOSS_ZRAISE           2 // (mm) Z axis raise on resume (on power loss with UPS)
+    //#define POWER_LOSS_PIN             44 // Pin to detect power loss. Set to -1 to disable default pin on boards without module.
+    //#define POWER_LOSS_STATE         HIGH // State of pin indicating power loss
    //#define POWER_LOSS_PULLUP             // Set pullup / pulldown as appropriate for your sensor
    //#define POWER_LOSS_PULLDOWN
-
-    //#define POWER_LOSS_ZRAISE        2    // (mm) Z axis raise on resume (on power-loss with UPS)
-    //#define POWER_LOSS_PURGE_LEN    20    // (mm) Length of filament to purge on resume
+    //#define POWER_LOSS_PURGE_LEN       20 // (mm) Length of filament to purge on resume
+    //#define POWER_LOSS_RETRACT_LEN     10 // (mm) Length of filament to retract on fail. Requires backup power.

    // Without a POWER_LOSS_PIN the following option helps reduce wear on the SD card,
    // especially with "vase mode" printing. Set too high and vases cannot be continued.
    #define POWER_LOSS_MIN_Z_CHANGE    0.05 // (mm) Minimum Z change before saving power-loss data

-    //#define BACKUP_POWER_SUPPLY           // Backup power / UPS to move the steppers on power-loss
-    #if ENABLED(BACKUP_POWER_SUPPLY)
-      //#define POWER_LOSS_RETRACT_LEN   10 // (mm) Length of filament to retract on fail
-    #endif
-
    // Enable if Z homing is needed for proper recovery. 99.9% of the time this should be disabled!
    //#define POWER_LOSS_RECOVER_ZHOME
    #if ENABLED(POWER_LOSS_RECOVER_ZHOME)
@@ -1947,9 +1913,7 @@
   *
   * :[ 'LCD', 'ONBOARD', 'CUSTOM_CABLE' ]
   */
-  #if ENABLED(SKR12Pro)
-    #define SDCARD_CONNECTION ONBOARD
-  #endif
+  #define SDCARD_CONNECTION ONBOARD

  // Enable if SD detect is rendered useless (e.g., by using an SD extender)
  //#define NO_SD_DETECT
@@ -1999,6 +1963,17 @@
  // Western only. Not available for Cyrillic, Kana, Turkish, Greek, or Chinese.
  //#define USE_SMALL_INFOFONT

+  /**
+   * Graphical Display Sleep
+   *
+   * The U8G library provides sleep / wake functions for SH1106, SSD1306,
+   * SSD1309, and some other DOGM displays.
+   * Enable this option to save energy and prevent OLED pixel burn-in.
+   * Adds the menu item Configuration > LCD Timeout (m) to set a wait period
+   * from 0 (disabled) to 99 minutes.
+   */
+  //#define DISPLAY_SLEEP_MINUTES 2  // (minutes) Timeout before turning off the screen. Set with M255 S.
+
  /**
   * ST7920-based LCDs can emulate a 16 x 4 character display using
   * the ST7920 character-generator for very fast screen updates.
@@ -2247,20 +2222,13 @@
  //#define TFT_BTOKMENU_COLOR 0x145F // 00010 100010 11111 Cyan
 #endif

-/**
- * Display Sleep
- * Enable this option to save energy and prevent OLED pixel burn-in.
- */
-//#define DISPLAY_SLEEP_MINUTES 2       // (minutes) Timeout before turning off the screen
-
-/**
- * LCD Backlight Timeout
- * Requires a display with a controllable backlight
- */
+//
+// LCD Backlight Timeout
+// Requires a display with a controllable backlight
+//
 //#define LCD_BACKLIGHT_TIMEOUT_MINS 1  // (minutes) Timeout before turning off the backlight
-
 #if defined(DISPLAY_SLEEP_MINUTES) || defined(LCD_BACKLIGHT_TIMEOUT_MINS)
-  #define EDITABLE_DISPLAY_TIMEOUT      // Edit sleep / backlight timeout with M255 S<minutes> and a menu item
+  #define EDITABLE_DISPLAY_TIMEOUT      // Edit timeout with M255 S<minutes> and a menu item
 #endif

 //
@@ -2303,7 +2271,7 @@
  //#define BABYSTEP_XY                     // Also enable X/Y Babystepping. Not supported on DELTA!
  //#define BABYSTEP_INVERT_Z               // Enable if Z babysteps should go the other way
  //#define BABYSTEP_MILLIMETER_UNITS       // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
-  #define BABYSTEP_MULTIPLICATOR_Z  20       // (steps or mm) Steps or millimeter distance for each Z babystep
+  #define BABYSTEP_MULTIPLICATOR_Z  25       // (steps or mm) Steps or millimeter distance for each Z babystep
  #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep

  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
@@ -2320,8 +2288,8 @@

  #define BABYSTEP_ZPROBE_OFFSET          // Combine M851 Z and Babystepping
  #if ENABLED(BABYSTEP_ZPROBE_OFFSET)
-    #define BABYSTEP_HOTEND_Z_OFFSET      // For multiple hotends, babystep relative Z offsets
-    #define BABYSTEP_ZPROBE_GFX_OVERLAY   // Enable graphical overlay on Z-offset editor
+    //#define BABYSTEP_HOTEND_Z_OFFSET      // For multiple hotends, babystep relative Z offsets
+    //#define BABYSTEP_GFX_OVERLAY          // Enable graphical overlay on Z-offset editor
  #endif
 #endif

@@ -2345,9 +2313,9 @@
 #define LIN_ADVANCE
 #if ENABLED(LIN_ADVANCE)
  #if ENABLED(DISTINCT_E_FACTORS)
-    #define ADVANCE_K { 0.0 }    // (mm) Compression length per 1mm/s extruder speed, per extruder
+    #define ADVANCE_K { 0.22 }    // (mm) Compression length per 1mm/s extruder speed, per extruder
  #else
-    #define ADVANCE_K 0.0        // (mm) Compression length applying to all extruders
+    #define ADVANCE_K 0.22        // (mm) Compression length applying to all extruders
  #endif
  //#define ADVANCE_K_EXTRA       // Add a second linear advance constant, configurable with M900 L.
  //#define LA_DEBUG              // Print debug information to serial during operation. Disable for production use.
@@ -2417,10 +2385,10 @@

 #if ANY(MESH_BED_LEVELING, AUTO_BED_LEVELING_UBL)
  // Override the mesh area if the automatic (max) area is too large
-  #define MESH_MIN_X X_MIN_POS + MESH_INSET
-  #define MESH_MIN_Y Y_MIN_POS + MESH_INSET
-  #define MESH_MAX_X X_MAX_POS - MESH_INSET
-  #define MESH_MAX_Y Y_MAX_POS - MESH_INSET
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 #endif

 #if ALL(AUTO_BED_LEVELING_UBL, EEPROM_SETTINGS)
@@ -2535,7 +2503,7 @@
 #endif

 // G5 Bézier Curve Support with XYZE destination and IJPQ offsets
-//#define BEZIER_CURVE_SUPPORT        // Requires ~2666 bytes
+#define BEZIER_CURVE_SUPPORT        // Requires ~2666 bytes

 #if ANY(ARC_SUPPORT, BEZIER_CURVE_SUPPORT)
  //#define CNC_WORKSPACE_PLANES      // Allow G2/G3/G5 to operate in XY, ZX, or YZ planes
@@ -2596,7 +2564,7 @@
 *
 * Override the default value based on the driver type set in Configuration.h.
 */
-//#define MINIMUM_STEPPER_PULSE 2
+//#define MINIMUM_STEPPER_PULSE 5

 /**
 * Maximum stepping rate (in Hz) the stepper driver allows
@@ -2610,7 +2578,7 @@
 *
 * Override the default value based on the driver type set in Configuration.h.
 */
-//#define MAXIMUM_STEPPER_RATE 250000
+//#define MAXIMUM_STEPPER_RATE 150000

 // @section temperature

@@ -2627,20 +2595,16 @@
 #if ALL(HAS_MEDIA, DIRECT_STEPPING)
  #define BLOCK_BUFFER_SIZE  8
 #elif HAS_MEDIA
-  #define BLOCK_BUFFER_SIZE 16
+  #define BLOCK_BUFFER_SIZE 32
 #else
-  #define BLOCK_BUFFER_SIZE 16 // maximize block buffer
+  #define BLOCK_BUFFER_SIZE 32
 #endif

 // @section serial

 // The ASCII buffer for serial input
 #define MAX_CMD_SIZE 96
-#if ENABLED(SKR12Pro)
-  #define BUFSIZE 16
-#else
-  #define BUFSIZE 4
-#endif
+#define BUFSIZE 16

 // Transmission to Host Buffer Size
 // To save 386 bytes of flash (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
@@ -2772,9 +2736,7 @@
 *
 * Note that M207 / M208 / M209 settings are saved to EEPROM.
 */
-#if ANY(ABL_Bilinear, SKR12Pro)
-  #define FWRETRACT
-#endif
+//#define FWRETRACT
 #if ENABLED(FWRETRACT)
  #define FWRETRACT_AUTORETRACT             // Override slicer retractions
  #if ENABLED(FWRETRACT_AUTORETRACT)
@@ -2804,9 +2766,9 @@
  // Z raise distance for tool-change, as needed for some extruders
  #define TOOLCHANGE_ZRAISE                 2 // (mm)
  //#define TOOLCHANGE_ZRAISE_BEFORE_RETRACT  // Apply raise before swap retraction (if enabled)
-  #define TOOLCHANGE_NO_RETURN              // Never return to previous position on tool-change
+  //#define TOOLCHANGE_NO_RETURN              // Never return to previous position on tool-change
  #if ENABLED(TOOLCHANGE_NO_RETURN)
-    #define EVENT_GCODE_AFTER_TOOLCHANGE "G12X"   // Extra G-code to run after tool-change
+    //#define EVENT_GCODE_AFTER_TOOLCHANGE "G12X"   // Extra G-code to run after tool-change
  #endif

  /**
@@ -2835,11 +2797,11 @@
   * Retract and prime filament on tool-change to reduce
   * ooze and stringing and to get cleaner transitions.
   */
-  #define TOOLCHANGE_FILAMENT_SWAP
+  //#define TOOLCHANGE_FILAMENT_SWAP
  #if ENABLED(TOOLCHANGE_FILAMENT_SWAP)
    // Load / Unload
-    #define TOOLCHANGE_FS_LENGTH              4  // (mm) Load / Unload length
-    #define TOOLCHANGE_FS_EXTRA_RESUME_LENGTH  2  // (mm) Extra length for better restart. Adjust with LCD or M217 B.
+    #define TOOLCHANGE_FS_LENGTH              12  // (mm) Load / Unload length
+    #define TOOLCHANGE_FS_EXTRA_RESUME_LENGTH  0  // (mm) Extra length for better restart. Adjust with LCD or M217 B.
    #define TOOLCHANGE_FS_RETRACT_SPEED   (50*60) // (mm/min) (Unloading)
    #define TOOLCHANGE_FS_UNRETRACT_SPEED (25*60) // (mm/min) (On SINGLENOZZLE or Bowden loading must be slowed down)

@@ -2925,45 +2887,45 @@
 #define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
  #define PAUSE_PARK_RETRACT_FEEDRATE         60  // (mm/s) Initial retract feedrate.
-  #define PAUSE_PARK_RETRACT_LENGTH            4  // (mm) Initial retract.
+  #define PAUSE_PARK_RETRACT_LENGTH            2  // (mm) Initial retract.
                                                  // This short retract is done immediately, before parking the nozzle.
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE     41  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE     10  // (mm/s) Unload filament feedrate. This can be pretty fast.
  #define FILAMENT_CHANGE_UNLOAD_ACCEL        25  // (mm/s^2) Lower acceleration may allow a faster feedrate.
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH      70  // (mm) The length of filament for a complete unload.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH      100  // (mm) The length of filament for a complete unload.
                                                  //   For Bowden, the full length of the tube and nozzle.
                                                  //   For direct drive, the full length of the nozzle.
                                                  //   Set to 0 for manual unloading.
  #define FILAMENT_CHANGE_SLOW_LOAD_FEEDRATE   6  // (mm/s) Slow move when starting load.
  #define FILAMENT_CHANGE_SLOW_LOAD_LENGTH     0  // (mm) Slow length, to allow time to insert material.
                                                  // 0 to disable start loading and skip to fast load only
-  #define FILAMENT_CHANGE_FAST_LOAD_FEEDRATE  30  // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_FAST_LOAD_FEEDRATE   6  // (mm/s) Load filament feedrate. This can be pretty fast.
  #define FILAMENT_CHANGE_FAST_LOAD_ACCEL     25  // (mm/s^2) Lower acceleration may allow a faster feedrate.
-  #define FILAMENT_CHANGE_FAST_LOAD_LENGTH    50  // (mm) Load length of filament, from extruder gear to nozzle.
+  #define FILAMENT_CHANGE_FAST_LOAD_LENGTH     0  // (mm) Load length of filament, from extruder gear to nozzle.
                                                  //   For Bowden, the full length of the tube and nozzle.
                                                  //   For direct drive, the full length of the nozzle.
  //#define ADVANCED_PAUSE_CONTINUOUS_PURGE       // Purge continuously up to the purge length until interrupted.
  #define ADVANCED_PAUSE_PURGE_FEEDRATE        3  // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
-  #define ADVANCED_PAUSE_PURGE_LENGTH         20  // (mm) Length to extrude after loading.
+  #define ADVANCED_PAUSE_PURGE_LENGTH         50  // (mm) Length to extrude after loading.
                                                  //   Set to 0 for manual extrusion.
                                                  //   Filament can be extruded repeatedly from the Filament Change menu
                                                  //   until extrusion is consistent, and to purge old filament.
-  #define ADVANCED_PAUSE_RESUME_PRIME          2  // (mm) Extra distance to prime nozzle after returning from park.
-  #define ADVANCED_PAUSE_FANS_PAUSE             // Turn off print-cooling fans while the machine is paused.
+  #define ADVANCED_PAUSE_RESUME_PRIME          0  // (mm) Extra distance to prime nozzle after returning from park.
+  //#define ADVANCED_PAUSE_FANS_PAUSE             // Turn off print-cooling fans while the machine is paused.

                                                  // Filament Unload does a Retract, Delay, and Purge first:
-  #define FILAMENT_UNLOAD_PURGE_RETRACT       4  // (mm) Unload initial retract length.
-  #define FILAMENT_UNLOAD_PURGE_DELAY       2000  // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_RETRACT       13  // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_PURGE_DELAY       5000  // (ms) Delay for the filament to cool after retract.
  #define FILAMENT_UNLOAD_PURGE_LENGTH         8  // (mm) An unretract is done, then this length is purged.
  #define FILAMENT_UNLOAD_PURGE_FEEDRATE      25  // (mm/s) feedrate to purge before unload

  #define PAUSE_PARK_NOZZLE_TIMEOUT           45  // (seconds) Time limit before the nozzle is turned off for safety.
-  #define FILAMENT_CHANGE_ALERT_BEEPS          1  // Number of alert beeps to play when a response is needed.
+  #define FILAMENT_CHANGE_ALERT_BEEPS         10  // Number of alert beeps to play when a response is needed.
  #define PAUSE_PARK_NO_STEPPER_TIMEOUT           // Enable for XYZ steppers to stay powered on during filament change.
  //#define FILAMENT_CHANGE_RESUME_ON_INSERT      // Automatically continue / load filament when runout sensor is triggered again.
  //#define PAUSE_REHEAT_FAST_RESUME              // Reduce number of waits by not prompting again post-timeout before continuing.

  #define PARK_HEAD_ON_PAUSE                    // Park the nozzle during pause and filament change.
-  #define HOME_BEFORE_FILAMENT_CHANGE           // If needed, home before parking for filament change
+  //#define HOME_BEFORE_FILAMENT_CHANGE           // If needed, home before parking for filament change

  #define FILAMENT_LOAD_UNLOAD_GCODES           // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
  #define FILAMENT_UNLOAD_ALL_EXTRUDERS         // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
@@ -2988,14 +2950,17 @@
 *    Some boards have simple jumper connections! See your board's documentation.
 *  - These drivers can also be used with Hardware Serial.
 *
+ * The TMC26XStepper library is required for TMC26X stepper drivers.
+ *   https://github.com/MarlinFirmware/TMC26XStepper
+ *
 * The TMCStepper library is required for other TMC stepper drivers.
 *   https://github.com/teemuatlut/TMCStepper
 *
 * @section tmc/config
 */
-#if HAS_TRINAMIC_CONFIG
+#if HAS_TRINAMIC_CONFIG || HAS_TMC26X

-  #define HOLD_MULTIPLIER    0.5  // Scales down the holding current from run current
+  #define HOLD_MULTIPLIER    0.7  // Scales down the holding current from run current

  /**
   * Interpolate microsteps to 256
@@ -3007,7 +2972,7 @@
    #define X_CURRENT       800        // (mA) RMS current. Multiply by 1.414 for peak current.
    #define X_CURRENT_HOME  X_CURRENT  // (mA) RMS current for sensorless homing
    #define X_MICROSTEPS     16        // 0..256
-    #define X_RSENSE          0.11
+    #define X_RSENSE          0.022     // Multiplied x1000 for TMC26X
    #define X_CHAIN_POS      -1        // -1..0: Not chained. 1: MCU MOSI connected. 2: Next in chain, ...
    //#define X_INTERPOLATE  true      // Enable to override 'INTERPOLATE' for the X axis
    //#define X_HOLD_MULTIPLIER 0.5    // Enable to override 'HOLD_MULTIPLIER' for the X axis
@@ -3027,7 +2992,7 @@
    #define Y_CURRENT       800
    #define Y_CURRENT_HOME  Y_CURRENT
    #define Y_MICROSTEPS     16
-    #define Y_RSENSE          0.11
+    #define Y_RSENSE          0.022
    #define Y_CHAIN_POS      -1
    //#define Y_INTERPOLATE  true
    //#define Y_HOLD_MULTIPLIER 0.5
@@ -3144,7 +3109,7 @@
  #endif

  #if AXIS_IS_TMC_CONFIG(E0)
-    #define E0_CURRENT      800
+    #define E0_CURRENT      900
    #define E0_MICROSTEPS    16
    #define E0_RSENSE         0.11
    #define E0_CHAIN_POS     -1
@@ -3249,7 +3214,7 @@
   * The default SW SPI pins are defined the respective pins files,
   * but you can override or define them here.
   */
-  //#define TMC_USE_SW_SPI
+  #define TMC_USE_SW_SPI
  //#define TMC_SPI_MOSI  -1
  //#define TMC_SPI_MISO  -1
  //#define TMC_SPI_SCK   -1
@@ -3309,7 +3274,7 @@
   * When disabled, Marlin will use spreadCycle stepping mode.
   */
  #if HAS_STEALTHCHOP
-    #define STEALTHCHOP_XY
+    //#define STEALTHCHOP_XY
    #define STEALTHCHOP_Z
    #define STEALTHCHOP_I
    #define STEALTHCHOP_J
@@ -3317,7 +3282,7 @@
    #define STEALTHCHOP_U
    #define STEALTHCHOP_V
    #define STEALTHCHOP_W
-    #define STEALTHCHOP_E
+    //#define STEALTHCHOP_E
  #endif

  /**
@@ -3335,11 +3300,11 @@
   * Define your own with:
   * { <off_time[1..15]>, <hysteresis_end[-3..12]>, hysteresis_start[1..8] }
   */
-  #define CHOPPER_TIMING CHOPPER_DEFAULT_24V        // All axes (override below)
-  //#define CHOPPER_TIMING_X  CHOPPER_TIMING        // For X Axes (override below)
+  //#define CHOPPER_TIMING CHOPPER_DEFAULT_36V        // All axes (override below)
+  #define CHOPPER_TIMING_X  CHOPPER_DEFAULT_36V        // For X Axes (override below)
  //#define CHOPPER_TIMING_X2 CHOPPER_TIMING_X
-  //#define CHOPPER_TIMING_Y  CHOPPER_TIMING        // For Y Axes (override below)
-  //#define CHOPPER_TIMING_Y2 CHOPPER_TIMING_Y
+  #define CHOPPER_TIMING_Y  CHOPPER_DEFAULT_36V        // For Y Axes (override below)
+  #define CHOPPER_TIMING_Y2 CHOPPER_TIMING_Y
  //#define CHOPPER_TIMING_Z  CHOPPER_TIMING        // For Z Axes (override below)
  //#define CHOPPER_TIMING_Z2 CHOPPER_TIMING_Z
  //#define CHOPPER_TIMING_Z3 CHOPPER_TIMING_Z
@@ -3350,7 +3315,7 @@
  //#define CHOPPER_TIMING_U  CHOPPER_TIMING        // For U Axis
  //#define CHOPPER_TIMING_V  CHOPPER_TIMING        // For V Axis
  //#define CHOPPER_TIMING_W  CHOPPER_TIMING        // For W Axis
-  //#define CHOPPER_TIMING_E  CHOPPER_TIMING        // For Extruders (override below)
+  #define CHOPPER_TIMING_E  CHOPPER_DEFAULT_24V        // For Extruders (override below)
  //#define CHOPPER_TIMING_E1 CHOPPER_TIMING_E
  //#define CHOPPER_TIMING_E2 CHOPPER_TIMING_E
  //#define CHOPPER_TIMING_E3 CHOPPER_TIMING_E
@@ -3377,7 +3342,7 @@
  #if ENABLED(MONITOR_DRIVER_STATUS)
    #define CURRENT_STEP_DOWN     50  // [mA]
    #define REPORT_CURRENT_CHANGE
-    #define STOP_ON_ERROR
+    //#define STOP_ON_ERROR
  #endif

  // @section tmc/hybrid
@@ -3389,7 +3354,7 @@
   * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
   * M913 X/Y/Z/E to live tune the setting
   */
-  #define HYBRID_THRESHOLD
+  //#define HYBRID_THRESHOLD

  #define X_HYBRID_THRESHOLD     100  // [mm/s]
  #define X2_HYBRID_THRESHOLD    100
@@ -3500,7 +3465,7 @@
   */
  #define TMC_ADV() {  }

-#endif // HAS_TRINAMIC_CONFIG
+#endif // HAS_TRINAMIC_CONFIG || HAS_TMC26X

 // @section i2cbus

@@ -3593,7 +3558,7 @@
 * Add the M3, M4, and M5 commands to turn the spindle/laser on and off, and
 * to set spindle speed, spindle direction, and laser power.
 *
- * SuperPID is a router/spindle speed controller used in the CNC milling community.
+ * SuperPid is a router/spindle speed controller used in the CNC milling community.
 * Marlin can be used to turn the spindle on and off. It can also be used to set
 * the spindle speed from 5,000 to 30,000 RPM.
 *
@@ -3607,10 +3572,7 @@
 #if ANY(SPINDLE_FEATURE, LASER_FEATURE)
  #define SPINDLE_LASER_ACTIVE_STATE    LOW    // Set to "HIGH" if SPINDLE_LASER_ENA_PIN is active HIGH

-  #if ENABLED(SKR12Pro)
-    #define SPINDLE_LASER_ENA_PIN PE4
-  #endif
-  //#define SPINDLE_LASER_USE_PWM                // Enable if your controller supports setting the speed/power
+  #define SPINDLE_LASER_USE_PWM                // Enable if your controller supports setting the speed/power
  #if ENABLED(SPINDLE_LASER_USE_PWM)
    #define SPINDLE_LASER_PWM_INVERT    false  // Set to "true" if the speed/power goes up when you want it to go slower
    #define SPINDLE_LASER_FREQUENCY     2500   // (Hz) Spindle/laser frequency (only on supported HALs: AVR, ESP32, and LPC)
@@ -3661,8 +3623,8 @@
    #define SPINDLE_CHANGE_DIR_STOP            // Enable if the spindle should stop before changing spin direction
    #define SPINDLE_INVERT_DIR          false  // Set to "true" if the spin direction is reversed

-    #define SPINDLE_LASER_POWERUP_DELAY   1 // (ms) Delay to allow the spindle/laser to come up to speed/power
-    #define SPINDLE_LASER_POWERDOWN_DELAY 1 // (ms) Delay to allow the spindle to stop
+    #define SPINDLE_LASER_POWERUP_DELAY   5000 // (ms) Delay to allow the spindle/laser to come up to speed/power
+    #define SPINDLE_LASER_POWERDOWN_DELAY 5000 // (ms) Delay to allow the spindle to stop

    /**
     * M3/M4 Power Equation
@@ -4041,41 +4003,33 @@
 // @section custom main menu

 // Custom Menu: Main Menu
-#define CUSTOM_MENU_MAIN
+//#define CUSTOM_MENU_MAIN
 #if ENABLED(CUSTOM_MENU_MAIN)
-  //#define CUSTOM_MENU_MAIN_SCRIPT_DONE "M117 User Script Done"
-  #define CUSTOM_MENU_MAIN_TITLE "Setup"
+  //#define CUSTOM_MENU_MAIN_TITLE "Custom Commands"
+  #define CUSTOM_MENU_MAIN_SCRIPT_DONE "M117 User Script Done"
  #define CUSTOM_MENU_MAIN_SCRIPT_AUDIBLE_FEEDBACK
-  #define CUSTOM_MENU_MAIN_SCRIPT_RETURN   // Return to status screen after a script
+  //#define CUSTOM_MENU_MAIN_SCRIPT_RETURN   // Return to status screen after a script
  #define CUSTOM_MENU_MAIN_ONLY_IDLE         // Only show custom menu when the machine is idle

-  #if ENABLED(TREX3)
-    #define COMMFANNSPEED " "
-  #else
-    #define COMMFANNSPEED  "M106 S128 \n"
-  #endif
+  #define MAIN_MENU_ITEM_1_DESC "Home & UBL Info"
+  #define MAIN_MENU_ITEM_1_GCODE "G28\nG29 W"
+  //#define MAIN_MENU_ITEM_1_CONFIRM          // Show a confirmation dialog before this action

-  #define MAIN_MENU_ITEM_1_DESC "Mesh Setup"
-  #define MAIN_MENU_ITEM_1_CONFIRM
-  #define MAIN_MENU_ITEM_3_DESC "Prep for Z Adjust"
-  #if ENABLED(ABL_Bilinear)
-    #define MAIN_MENU_ITEM_1_GCODE "M502 \n M500 \n M501 \n M190 S75 \n G28 \n G29 \n M500 \n G28 \n M420 S1 \n " COMMFANNSPEED " M109 S225 \n G1 X100 Y 100 \n G1 Z0 \n M77 \n M117 Set Z Offset"
-    #define MAIN_MENU_ITEM_3_GCODE "M190 S75 \n " COMMFANNSPEED " M104 235 \n G28 \n M420 S1 \n G1 X100 Y 100 \n G1 Z0"
-  #else
-    #define MAIN_MENU_ITEM_1_GCODE "M502 \n M500 \n M501 \n M190 S75 \n G28 \n G29 P1 \n G29 S1 \n G29 S0 \n G29 F 10.0 \n G29 A \n M500 \n G28 \n G29 L1 \n " COMMFANNSPEED " M109 S225 \n G1 X150 Y 150 \n G1 Z0 \n M77 \n M117 Set Z Offset"
-    #define MAIN_MENU_ITEM_3_GCODE "M190 S75 \n " COMMFANNSPEED " M104 235 \n G28 \n G29 L1 \n G1 X100 Y 100 \n G1 Z0"
-  #endif
+  #define MAIN_MENU_ITEM_2_DESC "Preheat for " PREHEAT_1_LABEL
+  #define MAIN_MENU_ITEM_2_GCODE "M140 S" STRINGIFY(PREHEAT_1_TEMP_BED) "\nM104 S" STRINGIFY(PREHEAT_1_TEMP_HOTEND)
+  //#define MAIN_MENU_ITEM_2_CONFIRM

-  #define MAIN_MENU_ITEM_4_DESC "Fill Mesh Points"
-  #define MAIN_MENU_ITEM_4_GCODE "G29 P3 \n G29 P3 \n G29 P3 \n G29 T"
+  //#define MAIN_MENU_ITEM_3_DESC "Preheat for " PREHEAT_2_LABEL
+  //#define MAIN_MENU_ITEM_3_GCODE "M140 S" STRINGIFY(PREHEAT_2_TEMP_BED) "\nM104 S" STRINGIFY(PREHEAT_2_TEMP_HOTEND)
+  //#define MAIN_MENU_ITEM_3_CONFIRM

-  #define MAIN_MENU_ITEM_2_DESC "PID Bed"
-  #define MAIN_MENU_ITEM_2_GCODE "M303 C4 S75 E-1 U \n M500 \n M117 PID Tune Done"
-  #define MAIN_MENU_ITEM_2_CONFIRM
+  //#define MAIN_MENU_ITEM_4_DESC "Heat Bed/Home/Level"
+  //#define MAIN_MENU_ITEM_4_GCODE "M140 S" STRINGIFY(PREHEAT_2_TEMP_BED) "\nG28\nG29"
+  //#define MAIN_MENU_ITEM_4_CONFIRM

-  #define MAIN_MENU_ITEM_5_DESC "Run Mesh Validation"
-  #define MAIN_MENU_ITEM_5_GCODE "G26"
-  #define MAIN_MENU_ITEM_5_CONFIRM
+  //#define MAIN_MENU_ITEM_5_DESC "Home & Info"
+  //#define MAIN_MENU_ITEM_5_GCODE "G28\nM503"
+  //#define MAIN_MENU_ITEM_5_CONFIRM
 #endif

 // @section custom config menu
@@ -4125,6 +4079,22 @@
    #define BUTTON1_GCODE         "G28"
    #define BUTTON1_DESC          "Homing"  // Optional string to set the LCD status
  #endif
+
+  //#define BUTTON2_PIN -1
+  #if PIN_EXISTS(BUTTON2)
+    #define BUTTON2_HIT_STATE     LOW
+    #define BUTTON2_WHEN_PRINTING false
+    #define BUTTON2_GCODE         "M140 S" STRINGIFY(PREHEAT_1_TEMP_BED) "\nM104 S" STRINGIFY(PREHEAT_1_TEMP_HOTEND)
+    #define BUTTON2_DESC          "Preheat for " PREHEAT_1_LABEL
+  #endif
+
+  //#define BUTTON3_PIN -1
+  #if PIN_EXISTS(BUTTON3)
+    #define BUTTON3_HIT_STATE     LOW
+    #define BUTTON3_WHEN_PRINTING false
+    #define BUTTON3_GCODE         "M140 S" STRINGIFY(PREHEAT_2_TEMP_BED) "\nM104 S" STRINGIFY(PREHEAT_2_TEMP_HOTEND)
+    #define BUTTON3_DESC          "Preheat for " PREHEAT_2_LABEL
+  #endif
 #endif

 // @section host
@@ -4338,7 +4308,6 @@
                                          // See class CodeProfiler.
  //#define MAX7219_DEBUG_MULTISTEPPING 6 // Show multi-stepping 1 to 128 on this LED matrix row.
  //#define MAX7219_DEBUG_SLOWDOWN      6 // Count (mod 16) how many times SLOWDOWN has reduced print speed.
-  //#define MAX7219_REINIT_ON_POWERUP     // Re-initialize MAX7129 when power supply turns on
 #endif

 /**
@@ -4372,7 +4341,7 @@
 * Extras for an ESP32-based motherboard with WIFISUPPORT
 * These options don't apply to add-on WiFi modules based on ESP32 WiFi101.
 */
-#if ANY(WIFISUPPORT, ESP3D_WIFISUPPORT)
+#if ENABLED(WIFISUPPORT)
  //#define WEBSUPPORT          // Start a webserver (which may include auto-discovery) using SPIFFS
  //#define OTASUPPORT          // Support over-the-air firmware updates
  //#define WIFI_CUSTOM_COMMAND // Accept feature config commands (e.g., WiFi ESP3D) from the host
@@ -4519,7 +4488,7 @@
 //
 // M42 - Set pin states
 //
-//#define DIRECT_PIN_CONTROL
+#define DIRECT_PIN_CONTROL

 //
 // M43 - display pin status, toggle pins, watch pins, watch endstops & toggle LED, test servo probe
@@ -4555,6 +4524,3 @@

 // Report uncleaned reset reason from register r2 instead of MCUSR. Supported by Optiboot on AVR.
 //#define OPTIBOOT_RESET_REASON
-
-// Shrink the build for smaller boards by sacrificing some serial feedback
-//#define MARLIN_SMALL_BUILD
@@ -28,25 +28,25 @@
 /**
 * Marlin release version identifier
 */
-#define SHORT_BUILD_VERSION "2.1.x-TR1"
+//#define SHORT_BUILD_VERSION "bugfix-2.1.x"

 /**
 * Verbose version identifier which should contain a reference to the location
 * from where the binary was downloaded or the source code was compiled.
 */
-#define DETAILED_BUILD_VERSION SHORT_BUILD_VERSION " TM3D"
+//#define DETAILED_BUILD_VERSION SHORT_BUILD_VERSION

 /**
 * The STRING_DISTRIBUTION_DATE represents when the binary file was built,
 * here we define this default string as the date where the latest release
 * version was tagged.
 */
-//#define STRING_DISTRIBUTION_DATE "2024-04-11"
+//#define STRING_DISTRIBUTION_DATE "2024-05-27"

 /**
 * Defines a generic printer name to be output to the LCD after booting Marlin.
 */
-#define MACHINE_NAME "TM3D Trex"
+//#define MACHINE_NAME "3D Printer"

 /**
 * The SOURCE_CODE_URL is the location where users will find the Marlin Source
@@ -54,7 +54,7 @@
 * has a distinct Github fork— the Source Code URL should just be the main
 * Marlin repository.
 */
-#define SOURCE_CODE_URL "https://github.com/InsanityAutomation/Marlin/tree/TM_Trex2+_2.0.x"
+//#define SOURCE_CODE_URL "github.com/MarlinFirmware/Marlin"

 /**
 * Default generic printer UUID.
@@ -65,7 +65,7 @@
 * The WEBSITE_URL is the location where users can get more information such as
 * documentation about a specific Marlin release.
 */
-#define WEBSITE_URL "tinymachines3d.com"
+//#define WEBSITE_URL "marlinfw.org"

 /**
 * Set the vendor info the serial USB interface, if changable
@@ -1,93 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * Custom Bitmap for splashscreen
- *
- * You may use one of the following tools to generate the C++ bitmap array from
- * a black and white image:
- *
- *  - http://www.marlinfw.org/tools/u8glib/converter.html
- *  - http://www.digole.com/tools/PicturetoC_Hex_converter.php
- */
-
-#define CUSTOM_BOOTSCREEN_TIMEOUT   2500
-#define CUSTOM_BOOTSCREEN_BMPWIDTH  128
-#define CUSTOM_BOOTSCREEN_INVERTED
-
-const unsigned char custom_start_bmp[] PROGMEM = {
-  B11111101,B01010101,B01010101,B01010101,B01010101,B01010101,B01011111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
-  B11111110,B00000000,B00000000,B00000000,B00000000,B00000000,B00111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
-  B11111101,B00000000,B00000000,B00000111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
-  B11111110,B00000111,B11000000,B00000101,B01010101,B01010101,B01010101,B01010101,B01010101,B01011111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
-  B11111100,B00001010,B00100000,B00000110,B00000000,B00000000,B00000000,B00000000,B00000000,B00111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
-  B11111110,B00010100,B00010000,B00000101,B00000000,B00000000,B00000111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
-  B11111100,B00101000,B00001000,B00000110,B00000111,B11000000,B00000101,B01010101,B01010101,B01010101,B01010101,B01010101,B01011111,B11111111,B11111111,B11111111,
-  B11111110,B01010100,B00000100,B00000100,B00001010,B00100000,B00000110,B00000000,B00000000,B00000000,B00000000,B00000000,B00111111,B11111111,B11111111,B11111111,
-  B11111100,B01100000,B00000100,B00000110,B00010100,B00010000,B00000101,B00000000,B00000000,B00000111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
-  B11111110,B01010000,B00000100,B00000100,B00101000,B00001000,B00000110,B00000111,B11000000,B00000101,B01010101,B01010101,B01010101,B01010101,B01010101,B01011111,
-  B11111100,B01100000,B00000100,B00000110,B01010100,B00000100,B00000100,B00001010,B00100000,B00000110,B00000000,B00000000,B00000000,B00000000,B00000000,B00111111,
-  B11111110,B01010100,B00000100,B00011100,B01100000,B00000100,B00000110,B00010100,B00010000,B00000101,B00000000,B00000000,B00000000,B00000000,B00000000,B00011111,
-  B11111100,B00101000,B00001000,B00101110,B01010000,B00000100,B00000100,B00101000,B00001000,B00000110,B00000111,B11000000,B00000000,B00000001,B11110000,B00111111,
-  B11111110,B00010100,B00010000,B01010100,B01100000,B00000100,B00000110,B01010100,B00000100,B00000100,B00001010,B00100000,B00000000,B00000010,B00001000,B00011111,
-  B11111100,B00001010,B00100000,B01100110,B01010100,B00000100,B00011100,B01100000,B00000100,B00000110,B00010100,B00010000,B00000000,B00000101,B00000100,B00111111,
-  B11111110,B00000111,B11000000,B01010100,B00101000,B00001000,B00101110,B01010000,B00000100,B00000100,B00101000,B00001000,B00000000,B00001010,B00000010,B00011111,
-  B11111100,B00000000,B00000000,B00101110,B00010100,B00010000,B01010100,B01100000,B00000100,B00000110,B01010100,B00000100,B00000000,B00010101,B00000001,B00111111,
-  B11111110,B00000000,B00000000,B00011100,B00001010,B00100000,B01100110,B01010100,B00000100,B00011100,B01100000,B00000100,B00000000,B00011000,B00000001,B00011111,
-  B11111100,B00000000,B00000000,B00000110,B00000111,B11000000,B01010100,B00101000,B00001000,B00101110,B01010000,B00000100,B00000000,B00010100,B00000001,B00111111,
-  B11111110,B00000000,B00000000,B00000100,B00000000,B00000000,B00101110,B00010100,B00010000,B01010100,B01100000,B00000100,B00000000,B00011000,B00000001,B00011111,
-  B11111100,B11111111,B11111111,B11111110,B00000000,B00000000,B00011100,B00001010,B00100000,B01100110,B01010100,B00000100,B00011100,B00010101,B00000001,B00111111,
-  B11111110,B11010101,B01010101,B01010100,B00000000,B00000000,B00000110,B00000111,B11000000,B01010100,B00101000,B00001000,B00101010,B00001010,B00000010,B00011111,
-  B11111100,B10000100,B00010000,B01000110,B00000000,B00000000,B00000100,B00000000,B00000000,B00101110,B00010100,B00010000,B01010001,B00000101,B00000100,B00111111,
-  B11111110,B11000100,B00010000,B01000100,B11111111,B11111111,B11111110,B00000000,B00000000,B00011100,B00001010,B00100000,B01100001,B00000010,B10001000,B00011111,
-  B11111100,B10000100,B00010000,B01000110,B11010101,B01010101,B01010100,B00000000,B00000000,B00000110,B00000111,B11000000,B01010001,B00000001,B11110000,B00111111,
-  B11111110,B10000100,B00010000,B01000100,B10000100,B00010000,B01000110,B00000000,B00000000,B00000100,B00000000,B00000000,B00101010,B00000000,B00000000,B00011111,
-  B11111100,B11000100,B00010000,B01000110,B11000100,B00010000,B01000100,B11111111,B11111111,B11111110,B00000000,B00000000,B00011100,B00000000,B00000000,B00111111,
-  B11111110,B10000100,B00010000,B01000100,B10000100,B00010000,B01000110,B11010101,B01010101,B01010100,B00000000,B00000000,B00000000,B00000000,B00000000,B00011111,
-  B11111100,B11010101,B01010101,B01010110,B10000100,B00010000,B01000100,B10000100,B00010000,B01000110,B00000000,B00000000,B00000000,B00000000,B00000000,B00111111,
-  B11111100,B11111111,B11111111,B11111100,B11000100,B00010000,B01000110,B11000100,B00010000,B01000100,B11111111,B11111111,B11111111,B11111111,B11111111,B10011111,
-  B11111110,B00000000,B00000000,B00000110,B10000100,B00010000,B01000100,B10000100,B00010000,B01000110,B11010101,B01010101,B01010101,B01010101,B01010101,B10111111,
-  B11111101,B01010101,B01010101,B01010100,B11010101,B01010101,B01010110,B10000100,B00010000,B01000100,B10000100,B00010000,B01000001,B00000100,B00010000,B10011111,
-  B11111111,B11111111,B11111111,B11111100,B11111111,B11111111,B11111100,B11000100,B00010000,B01000110,B11000100,B00010000,B01000001,B00000100,B00010001,B10111111,
-  B11111111,B11111111,B11111111,B11111110,B00000000,B00000000,B00000110,B10000100,B00010000,B01000100,B10000100,B00010000,B01000001,B00000100,B00010000,B10011111,
-  B11111111,B11111111,B11111111,B11111101,B01010101,B01010101,B01010100,B11010101,B01010101,B01010110,B10000100,B00010000,B01000001,B00000100,B00010000,B10011111,
-  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111100,B11111111,B11111111,B11111100,B11000100,B00010000,B01000001,B00000100,B00010001,B10111111,
-  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111110,B00000000,B00000000,B00000110,B10000100,B00010000,B01000001,B00000100,B00010000,B10011111,
-  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111101,B01010101,B01010101,B01010100,B11010101,B01010101,B01010101,B01010101,B01010101,B10111111,
-  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111100,B11111111,B11111111,B11111111,B11111111,B11111111,B10011111,
-  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111110,B00000000,B00000000,B00000000,B00000000,B00000000,B00111111,
-  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111101,B01010101,B01010101,B01010101,B01010101,B01010101,B01011111,
-  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
-  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
-  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
-  B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,B11111111,
-  B11100000,B00101110,B11111011,B01111101,B11111011,B11111011,B11001111,B11000001,B11011111,B10111011,B00111110,B11000000,B11100001,B11111110,B00111100,B00011111,
-  B11111101,B11101110,B01111011,B00111001,B11111001,B11110011,B11001111,B10011110,B11011111,B10111011,B00111110,B11011111,B11011110,B11111100,B11011101,B11100111,
-  B11111101,B11101110,B00111011,B10111011,B11111001,B11101011,B11010111,B10111111,B01011111,B10111011,B01011110,B11011111,B11011110,B11111101,B11101101,B11110111,
-  B11111101,B11101110,B10111011,B11010011,B11111010,B11101011,B10110111,B00111111,B11011111,B10111011,B01001110,B11011111,B11011111,B11111111,B11001101,B11110011,
-  B11111101,B11101110,B11011011,B11000111,B11111010,B11101011,B10111011,B01111111,B11000000,B00111011,B01101110,B11000000,B11100011,B11111111,B00011101,B11110011,
-  B11111101,B11101110,B11001011,B11101111,B11111010,B11011011,B10111011,B01111111,B11011111,B10111011,B01100110,B11011111,B11111000,B11111111,B11001101,B11110011,
-  B11111101,B11101110,B11101011,B11101111,B11111011,B01011011,B00000011,B00111111,B01011111,B10111011,B01110110,B11011111,B11111110,B01111111,B11101101,B11110011,
-  B11111101,B11101110,B11110011,B11101111,B11111011,B01011011,B01111001,B10111110,B11011111,B10111011,B01111010,B11011111,B11011110,B01111101,B11101101,B11110111,
-  B11111101,B11101110,B11110011,B11101111,B11111011,B10111010,B11111101,B10011110,B11011111,B10111011,B01111100,B11011111,B11011110,B11111101,B11001101,B11100111,
-  B11111101,B11101110,B11111011,B11101111,B11111011,B10111010,B11111101,B11000001,B11011111,B10111011,B01111110,B11000000,B11100000,B11111110,B00011100,B00011111
-};
@@ -1,74 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * Custom Status Screen bitmap
- *
- * Place this file in the root with your configuration files
- * and enable CUSTOM_STATUS_SCREEN_IMAGE in Configuration.h.
- *
- * Use the Marlin Bitmap Converter to make your own:
- * http://marlinfw.org/tools/u8glib/converter.html
- */
-
-//
-// Status Screen Logo bitmap
-//
-#define STATUS_LOGO_Y            3
-#define STATUS_LOGO_WIDTH       24
-
-const unsigned char status_logo_bmp[] PROGMEM = {
-  B11111111,B11111111,B11111111,
-  B10000000,B00000000,B00000001,
-  B10001110,B00000000,B11100001,
-  B10011111,B00000001,B11110001,
-  B10010011,B10000001,B00111001,
-  B10011111,B10000001,B11111001,
-  B10011111,B10000001,B11111001,
-  B10011111,B10111001,B11111001,
-  B10001111,B00101000,B11110001,
-  B10000000,B00111000,B00000001,
-  B10000000,B00000000,B00000001,
-  B10011111,B11111111,B11111001,
-  B10010001,B01110100,B10011001,
-  B10011011,B00000110,B10101001,
-  B10011011,B01010100,B10101001,
-  B10011011,B01010110,B10101001,
-  B10011011,B01010100,B10011001,
-  B10011111,B11111111,B11111001,
-  B11111111,B11111111,B11111111
-};
-
-//
-// Use default bitmaps
-//
-#define STATUS_HOTEND_ANIM
-#define STATUS_BED_ANIM
-#if HOTENDS < 2
-  #define STATUS_LOGO_X          8
-  #define STATUS_HEATERS_X      40
-  #define STATUS_BED_X          72
-#else
-  #define STATUS_LOGO_X          0
-  #define STATUS_HEATERS_X      32
-  #define STATUS_BED_X          80
-#endif
@@ -61,7 +61,7 @@
 #else
  #define G2_PWM_Z 0
 #endif
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_E)
+#if HAS_MOTOR_CURRENT_PWM_E
  #define G2_PWM_E 1
 #else
  #define G2_PWM_E 0
@@ -18,30 +18,30 @@ extern "C" {
 void sd_mmc_spi_mem_init() {
 }

-Ctrl_status sd_mmc_spi_test_unit_ready() {
-  #ifdef DISABLE_DUE_SD_MMC
-    return CTRL_NO_PRESENT;
-  #endif
-  if (!IS_SD_INSERTED() || IS_SD_PRINTING() || IS_SD_FILE_OPEN() || !card.isMounted())
-    return CTRL_NO_PRESENT;
-  return CTRL_GOOD;
-}
-
-// NOTE: This function is defined as returning the address of the last block
-// in the card, which is cardSize() - 1
-Ctrl_status sd_mmc_spi_read_capacity(uint32_t *nb_sector) {
-  if (!IS_SD_INSERTED() || IS_SD_PRINTING() || IS_SD_FILE_OPEN() || !card.isMounted())
-    return CTRL_NO_PRESENT;
-  *nb_sector = card.diskIODriver()->cardSize() - 1;
-  return CTRL_GOOD;
+inline bool media_ready() {
+  return IS_SD_INSERTED() && !IS_SD_PRINTING() && !IS_SD_FILE_OPEN() && card.isMounted();
 }

 bool sd_mmc_spi_unload(bool) { return true; }

 bool sd_mmc_spi_wr_protect() { return false; }

-bool sd_mmc_spi_removal() {
-  return (!IS_SD_INSERTED() || IS_SD_PRINTING() || IS_SD_FILE_OPEN() || !card.isMounted());
+bool sd_mmc_spi_removal() { return !media_ready(); }
+
+Ctrl_status sd_mmc_spi_test_unit_ready() {
+  #ifdef DISABLE_DUE_SD_MMC
+    return CTRL_NO_PRESENT;
+  #endif
+  if (!media_ready()) return CTRL_NO_PRESENT;
+  return CTRL_GOOD;
+}
+
+// NOTE: This function is defined as returning the address of the last block
+// in the card, which is cardSize() - 1
+Ctrl_status sd_mmc_spi_read_capacity(uint32_t *nb_sector) {
+  if (!media_ready()) return CTRL_NO_PRESENT;
+  *nb_sector = card.diskIODriver()->cardSize() - 1;
+  return CTRL_GOOD;
 }

 #if ACCESS_USB == true
@@ -61,8 +61,7 @@ Ctrl_status sd_mmc_spi_usb_read_10(uint32_t addr, uint16_t nb_sector) {
  #ifdef DISABLE_DUE_SD_MMC
    return CTRL_NO_PRESENT;
  #endif
-  if (!IS_SD_INSERTED() || IS_SD_PRINTING() || IS_SD_FILE_OPEN() || !card.isMounted())
-    return CTRL_NO_PRESENT;
+  if (!media_ready()) return CTRL_NO_PRESENT;

  #ifdef DEBUG_MMC
  {
@@ -101,8 +100,7 @@ Ctrl_status sd_mmc_spi_usb_write_10(uint32_t addr, uint16_t nb_sector) {
  #ifdef DISABLE_DUE_SD_MMC
    return CTRL_NO_PRESENT;
  #endif
-  if (!IS_SD_INSERTED() || IS_SD_PRINTING() || IS_SD_FILE_OPEN() || !card.isMounted())
-    return CTRL_NO_PRESENT;
+  if (!media_ready()) return CTRL_NO_PRESENT;

  #ifdef DEBUG_MMC
  {
@@ -74,7 +74,7 @@
 //!
 //! @brief This function initializes the hw/sw resources required to drive the SD_MMC_SPI.
 //!/
-extern void           sd_mmc_spi_mem_init(void);
+void sd_mmc_spi_mem_init();

 //!
 //! @brief This function tests the state of the SD_MMC memory and sends it to the Host.
@@ -87,7 +87,7 @@ extern void           sd_mmc_spi_mem_init(void);
 //!   Media not present    ->    CTRL_NO_PRESENT
 //!   Media has changed    ->    CTRL_BUSY
 //!/
-extern Ctrl_status    sd_mmc_spi_test_unit_ready(void);
+Ctrl_status sd_mmc_spi_test_unit_ready();

 //!
 //! @brief This function gives the address of the last valid sector.
@@ -98,7 +98,7 @@ extern Ctrl_status    sd_mmc_spi_test_unit_ready(void);
 //!   Media ready          ->  CTRL_GOOD
 //!   Media not present    ->  CTRL_NO_PRESENT
 //!/
-extern Ctrl_status    sd_mmc_spi_read_capacity(uint32_t *nb_sector);
+Ctrl_status sd_mmc_spi_read_capacity(uint32_t *nb_sector);

 /*! \brief Unload/Load the SD/MMC card selected
 *
@@ -109,7 +109,7 @@ extern Ctrl_status    sd_mmc_spi_read_capacity(uint32_t *nb_sector);
 *
 * \return \c true if unload/load done success.
 */
-extern bool sd_mmc_spi_unload(bool unload);
+bool sd_mmc_spi_unload(bool unload);

 //!
 //! @brief This function returns the write protected status of the memory.
@@ -120,14 +120,14 @@ extern bool sd_mmc_spi_unload(bool unload);
 //!
 //! @return false  -> the memory is not write-protected (always)
 //!/
-extern bool           sd_mmc_spi_wr_protect(void);
+bool sd_mmc_spi_wr_protect();

 //!
 //! @brief This function tells if the memory has been removed or not.
 //!
 //! @return false  -> The memory isn't removed
 //!
-extern bool           sd_mmc_spi_removal(void);
+bool sd_mmc_spi_removal();

 //---- ACCESS DATA FUNCTIONS ----

@@ -147,7 +147,7 @@ extern bool           sd_mmc_spi_removal(void);
 //!   It is ready    ->    CTRL_GOOD
 //!   A error occur  ->    CTRL_FAIL
 //!
-extern Ctrl_status    sd_mmc_spi_usb_read_10(uint32_t addr, uint16_t nb_sector);
+Ctrl_status sd_mmc_spi_usb_read_10(uint32_t addr, uint16_t nb_sector);

 //! This function initializes the SD/MMC memory for a write operation
 //!
@@ -161,7 +161,7 @@ extern Ctrl_status    sd_mmc_spi_usb_read_10(uint32_t addr, uint16_t nb_sector);
 //!   It is ready    ->    CTRL_GOOD
 //!   An error occurs  ->    CTRL_FAIL
 //!
-extern Ctrl_status    sd_mmc_spi_usb_write_10(uint32_t addr, uint16_t nb_sector);
+Ctrl_status sd_mmc_spi_usb_write_10(uint32_t addr, uint16_t nb_sector);

 #endif // #if ACCESS_USB == true

@@ -53,12 +53,11 @@ typedef uint64_t hal_timer_t;
 #if ENABLED(I2S_STEPPER_STREAM)
  #define STEPPER_TIMER_PRESCALE     1
  #define STEPPER_TIMER_RATE         250000                           // 250khz, 4µs pulses of i2s word clock
-  #define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // stepper timer ticks per µs // wrong would be 0.25
 #else
  #define STEPPER_TIMER_PRESCALE     40
  #define STEPPER_TIMER_RATE         ((HAL_TIMER_RATE) / (STEPPER_TIMER_PRESCALE)) // frequency of stepper timer, 2MHz
-  #define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000)              // stepper timer ticks per µs
 #endif
+#define STEPPER_TIMER_TICKS_PER_US   ((STEPPER_TIMER_RATE) / 1000000) // stepper timer ticks per µs

 #define STEP_TIMER_MIN_INTERVAL   8 // minimum time in µs between stepper interrupts

@@ -142,12 +142,31 @@
 // ADC
 //
 #define HAL_ADC_VREF_MV 3300
-#define HAL_ADC_RESOLUTION 10
+#define HAL_ADC_RESOLUTION 12

 #define GET_PIN_MAP_PIN(index) index
 #define GET_PIN_MAP_INDEX(pin) pin
 #define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval)

+//
+// Debug port disable
+// JTMS / SWDIO = PA13
+// JTCK / SWCLK = PA14
+// JTDI         = PA15
+// JTDO         = PB3
+// NJTRST       = PB4
+//
+#define DBG_SWCLK _BV(0)
+#define DBG_SWDIO _BV(1)
+#define DBG_TDO   _BV(2)
+#define DBG_TDI   _BV(3)
+#define DBG_TRST  _BV(4)
+#define DBG_ALL (DBG_SWCLK | DBG_SWDIO | DBG_TDO | DBG_TDI | DBG_TRST)
+
+#define JTAGSWD_RESET() PORT_DebugPortSetting(DBG_ALL, Enable);
+#define JTAG_DISABLE() PORT_DebugPortSetting(DBG_TDO | DBG_TDI | DBG_TRST, Disable);
+#define JTAGSWD_DISABLE() PORT_DebugPortSetting(DBG_ALL, Disable);
+
 //
 // MarlinHAL implementation
 //
@@ -123,6 +123,11 @@ void MarlinHAL::init() {

  // Register min serial
  TERN_(POSTMORTEM_DEBUGGING, install_min_serial());
+
+  // warn if low memory after init
+  if (freeMemory() < 1024) {
+    SERIAL_WARN_MSG("HAL: low memory after init!\n");
+  }
 }

 void MarlinHAL::init_board() {}
@@ -147,7 +152,31 @@ void MarlinHAL::delay_ms(const int ms) {
  delay(ms);
 }

-void MarlinHAL::idletask() {}
+void MarlinHAL::idletask() {
+  #if ENABLED(MARLIN_DEV_MODE)
+    // check & print serial RX errors
+    MSerialT *serials[] = { &MSerial1, &MSerial2 };
+    for (int serial = 0; serial < 2; serial++) {
+      usart_receive_error_t err = serials[serial]->getReceiveError();
+      if (err != usart_receive_error_t::None) {
+        // "Warning: MSerial[n] RX [Framing|Parity|Overrun] Error"
+        SERIAL_WARN_START();
+        SERIAL_ECHOPGM(" MSerial");
+        SERIAL_ECHO(serial + 1);
+        SERIAL_ECHOPGM(" RX ");
+        switch(err) {
+          case usart_receive_error_t::FramingError: SERIAL_ECHOPGM("Framing"); break;
+          case usart_receive_error_t::ParityError:  SERIAL_ECHOPGM("Parity");  break;
+          case usart_receive_error_t::OverrunError: SERIAL_ECHOPGM("Overrun"); break;
+          case usart_receive_error_t::RxDataDropped: SERIAL_ECHOPGM("DataDropped"); break;
+          default: break;
+        }
+        SERIAL_ECHOPGM(" Error");
+        SERIAL_EOL();
+      }
+    }
+  #endif
+}

 uint8_t MarlinHAL::get_reset_source() {
  // Query reset cause from RMU
@@ -203,7 +232,9 @@ int MarlinHAL::freeMemory() {
  return &top - _sbrk(0);
 }

-void MarlinHAL::adc_init() {}
+void MarlinHAL::adc_init() {
+  analogReadResolution(HAL_ADC_RESOLUTION);
+}

 void MarlinHAL::adc_enable(const pin_t pin) {
  #if TEMP_SENSOR_SOC
@@ -46,14 +46,34 @@ constexpr bool serial_handles_emergency(int port) {
 //
 // Define serial ports
 //
-#define DEFINE_HWSERIAL_MARLIN(name, n)      \
+
+// serial port where RX and TX use IRQs
+#define DEFINE_IRQ_SERIAL_MARLIN(name, n)      \
  MSerialT name(serial_handles_emergency(n), \
                &USART##n##_config,          \
                BOARD_USART##n##_TX_PIN,     \
                BOARD_USART##n##_RX_PIN);

-DEFINE_HWSERIAL_MARLIN(MSerial1, 1);
-DEFINE_HWSERIAL_MARLIN(MSerial2, 2);
+// serial port where RX uses DMA and TX uses IRQs
+// all serial ports use DMA1
+// since there are 4 USARTs and 4 DMA channels, we can use the USART number as the DMA channel
+#define DEFINE_DMA_SERIAL_MARLIN(name, n)      \
+  MSerialT name(serial_handles_emergency(n), \
+                &USART##n##_config,          \
+                BOARD_USART##n##_TX_PIN,     \
+                BOARD_USART##n##_RX_PIN,     \
+                M4_DMA1,                     \
+                ((en_dma_channel_t)(n - 1))); // map USART1 to DMA channel 0, USART2 to DMA channel 1, etc.
+
+#define DEFINE_SERIAL_MARLIN(name, n) TERN(SERIAL_DMA, DEFINE_DMA_SERIAL_MARLIN(name, n), DEFINE_IRQ_SERIAL_MARLIN(name, n))
+
+DEFINE_SERIAL_MARLIN(MSerial1, 1);
+DEFINE_SERIAL_MARLIN(MSerial2, 2);
+
+// TODO: remove this warning when SERIAL_DMA has been tested some more
+#if ENABLED(SERIAL_DMA)
+  #warning "SERIAL_DMA may be unstable on HC32F460."
+#endif

 //
 // Serial port assertions
@@ -25,17 +25,42 @@
 #include <drivers/usart/Usart.h>

 // Optionally set uart IRQ priority to reduce overflow errors
-// #define UART_IRQ_PRIO 1
+//#define UART_RX_IRQ_PRIO 1
+//#define UART_TX_IRQ_PRIO 1
+//#define UART_RX_DMA_IRQ_PRIO 1

 struct MarlinSerial : public Usart {
-  MarlinSerial(struct usart_config_t *usart_device, gpio_pin_t tx_pin, gpio_pin_t rx_pin) : Usart(usart_device, tx_pin, rx_pin) {}
+  MarlinSerial(
+    struct usart_config_t *usart_device,
+    gpio_pin_t tx_pin,
+    gpio_pin_t rx_pin
+    #if ENABLED(SERIAL_DMA)
+    , M4_DMA_TypeDef *dma_unit = nullptr,
+    en_dma_channel_t rx_dma_channel = DmaCh0
+    #endif
+  ) : Usart(usart_device, tx_pin, rx_pin) {
+    #if ENABLED(SERIAL_DMA)
+      if (dma_unit != nullptr) {
+        enableRxDma(dma_unit, rx_dma_channel);
+      }
+    #endif
+  }

-  #ifdef UART_IRQ_PRIO
+  #if defined(UART_RX_IRQ_PRIO) || defined(UART_TX_IRQ_PRIO) || defined(UART_RX_DMA_IRQ_PRIO)
    void setPriority() {
-      NVIC_SetPriority(c_dev()->interrupts.rx_data_available.interrupt_number, UART_IRQ_PRIO);
-      NVIC_SetPriority(c_dev()->interrupts.rx_error.interrupt_number, UART_IRQ_PRIO);
-      NVIC_SetPriority(c_dev()->interrupts.tx_buffer_empty.interrupt_number, UART_IRQ_PRIO);
-      NVIC_SetPriority(c_dev()->interrupts.tx_complete.interrupt_number, UART_IRQ_PRIO);
+      #if defined(UART_RX_IRQ_PRIO)
+        NVIC_SetPriority(c_dev()->interrupts.rx_data_available.interrupt_number, UART_RX_IRQ_PRIO);
+        NVIC_SetPriority(c_dev()->interrupts.rx_error.interrupt_number, UART_RX_IRQ_PRIO);
+      #endif
+
+      #if defined(UART_TX_IRQ_PRIO)
+        NVIC_SetPriority(c_dev()->interrupts.tx_buffer_empty.interrupt_number, UART_TX_IRQ_PRIO);
+        NVIC_SetPriority(c_dev()->interrupts.tx_complete.interrupt_number, UART_TX_IRQ_PRIO);
+      #endif
+
+      #if defined(UART_RX_DMA_IRQ_PRIO) && ENABLED(SERIAL_DMA)
+        NVIC_SetPriority(c_dev()->dma.rx.rx_data_available_dma_btc.interrupt_number, UART_RX_DMA_IRQ_PRIO);
+      #endif
    }

    void begin(uint32_t baud) {
@@ -47,7 +72,12 @@ struct MarlinSerial : public Usart {
      Usart::begin(baud, config);
      setPriority();
    }
-  #endif
+
+    void begin(uint32_t baud, const stc_usart_uart_init_t *config, const bool rxNoiseFilter = true) {
+      Usart::begin(baud, config, rxNoiseFilter);
+      setPriority();
+    }
+  #endif // UART_RX_IRQ_PRIO || UART_TX_IRQ_PRIO || UART_RX_DMA_IRQ_PRIO
 };

 typedef Serial1Class<MarlinSerial> MSerialT;
@@ -0,0 +1,75 @@
+/**
+ * app_config.h is included by the hc32f460 arduino build script for every source file.
+ * it is used to configure the arduino core (and ddl) automatically according
+ * to the settings in Configuration.h and Configuration_adv.h.
+ */
+#pragma once
+#ifndef _HC32_APP_CONFIG_H_
+#define _HC32_APP_CONFIG_H_
+
+#include "../../inc/MarlinConfigPre.h"
+
+//
+// dev mode
+//
+#if ENABLED(MARLIN_DEV_MODE)
+  #define __DEBUG 1
+  #define __CORE_DEBUG 1
+#endif
+
+//
+// Fault Handlers and Panic
+//
+
+#if ENABLED(POSTMORTEM_DEBUGGING)
+  // disable arduino core fault handler, as we define our own
+  #define CORE_DISABLE_FAULT_HANDLER 1
+#endif
+
+// force-enable panic handler so that we can use our custom one (in MinSerial)
+#define PANIC_ENABLE 1
+
+// use short filenames in ddl debug and core panic output
+#define __DEBUG_SHORT_FILENAMES 1
+#define __PANIC_SHORT_FILENAMES 1
+
+// omit panic messages in core panic output
+#define __OMIT_PANIC_MESSAGE 1
+
+//
+// Usart
+//
+
+// disable serial globals (Serial1, Serial2, ...), as we define our own
+#define DISABLE_SERIAL_GLOBALS 1
+
+// increase the size of the Usart buffers (both RX and TX)
+// NOTE:
+// the heap usage will increase by (SERIAL_BUFFER_SIZE - 64) * "number of serial ports used"
+// if running out of heap, the system may become unstable
+//#define SERIAL_BUFFER_SIZE 256
+
+// enable support for Usart Clock Divider / Oversampling auto config
+#define USART_AUTO_CLKDIV_OS_CONFIG 1
+
+// enable USART_RX_DMA_SUPPORT core option when SERIAL_DMA is enabled
+#if ENABLED(SERIAL_DMA)
+  #define USART_RX_DMA_SUPPORT 1
+#endif
+
+//
+// Misc.
+//
+
+// redirect printf to host serial
+#define REDIRECT_PRINTF_TO_SERIAL 1
+
+// F_CPU must be known at compile time, but on HC32F460 it's not.
+// Thus we assume HCLK to be 200MHz, as that's what is configured in
+// 'core_hook_sysclock_init' in 'sysclock.cpp'.
+// If you face issues with this assumption, please double-check with the values
+// printed by 'MarlinHAL::HAL_clock_frequencies_dump'.
+// see also: HAL_TIMER_RATE in timers.h
+#define F_CPU 200000000 // 200MHz HCLK
+
+#endif // _HC32_APP_CONFIG_H_
@@ -20,6 +20,20 @@
 *
 */
 #pragma once
+#include <core_util.h>
+
+#if !defined(ARDUINO_CORE_VERSION_INT) || !defined(GET_VERSION_INT)
+  // version macros were introduced in arduino core version 1.1.0
+  // below that version, we polyfill them
+  #define GET_VERSION_INT(major, minor, patch) ((major * 100000) + (minor * 1000) + patch)
+  #define ARDUINO_CORE_VERSION_INT GET_VERSION_INT(1, 0, 0)
+#endif
+
+#if ARDUINO_CORE_VERSION_INT < GET_VERSION_INT(1, 1, 0)
+  // because we use app_config.h introduced in arduino core version 1.1.0, the
+  // HAL is not compatible with older versions
+  #error "The HC32 HAL is not compatible with Arduino Core versions < 1.1.0. Consider updating the Arduino Core."
+#endif

 #ifndef BOARD_XTAL_FREQUENCY
  #error "BOARD_XTAL_FREQUENCY is required for HC32F460."
@@ -74,3 +88,18 @@
    #error "HC32 HAL uses a custom panic handler. Do not define PANIC_USARTx_TX_PIN."
  #endif
 #endif
+
+#if ENABLED(SERIAL_DMA)
+  #if !defined(USART_RX_DMA_SUPPORT)
+    #error "SERIAL_DMA requires USART_RX_DMA_SUPPORT to be enabled in the arduino core."
+  #endif
+
+  // USART_RX_DMA_SUPPORT does not implement core_hook_usart_rx_irq, which is required for the emergency parser
+  #if ENABLED(EMERGENCY_PARSER)
+    #error "EMERGENCY_PARSER is not supported with SERIAL_DMA. Please disable either SERIAL_DMA or EMERGENCY_PARSER."
+  #endif
+
+  #if ARDUINO_CORE_VERSION_INT < GET_VERSION_INT(1, 1, 0)
+    #error "SERIAL_DMA is not supported with arduino core version < 1.1.0."
+  #endif
+#endif
@@ -54,7 +54,7 @@
    fn                                              \
  }

-stc_sd_handle_t *handle;
+stc_sd_handle_t *handle = nullptr;

 bool SDIO_Init() {
  // Configure SDIO pins
@@ -66,36 +66,45 @@ bool SDIO_Init() {
  GPIO_SetFunc(BOARD_SDIO_CMD, Func_Sdio);
  GPIO_SetFunc(BOARD_SDIO_DET, Func_Sdio);

+  // If a handle is already initialized, free it before creating a new one
+  // otherwise, we will leak memory, which will eventually crash the system
+  if (handle != nullptr) {
+    delete handle->pstcDmaInitCfg;
+    delete handle->pstcCardInitCfg;
+    delete handle;
+    handle = nullptr;
+  }
+
  // Create DMA configuration
  stc_sdcard_dma_init_t *dmaConf = new stc_sdcard_dma_init_t;
  dmaConf->DMAx = SDIO_DMA_PERIPHERAL;
  dmaConf->enDmaCh = SDIO_DMA_CHANNEL;

+  // Create card configuration
+  // This should be a fairly safe configuration for most cards
+  stc_sdcard_init_t *cardConf = new stc_sdcard_init_t;
+  cardConf->enBusWidth = SdiocBusWidth4Bit;
+  cardConf->enClkFreq = SdiocClk400K;
+  cardConf->enSpeedMode = SdiocNormalSpeedMode;
+  cardConf->pstcInitCfg = nullptr;
+
  // Create handle in DMA mode
  handle = new stc_sd_handle_t;
  handle->SDIOCx = SDIO_PERIPHERAL;
  handle->enDevMode = SdCardDmaMode;
  handle->pstcDmaInitCfg = dmaConf;
-
-  // Create card configuration
-  // This should be a fairly safe configuration for most cards
-  stc_sdcard_init_t cardConf = {
-    .enBusWidth = SdiocBusWidth4Bit,
-    .enClkFreq = SdiocClk400K,
-    .enSpeedMode = SdiocNormalSpeedMode,
-    //.pstcInitCfg = NULL,
-  };
+  //handle->pstcCardInitCfg = cardConf; // assigned in SDCARD_Init

  // Initialize sd card
-  en_result_t rc = SDCARD_Init(handle, &cardConf);
+  en_result_t rc = SDCARD_Init(handle, cardConf);
  if (rc != Ok) printf("SDIO_Init() error (rc=%u)\n", rc);

  return rc == Ok;
 }

 bool SDIO_ReadBlock(uint32_t block, uint8_t *dst) {
-  CORE_ASSERT(handle != NULL, "SDIO not initialized");
-  CORE_ASSERT(dst != NULL, "SDIO_ReadBlock dst is NULL");
+  CORE_ASSERT(handle != nullptr, "SDIO not initialized", return false);
+  CORE_ASSERT(dst != nullptr, "SDIO_ReadBlock dst is NULL", return false);

  WITH_RETRY(SDIO_READ_RETRIES, {
    en_result_t rc = SDCARD_ReadBlocks(handle, block, 1, dst, SDIO_READ_TIMEOUT);
@@ -107,8 +116,8 @@ bool SDIO_ReadBlock(uint32_t block, uint8_t *dst) {
 }

 bool SDIO_WriteBlock(uint32_t block, const uint8_t *src) {
-  CORE_ASSERT(handle != NULL, "SDIO not initialized");
-  CORE_ASSERT(src != NULL, "SDIO_WriteBlock src is NULL");
+  CORE_ASSERT(handle != nullptr, "SDIO not initialized", return false);
+  CORE_ASSERT(src != nullptr, "SDIO_WriteBlock src is NULL", return false);

  WITH_RETRY(SDIO_WRITE_RETRIES, {
    en_result_t rc = SDCARD_WriteBlocks(handle, block, 1, (uint8_t *)src, SDIO_WRITE_TIMEOUT);
@@ -120,12 +129,12 @@ bool SDIO_WriteBlock(uint32_t block, const uint8_t *src) {
 }

 bool SDIO_IsReady() {
-  CORE_ASSERT(handle != NULL, "SDIO not initialized");
+  CORE_ASSERT(handle != nullptr, "SDIO not initialized", return false);
  return bool(handle->stcCardStatus.READY_FOR_DATA);
 }

 uint32_t SDIO_GetCardSize() {
-  CORE_ASSERT(handle != NULL, "SDIO not initialized");
+  CORE_ASSERT(handle != nullptr, "SDIO not initialized", return 0);

  // Multiply number of blocks with block size to get size in bytes
  const uint64_t cardSizeBytes = uint64_t(handle->stcSdCardInfo.u32LogBlockNbr) * uint64_t(handle->stcSdCardInfo.u32LogBlockSize);
@@ -96,29 +96,44 @@ void core_hook_sysclock_init() {
    #endif
  #endif

-  // Setup clock divisors for sysclk = 200 MHz:
+  // sysclk is now configured according to F_CPU (i.e., 200MHz PLL output)
+  constexpr uint32_t sysclock = F_CPU;
+
+  // Setup clock divisors for sysclk = 200 MHz
  // Note: PCLK1 is used for step+temp timers, and need to be kept at 50 MHz (until there is a better solution)
-  stc_clk_sysclk_cfg_t sysClkConf = {
+  constexpr stc_clk_sysclk_cfg_t sysClkConf = {
      .enHclkDiv = ClkSysclkDiv1,  // HCLK  = 200 MHz (CPU)
      .enExclkDiv = ClkSysclkDiv2, // EXCLK = 100 MHz (SDIO)
-      .enPclk0Div = ClkSysclkDiv1, // PCLK0 = 200 MHz (Timer6 (not used))
+      .enPclk0Div = ClkSysclkDiv2, // PCLK0 = 100 MHz (Timer6 (not used))
      .enPclk1Div = ClkSysclkDiv4, // PCLK1 = 50 MHz (USART, SPI, I2S, Timer0 (step+temp), TimerA (Servo))
-      .enPclk2Div = ClkSysclkDiv4, // PCLK2 = 50 MHz (ADC)
-      .enPclk3Div = ClkSysclkDiv4, // PCLK3 = 50 MHz (I2C, WDT)
+      .enPclk2Div = ClkSysclkDiv8, // PCLK2 = 25 MHz (ADC)
+      .enPclk3Div = ClkSysclkDiv8, // PCLK3 = 25 MHz (I2C, WDT)
      .enPclk4Div = ClkSysclkDiv2, // PCLK4 = 100 MHz (ADC ctl)
  };
+
+  #if ARDUINO_CORE_VERSION_INT >= GET_VERSION_INT(1, 2, 0)
+    assert_system_clocks_valid<
+      sysclock,
+      sysClkConf.enHclkDiv,
+      sysClkConf.enPclk0Div,
+      sysClkConf.enPclk1Div,
+      sysClkConf.enPclk2Div,
+      sysClkConf.enPclk3Div,
+      sysClkConf.enPclk4Div,
+      sysClkConf.enExclkDiv
+    >();
+  #endif
+
  sysclock_set_clock_dividers(&sysClkConf);

  // Set power mode
-  #define POWER_MODE_SYSTEM_CLOCK 200000000 // 200 MHz
-  power_mode_update_pre(POWER_MODE_SYSTEM_CLOCK);
+  power_mode_update_pre(sysclock);

  // Switch to MPLL as sysclk source
  CLK_SetSysClkSource(CLKSysSrcMPLL);

  // Set power mode
-  power_mode_update_post(POWER_MODE_SYSTEM_CLOCK);
-  #undef POWER_MODE_SYSTEM_CLOCK
+  power_mode_update_post(sysclock);
 }

 #endif // ARDUINO_ARCH_HC32
@@ -38,44 +38,48 @@ extern Timer0 step_timer;
 // Timer Configurations
 //

-// TODO: some calculations (step irq min_step_rate) require the timer rate to be known at compile time
-//       this is not possible with the HC32F460, as the timer rate depends on PCLK1
-//       as a workaround, PCLK1 = 50MHz is assumed (check with clock dump in MarlinHAL::init())
-#define HAL_TIMER_RATE 50000000 // 50MHz
-// #define HAL_TIMER_RATE TIMER0_BASE_FREQUENCY
-
-// TODO: CYCLES_PER_MICROSECOND seems to be used by Marlin to calculate the number of cycles per microsecond in the timer ISRs
-//       by default, it uses F_CPU, but since that is not known at compile time for HC32, we overwrite it here
-#undef CYCLES_PER_MICROSECOND
-#define CYCLES_PER_MICROSECOND (HAL_TIMER_RATE / 1000000UL)
+/**
+ * HAL_TIMER_RATE must be known at compile time since it's used to calculate
+ * STEPPER_TIMER_RATE, which is used in 'constexpr' calculations.
+ * On the HC32F460 the timer rate depends on PCLK1, which is derived from the
+ * system clock configured at runtime. As a workaround, we use the existing
+ * assumption of a 200MHz clock, defining F_CPU as 200000000, then configure PCLK1
+ * as F_CPU with a divider of 4 in 'sysclock.cpp::core_hook_sysclock_init'.
+ *
+ * If you face issues with this assumption, please double-check with the values
+ * printed by 'MarlinHAL::HAL_clock_frequencies_dump'.
+ *
+ * TODO: If the 'constexpr' requirement is ever lifted, use TIMER0_BASE_FREQUENCY instead
+ */
+#define HAL_TIMER_RATE (F_CPU / 4) // i.e., 50MHz
+//#define HAL_TIMER_RATE TIMER0_BASE_FREQUENCY

 // Temperature timer
-#define TEMP_TIMER_NUM (&temp_timer)
-#define TEMP_TIMER_PRIORITY DDL_IRQ_PRIORITY_02
-#define TEMP_TIMER_PRESCALE 16ul
-#define TEMP_TIMER_RATE 1000                 // 1kHz
-#define TEMP_TIMER_FREQUENCY TEMP_TIMER_RATE // Alias for Marlin
+#define TEMP_TIMER_NUM        (&temp_timer)
+#define TEMP_TIMER_PRIORITY   DDL_IRQ_PRIORITY_02
+#define TEMP_TIMER_PRESCALE     16UL          // 12.5MHz
+#define TEMP_TIMER_RATE       1000            // 1kHz
+#define TEMP_TIMER_FREQUENCY  TEMP_TIMER_RATE // 1kHz also

 // Stepper timer
-#define STEP_TIMER_NUM (&step_timer)
-#define STEP_TIMER_PRIORITY DDL_IRQ_PRIORITY_01
-#define STEPPER_TIMER_PRESCALE 16ul
+#define STEP_TIMER_NUM         (&step_timer)
+#define STEP_TIMER_PRIORITY    DDL_IRQ_PRIORITY_00  // Top priority, nothing else uses it
+#define STEPPER_TIMER_PRESCALE  16UL                // 12.5MHz

-// TODO: STEPPER_TIMER_RATE seems to work fine like this, but requires further testing...
-#define STEPPER_TIMER_RATE (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE) // 50MHz / 16 = 3.125MHz
-#define STEPPER_TIMER_TICKS_PER_US (STEPPER_TIMER_RATE / 1000000)
+#define STEPPER_TIMER_RATE (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE)  // 50MHz / 16 = 3.125MHz
+#define STEPPER_TIMER_TICKS_PER_US (STEPPER_TIMER_RATE / 1000000UL)   // Integer 3

 // Pulse timer (== stepper timer)
-#define PULSE_TIMER_NUM STEP_TIMER_NUM
-#define PULSE_TIMER_PRESCALE STEPPER_TIMER_PRESCALE
-#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
+#define PULSE_TIMER_NUM           STEP_TIMER_NUM
+#define PULSE_TIMER_PRESCALE      STEPPER_TIMER_PRESCALE
+#define PULSE_TIMER_TICKS_PER_US  STEPPER_TIMER_TICKS_PER_US

 //
 // Channel aliases
 //
-#define MF_TIMER_TEMP TEMP_TIMER_NUM
-#define MF_TIMER_STEP STEP_TIMER_NUM
-#define MF_TIMER_PULSE PULSE_TIMER_NUM
+#define MF_TIMER_TEMP   TEMP_TIMER_NUM
+#define MF_TIMER_STEP   STEP_TIMER_NUM
+#define MF_TIMER_PULSE  PULSE_TIMER_NUM

 //
 // HAL functions
@@ -37,7 +37,10 @@ Timer::Timer() {
 }

 Timer::~Timer() {
-  timer_delete(timerid);
+  if (timerid != 0) {
+    timer_delete(timerid);
+    timerid = 0;
+  }
 }

 void Timer::init(uint32_t sig_id, uint32_t sim_freq, callback_fn* fn) {
@@ -21,6 +21,7 @@
 */

 #ifdef __PLAT_LINUX__
+#ifndef UNIT_TEST

 //#define GPIO_LOGGING // Full GPIO and Positional Logging

@@ -135,4 +136,5 @@ int main() {
  read_serial.join();
 }

+#endif // UNIT_TEST
 #endif // __PLAT_LINUX__
@@ -0,0 +1,125 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#ifdef TARGET_LPC4078
+
+#include "../../inc/MarlinConfig.h"
+#include "../shared/Delay.h"
+#include "../../../gcode/parser.h"
+
+DefaultSerial1 USBSerial(false, MCDCSerial0);
+
+uint32_t MarlinHAL::adc_result = 0;
+
+// U8glib required functions
+extern "C" {
+  void u8g_xMicroDelay(uint16_t val) { DELAY_US(val); }
+  void u8g_MicroDelay()              { u8g_xMicroDelay(1); }
+  void u8g_10MicroDelay()            { u8g_xMicroDelay(10); }
+  void u8g_Delay(uint16_t val)       { delay(val); }
+}
+
+// return free heap space
+int freeMemory() {
+  char stack_end;
+  void *heap_start = malloc(sizeof(uint32_t));
+  if (heap_start == 0) return 0;
+
+  uint32_t result = (uint32_t)&stack_end - (uint32_t)heap_start;
+  free(heap_start);
+  return result;
+}
+
+void MarlinHAL::reboot() { MCUCore::nvic_system_reset(); }
+
+uint8_t MarlinHAL::get_reset_source() {
+  #if ENABLED(USE_WATCHDOG)
+    if (watchdog_timed_out()) return RST_WATCHDOG;
+  #endif
+  return RST_POWER_ON;
+}
+
+void MarlinHAL::clear_reset_source() { watchdog_clear_timeout_flag(); }
+
+void flashFirmware(const int16_t) {
+  delay(500);          // Give OS time to disconnect
+  //USB_Connect(false);  // USB clear connection
+  delay(1000);         // Give OS time to notice
+  hal.reboot();
+}
+
+#if ENABLED(USE_WATCHDOG)
+
+  #define WDT_TIMEOUT TERN(WATCHDOG_DURATION_8S, 8.0f, 4.0f) // 4 or 8 second timeout
+
+  void MarlinHAL::watchdog_init() {
+    #if ENABLED(WATCHDOG_RESET_MANUAL)
+      // We enable the watchdog timer, but only for the interrupt.
+
+      // Configure WDT to only trigger an interrupt
+      // Disable WDT interrupt (just in case, to avoid triggering it!)
+      NVIC_DisableIRQ(WDT_IRQn);
+
+      // We NEED memory barriers to ensure Interrupts are actually disabled!
+      // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
+      __DSB();
+      __ISB();
+
+      // WDT defaults to trigger an interrupt
+
+      // Configure and enable WDT interrupt.
+      NVIC_ClearPendingIRQ(WDT_IRQn);
+      NVIC_SetPriority(WDT_IRQn, 0); // Use highest priority, so we detect all kinds of lockups
+      NVIC_EnableIRQ(WDT_IRQn);
+    #else
+      MCUI::watchdog_set_timeout_triggers_reset();
+    #endif
+    MCUI::watchdog_set_timeout_in_seconds(WDT_TIMEOUT);
+    MCUI::watchdog_enable();
+  }
+
+  void MarlinHAL::watchdog_refresh() {
+    MCUI::watchdog_feed();
+    #if DISABLED(PINS_DEBUGGING) && PIN_EXISTS(LED)
+      static millis_t next_flash = millis();
+      if (ELAPSED(millis(), next_flash)) {
+        next_flash = millis() + 200;
+        TOGGLE(LED_PIN);  // heartbeat indicator
+      }
+    #endif
+  }
+
+  // Timeout state
+  bool MarlinHAL::watchdog_timed_out() { return MCUI::watchdog_has_triggered(); }
+  void MarlinHAL::watchdog_clear_timeout_flag() { MCUI::watchdog_clear_timeout_flag(); }
+
+#endif // USE_WATCHDOG
+
+// For M42/M43, scan command line for pin code
+//   return index into pin map array if found and the pin is valid.
+//   return dval if not found or not a valid pin.
+int16_t PARSED_PIN_INDEX(const char code, const int16_t dval) {
+  const uint16_t val = (uint16_t)parser.intval(code, -1), port = val / 100, pin = val % 100;
+  const  int16_t ind = (port < ((NUM_DIGITAL_PINS) >> 5) && pin < 32) ? ((port << 5) | pin) : -2;
+  return ind > -1 ? ind : dval;
+}
+
+#endif // TARGET_LPC4078
@@ -0,0 +1,276 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * HAL_LPC1768/HAL.h
+ * Hardware Abstraction Layer for NXP LPC1768
+ */
+
+#define CPU_32_BIT
+
+#include <stdint.h>
+#include <stdarg.h>
+#include <algorithm>
+
+#include "../shared/Marduino.h"
+#include "../shared/Delay.h"
+#include "../shared/math_32bit.h"
+#include "../shared/HAL_SPI.h"
+#include "fastio.h"
+#include "MarlinSerial.h"
+
+#include <mcu_interface.h>
+
+// ------------------------
+// Serial ports
+// ------------------------
+
+typedef ForwardSerial1Class< decltype(MCDCSerial0) > DefaultSerial1;
+extern DefaultSerial1 USBSerial;
+
+#define _MSERIAL(X) MSerial##X
+#define MSERIAL(X) _MSERIAL(X)
+
+#if SERIAL_PORT == -1
+  #define MYSERIAL1 USBSerial
+#elif WITHIN(SERIAL_PORT, 0, 3)
+  #define MYSERIAL1 MSERIAL(SERIAL_PORT)
+#else
+  #error "SERIAL_PORT must be from 0 to 3. You can also use -1 if the board supports Native USB."
+#endif
+
+#ifdef SERIAL_PORT_2
+  #if SERIAL_PORT_2 == -1
+    #define MYSERIAL2 USBSerial
+  #elif WITHIN(SERIAL_PORT_2, 0, 3)
+    #define MYSERIAL2 MSERIAL(SERIAL_PORT_2)
+  #else
+    #error "SERIAL_PORT_2 must be from 0 to 3. You can also use -1 if the board supports Native USB."
+  #endif
+#endif
+
+#ifdef SERIAL_PORT_3
+  #if SERIAL_PORT_3 == -1
+    #define MYSERIAL3 USBSerial
+  #elif WITHIN(SERIAL_PORT_3, 0, 3)
+    #define MYSERIAL3 MSERIAL(SERIAL_PORT_3)
+  #else
+    #error "SERIAL_PORT_3 must be from 0 to 3. You can also use -1 if the board supports Native USB."
+  #endif
+#endif
+
+#ifdef MMU2_SERIAL_PORT
+  #if MMU2_SERIAL_PORT == -1
+    #define MMU2_SERIAL USBSerial
+  #elif WITHIN(MMU2_SERIAL_PORT, 0, 3)
+    #define MMU2_SERIAL MSERIAL(MMU2_SERIAL_PORT)
+  #else
+    #error "MMU2_SERIAL_PORT must be from 0 to 3. You can also use -1 if the board supports Native USB."
+  #endif
+#endif
+
+#ifdef LCD_SERIAL_PORT
+  #if LCD_SERIAL_PORT == -1
+    #define LCD_SERIAL USBSerial
+  #elif WITHIN(LCD_SERIAL_PORT, 0, 3)
+    #define LCD_SERIAL MSERIAL(LCD_SERIAL_PORT)
+  #else
+    #error "LCD_SERIAL_PORT must be from 0 to 3. You can also use -1 if the board supports Native USB."
+  #endif
+  #if HAS_DGUS_LCD
+    #define SERIAL_GET_TX_BUFFER_FREE() LCD_SERIAL.available()
+  #endif
+#endif
+
+//
+// Interrupts
+//
+
+#define CRITICAL_SECTION_START()  const bool irqon = !MCUCore::primask(); MCUCore::nvic_interrupts_disable()
+#define CRITICAL_SECTION_END()    if (irqon) MCUCore::nvic_interrupts_enable()
+#define cli() noInterrupts()
+#define sei() interrupts()
+//
+// ADC
+//
+
+#define ADC_MEDIAN_FILTER_SIZE (23) // Higher values increase step delay (phase shift),
+                                    // (ADC_MEDIAN_FILTER_SIZE + 1) / 2 sample step delay (12 samples @ 500Hz: 24ms phase shift)
+                                    // Memory usage per ADC channel (bytes): (6 * ADC_MEDIAN_FILTER_SIZE) + 16
+                                    // 8 * ((6 * 23) + 16 ) = 1232 Bytes for 8 channels
+
+#define ADC_LOWPASS_K_VALUE    (2)  // Higher values increase rise time
+                                    // Rise time sample delays for 100% signal convergence on full range step
+                                    // (1 : 13, 2 : 32, 3 : 67, 4 : 139, 5 : 281, 6 : 565, 7 : 1135, 8 : 2273)
+                                    // K = 6, 565 samples, 500Hz sample rate, 1.13s convergence on full range step
+                                    // Memory usage per ADC channel (bytes): 4 (32 Bytes for 8 channels)
+
+#define HAL_ADC_VREF            3.3 // ADC voltage reference
+
+#define HAL_ADC_RESOLUTION     12   // 15 bit maximum, raw temperature is stored as int16_t
+#define HAL_ADC_FILTERED            // Disable oversampling done in Marlin as ADC values already filtered in HAL
+
+//
+// Pin Mapping for M42, M43, M226
+//
+
+// Test whether the pin is valid
+constexpr bool VALID_PIN(const pin_t pin) {
+  return MCUI::pin_is_valid(pin);
+}
+
+// Get the analog index for a digital pin
+constexpr int8_t DIGITAL_PIN_TO_ANALOG_PIN(const pin_t pin) {
+  return (MCUI::pin_is_valid(pin) && MCUI::pin_has_adc(pin)) ? pin : -1;
+}
+
+//
+// Misc. Functions
+//
+#ifndef analogInputToDigitalPin
+  #define analogInputToDigitalPin(p) (p)
+#endif
+
+
+// Return the index of a pin number
+constexpr int16_t GET_PIN_MAP_INDEX(const pin_t pin) {
+  return MCUI::pin_index(pin);
+}
+
+// Get the pin number at the given index
+constexpr pin_t GET_PIN_MAP_PIN(const int16_t index) {
+  return MCUI::pin_index(index);
+}
+
+// Parse a G-code word into a pin index
+int16_t PARSED_PIN_INDEX(const char code, const int16_t dval);
+// P0.6 thru P0.9 are for the onboard SD card
+#define HAL_SENSITIVE_PINS P0_06, P0_07, P0_08, P0_09,
+
+// ------------------------
+// Defines
+// ------------------------
+
+void flashFirmware(const int16_t);
+
+#define HAL_CAN_SET_PWM_FREQ   // This HAL supports PWM Frequency adjustment
+
+// Default graphical display delays
+#define CPU_ST7920_DELAY_1 600
+#define CPU_ST7920_DELAY_2 750
+#define CPU_ST7920_DELAY_3 750
+
+// ------------------------
+// Free Memory Accessor
+// ------------------------
+
+#pragma GCC diagnostic push
+#if GCC_VERSION <= 50000
+  #pragma GCC diagnostic ignored "-Wunused-function"
+#endif
+
+int freeMemory();
+
+#pragma GCC diagnostic pop
+
+// ------------------------
+// MarlinHAL Class
+// ------------------------
+
+class MarlinHAL {
+public:
+
+  // Earliest possible init, before setup()
+  MarlinHAL() {}
+
+  static void init();          // Called early in setup()
+  static void init_board() {}  // Called less early in setup()
+  static void reboot();        // Restart the firmware from 0x0
+
+  // Interrupts
+  static bool isr_state() { return MCUCore::primask(); }
+  static void isr_on()  { MCUCore::nvic_interrupts_enable(); }
+  static void isr_off() {  MCUCore::nvic_interrupts_disable(); }
+
+  static void delay_ms(const int ms) { DELAY_US(ms * 1000); }
+
+  // Watchdog
+  static void watchdog_init() IF_DISABLED(USE_WATCHDOG, {});
+  static void watchdog_refresh() IF_DISABLED(USE_WATCHDOG, {});
+  static bool watchdog_timed_out() IF_DISABLED(USE_WATCHDOG, { return false; });
+  static void watchdog_clear_timeout_flag() IF_DISABLED(USE_WATCHDOG, {});
+
+  // Tasks, called from idle()
+  static void idletask();
+
+  // Reset
+  static uint8_t get_reset_source();
+  static void clear_reset_source();
+
+  // Free SRAM
+  static int freeMemory() { return ::freeMemory(); }
+
+  //
+  // ADC Methods
+  //
+
+  using FilteredADC = MCUI::ADC<ADC_LOWPASS_K_VALUE, ADC_MEDIAN_FILTER_SIZE>;
+
+  // Called by Temperature::init once at startup
+  static void adc_init() {
+    // Turn on and initialise ADC in burst mode
+    MCUI::adc_hardware.init();
+    MCUI::adc_hardware.burst_start();
+  }
+
+  // Called by Temperature::init for each sensor at startup
+  static void adc_enable(const pin_t pin) {
+    FilteredADC::enable_channel(pin);
+  }
+
+  // Begin ADC sampling on the given pin. Called from Temperature::isr!
+  static uint32_t adc_result;
+  static void adc_start(const pin_t pin) {
+    adc_result = FilteredADC::read(pin) >> (16 - HAL_ADC_RESOLUTION); // returns 16bit value, reduce to required bits
+  }
+
+  // Is the ADC ready for reading?
+  static bool adc_ready() { return true; }
+
+  // The current value of the ADC register
+  static uint16_t adc_value() { return uint16_t(adc_result); }
+
+  /**
+   * Set the PWM duty cycle for the pin to the given value.
+   * Optionally invert the duty cycle [default = false]
+   * Optionally change the scale of the provided value to enable finer PWM duty control [default = 255]
+   */
+  static void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size=255, const bool invert=false);
+
+  /**
+   * Set the frequency of the timer corresponding to the provided pin
+   * All Hardware PWM pins will run at the same frequency and
+   * All Software PWM pins will run at the same frequency
+   */
+  static void set_pwm_frequency(const pin_t pin, const uint16_t f_desired);
+};
@@ -0,0 +1,376 @@
+// /**
+//  * Marlin 3D Printer Firmware
+//  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+//  *
+//  * Based on Sprinter and grbl.
+//  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+//  *
+//  * This program is free software: you can redistribute it and/or modify
+//  * it under the terms of the GNU General Public License as published by
+//  * the Free Software Foundation, either version 3 of the License, or
+//  * (at your option) any later version.
+//  *
+//  * This program is distributed in the hope that it will be useful,
+//  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  * GNU General Public License for more details.
+//  *
+//  * You should have received a copy of the GNU General Public License
+//  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+//  *
+//  */
+
+// /**
+//  * Software SPI functions originally from Arduino Sd2Card Library
+//  * Copyright (c) 2009 by William Greiman
+//  */
+
+// /**
+//  * For TARGET_LPC4078
+//  */
+
+// /**
+//  * Hardware SPI and Software SPI implementations are included in this file.
+//  * The hardware SPI runs faster and has higher throughput but is not compatible
+//  * with some LCD interfaces/adapters.
+//  *
+//  * Control of the slave select pin(s) is handled by the calling routines.
+//  *
+//  * Some of the LCD interfaces/adapters result in the LCD SPI and the SD card
+//  * SPI sharing pins. The SCK, MOSI & MISO pins can NOT be set/cleared with
+//  * WRITE nor digitalWrite when the hardware SPI module within the LPC17xx is
+//  * active. If any of these pins are shared then the software SPI must be used.
+//  *
+//  * A more sophisticated hardware SPI can be found at the following link.
+//  * This implementation has not been fully debugged.
+//  * https://github.com/MarlinFirmware/Marlin/tree/071c7a78f27078fd4aee9a3ef365fcf5e143531e
+//  */
+
+#ifdef TARGET_LPC4078
+
+#include "../../inc/MarlinConfig.h"
+#include <SPI.h>
+
+// Hardware SPI and SPIClass
+
+#include "../shared/HAL_SPI.h"
+
+#define LPC_SOFTWARE_SPI
+
+// ------------------------
+// Public functions
+// ------------------------
+#if ENABLED(LPC_SOFTWARE_SPI)
+  #include "SoftwareSPI.h"
+
+  // Software SPI
+  static uint8_t SPI_speed = SPI_FULL_SPEED;
+
+  static uint8_t spiTransfer(uint8_t b) {
+    return swSpiTransfer(b, SPI_speed, SD_SCK_PIN, SD_MISO_PIN, SD_MOSI_PIN);
+  }
+
+  void spiBegin() {
+    swSpiBegin(SD_SCK_PIN, SD_MISO_PIN, SD_MOSI_PIN);
+  }
+
+  void spiInit(uint8_t spiRate) {
+    SPI_speed = swSpiInit(spiRate, SD_SCK_PIN, SD_MOSI_PIN);
+  }
+
+  uint8_t spiRec() { return spiTransfer(0xFF); }
+
+  void spiRead(uint8_t*buf, uint16_t nbyte) {
+    for (int i = 0; i < nbyte; i++)
+      buf[i] = spiTransfer(0xFF);
+  }
+
+  void spiSend(uint8_t b) { (void)spiTransfer(b); }
+
+  void spiSend(const uint8_t *buf, size_t nbyte) {
+    for (uint16_t i = 0; i < nbyte; i++)
+      (void)spiTransfer(buf[i]);
+  }
+
+  void spiSendBlock(uint8_t token, const uint8_t *buf) {
+    (void)spiTransfer(token);
+    for (uint16_t i = 0; i < 512; i++)
+      (void)spiTransfer(buf[i]);
+  }
+
+#else
+
+  #ifdef SD_SPI_SPEED
+    #define INIT_SPI_SPEED SD_SPI_SPEED
+  #else
+    #define INIT_SPI_SPEED SPI_FULL_SPEED
+  #endif
+
+  void spiBegin() { spiInit(INIT_SPI_SPEED); } // Set up SCK, MOSI & MISO pins for SSP0
+
+  void spiInit(uint8_t spiRate) {
+    #if SD_MISO_PIN == BOARD_SPI1_MISO_PIN
+      SPI.setModule(1);
+    #elif SD_MISO_PIN == BOARD_SPI2_MISO_PIN
+      SPI.setModule(2);
+    #endif
+    SPI.setDataSize(DATA_SIZE_8BIT);
+    SPI.setDataMode(SPI_MODE0);
+
+    SPI.setClock(SPISettings::spiRate2Clock(spiRate));
+    SPI.begin();
+  }
+
+  static uint8_t doio(uint8_t b) {
+    return SPI.transfer(b & 0x00FF) & 0x00FF;
+  }
+
+  void spiSend(uint8_t b) { doio(b); }
+
+  void spiSend(const uint8_t *buf, size_t nbyte) {
+    for (uint16_t i = 0; i < nbyte; i++) doio(buf[i]);
+  }
+
+  void spiSend(uint32_t chan, byte b) {}
+
+  void spiSend(uint32_t chan, const uint8_t *buf, size_t nbyte) {}
+
+  // Read single byte from SPI
+  uint8_t spiRec() { return doio(0xFF); }
+
+  uint8_t spiRec(uint32_t chan) { return 0; }
+
+  // Read from SPI into buffer
+  void spiRead(uint8_t *buf, uint16_t nbyte) {
+    for (uint16_t i = 0; i < nbyte; i++) buf[i] = doio(0xFF);
+  }
+
+  uint8_t spiTransfer(uint8_t b) { return doio(b); }
+
+  // Write from buffer to SPI
+  void spiSendBlock(uint8_t token, const uint8_t *buf) {
+   (void)spiTransfer(token);
+    for (uint16_t i = 0; i < 512; i++)
+      (void)spiTransfer(buf[i]);
+  }
+
+  // Begin SPI transaction, set clock, bit order, data mode
+  void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) {
+    // TODO: Implement this method
+  }
+
+#endif // LPC_SOFTWARE_SPI
+
+// /**
+//  * @brief Wait until TXE (tx empty) flag is set and BSY (busy) flag unset.
+//  */
+static inline void waitSpiTxEnd(void *spi_d) {
+  // while (SSP_GetStatus(spi_d, SSP_STAT_TXFIFO_EMPTY) == RESET) { /* nada */ } // wait until TXE=1
+  // while (SSP_GetStatus(spi_d, SSP_STAT_BUSY) == SET) { /* nada */ }     // wait until BSY=0
+}
+
+// // Retain the pin init state of the SPI, to avoid init more than once,
+// // even if more instances of SPIClass exist
+static bool spiInitialised[BOARD_NR_SPI] = {};
+
+SPIClass::SPIClass(uint8_t device) {
+//   // Init things specific to each SPI device
+//   // clock divider setup is a bit of hack, and needs to be improved at a later date.
+
+  #if BOARD_NR_SPI >= 1
+    _settings[0].device_id = 0;
+    _settings[0].m_config.pin_miso = BOARD_SPI1_MISO_PIN;
+    _settings[0].m_config.pin_mosi = BOARD_SPI1_MOSI_PIN;
+    _settings[0].m_config.pin_sck  = BOARD_SPI1_SCK_PIN;
+    _settings[0].m_config.pin_ssel = BOARD_SPI1_NSS_PIN;
+    _settings[0].m_config.frequency = 100000;
+    _settings[0].m_config.data_bits = 8;
+    _settings[0].m_config.mode = 0;
+    _settings[0].m_config.format = MCUI::SSP::Config::Format::SPI;
+
+
+//     _settings[0].dataMode = SPI_MODE0;
+//     _settings[0].dataSize = DATA_SIZE_8BIT;
+//     _settings[0].clock = SPI_CLOCK_MAX;
+//     //_settings[0].clockDivider = determine_baud_rate(_settings[0].spi_d, _settings[0].clock);
+  #endif
+
+  #if BOARD_NR_SPI >= 2
+    _settings[1].device_id = 2;
+    _settings[1].m_config.pin_miso = BOARD_SPI2_MISO_PIN;
+    _settings[1].m_config.pin_mosi = BOARD_SPI2_MOSI_PIN;
+    _settings[1].m_config.pin_sck  = BOARD_SPI2_SCK_PIN;
+    _settings[1].m_config.pin_ssel = BOARD_SPI2_NSS_PIN;
+//     _settings[1].dataMode = SPI_MODE0;
+//     _settings[1].dataSize = DATA_SIZE_8BIT;
+//     _settings[1].clock = SPI_CLOCK_MAX;
+//     //_settings[1].clockDivider = determine_baud_rate(_settings[1].spi_d, _settings[1].clock);
+  #endif
+
+  #if BOARD_NR_SPI >= 3
+    _settings[2].device_id = 1;
+    _settings[2].m_config.pin_miso = BOARD_SPI3_MISO_PIN;
+    _settings[2].m_config.pin_mosi = BOARD_SPI3_MOSI_PIN;
+    _settings[2].m_config.pin_sck  = BOARD_SPI3_SCK_PIN;
+    _settings[2].m_config.pin_ssel = BOARD_SPI3_NSS_PIN;
+//     _settings[1].dataMode = SPI_MODE0;
+//     _settings[1].dataSize = DATA_SIZE_8BIT;
+//     _settings[1].clock = SPI_CLOCK_MAX;
+//     //_settings[1].clockDivider = determine_baud_rate(_settings[1].spi_d, _settings[1].clock);
+  #endif
+
+  setModule(device);
+
+//   // Init the GPDMA controller
+//   // TODO: call once in the constructor? or each time?
+//   GPDMA_Init();
+}
+
+SPIClass::SPIClass(pin_t mosi, pin_t miso, pin_t sclk, pin_t ssel) {
+  #if BOARD_NR_SPI >= 1
+    if (mosi == BOARD_SPI1_MOSI_PIN) SPIClass(1);
+  #endif
+  #if BOARD_NR_SPI >= 2
+    if (mosi == BOARD_SPI2_MOSI_PIN) SPIClass(2);
+  #endif
+  #if BOARD_NR_SPI >= 3
+    if (mosi == BOARD_SPI3_MOSI_PIN) SPIClass(3);
+  #endif
+}
+
+void SPIClass::begin() {
+//   // Init the SPI pins in the first begin call
+  if ((_currentSetting->device_id == 0 && spiInitialised[0] == false) ||
+      (_currentSetting->device_id == 1 && spiInitialised[1] == false) ||
+      (_currentSetting->device_id == 2 && spiInitialised[2] == false)) {
+    MCUI::SSP::init(_currentSetting->device_id, _currentSetting->m_config);
+    spiInitialised[_currentSetting->device_id] = true;
+  }
+  updateSettings();
+}
+
+void SPIClass::beginTransaction(const SPISettings &cfg) {
+  setBitOrder(cfg.bitOrder);
+  setDataMode(cfg.dataMode);
+  setDataSize(cfg.dataSize);
+  //setClockDivider(determine_baud_rate(_currentSetting->spi_d, settings.clock));
+  begin();
+}
+
+uint8_t SPIClass::transfer(const uint16_t b) {
+  uint16_t rx_word = 0;
+  // clear rx fifo
+  while(MCUI::SSP::read(_currentSetting->device_id, &rx_word) == 1);
+  MCUI::SSP::write(_currentSetting->device_id, b);
+  while(MCUI::SSP::read(_currentSetting->device_id, &rx_word) != 1);
+  return rx_word;
+}
+
+uint16_t SPIClass::transfer16(const uint16_t data) {
+   return (transfer((data >> 8) & 0xFF) << 8) | (transfer(data & 0xFF) & 0xFF);
+}
+
+void SPIClass::end() {
+//   // Neither is needed for Marlin
+//   //SSP_Cmd(_currentSetting->spi_d, DISABLE);
+//   //SSP_DeInit(_currentSetting->spi_d);
+}
+
+void SPIClass::send(uint8_t data) {
+  MCUI::SSP::write(_currentSetting->device_id, data);
+}
+
+void SPIClass::dmaSend(void *buf, uint16_t length, bool minc) {
+//   //TODO: LPC dma can only write 0xFFF bytes at once.
+//   GPDMA_Channel_CFG_Type GPDMACfg;
+
+//   /* Configure GPDMA channel 0 -------------------------------------------------------------*/
+//   /* DMA Channel 0 */
+//   GPDMACfg.ChannelNum = 0;
+//   // Source memory
+//   GPDMACfg.SrcMemAddr = (uint32_t)buf;
+//   // Destination memory - Not used
+//   GPDMACfg.DstMemAddr = 0;
+//   // Transfer size
+//   GPDMACfg.TransferSize = length;
+//   // Transfer width
+//   GPDMACfg.TransferWidth = (_currentSetting->dataSize == DATA_SIZE_16BIT) ? GPDMA_WIDTH_HALFWORD : GPDMA_WIDTH_BYTE;
+//   // Transfer type
+//   GPDMACfg.TransferType = GPDMA_TRANSFERTYPE_M2P;
+//   // Source connection - unused
+//   GPDMACfg.SrcConn = 0;
+//   // Destination connection
+//   GPDMACfg.DstConn = (_currentSetting->spi_d == LPC_SSP0) ? GPDMA_CONN_SSP0_Tx : GPDMA_CONN_SSP1_Tx;
+
+//   GPDMACfg.DMALLI = 0;
+
+//   // Enable dma on SPI
+//   SSP_DMACmd(_currentSetting->spi_d, SSP_DMA_TX, ENABLE);
+
+//   // Only increase memory if minc is true
+//   GPDMACfg.MemoryIncrease = (minc ? GPDMA_DMACCxControl_SI : 0);
+
+//   // Setup channel with given parameter
+//   GPDMA_Setup(&GPDMACfg);
+
+//   // Enable DMA
+//   GPDMA_ChannelCmd(0, ENABLE);
+
+//   // Wait for data transfer
+//   while (!GPDMA_IntGetStatus(GPDMA_STAT_RAWINTTC, 0) && !GPDMA_IntGetStatus(GPDMA_STAT_RAWINTERR, 0)) { }
+
+//   // Clear err and int
+//   GPDMA_ClearIntPending (GPDMA_STATCLR_INTTC, 0);
+//   GPDMA_ClearIntPending (GPDMA_STATCLR_INTERR, 0);
+
+//   // Disable DMA
+//   GPDMA_ChannelCmd(0, DISABLE);
+
+//   waitSpiTxEnd(_currentSetting->spi_d);
+
+//   SSP_DMACmd(_currentSetting->spi_d, SSP_DMA_TX, DISABLE);
+}
+
+uint16_t SPIClass::read() {
+  uint16_t rx_word = 0;
+  MCUI::SSP::read(_currentSetting->device_id, &rx_word);
+  return rx_word;
+}
+
+void SPIClass::read(uint8_t *buf, uint32_t len) {
+  uint16_t rx_word = 0;
+  // clear rx fifo
+  while(MCUI::SSP::read(_currentSetting->device_id, &rx_word) == 1);
+  for (uint16_t i = 0; i < len; i++) {
+    MCUI::SSP::write(_currentSetting->device_id, 0xFF);
+    while(MCUI::SSP::read(_currentSetting->device_id, &rx_word) != 1);
+    buf[i] = rx_word;
+  }
+}
+
+void SPIClass::setClock(uint32_t clock) { _currentSetting->clock = clock; }
+
+void SPIClass::setModule(uint8_t device) { _currentSetting = &_settings[device - 1]; } // SPI channels are called 1, 2, and 3 but the array is zero-indexed
+
+void SPIClass::setBitOrder(uint8_t bitOrder) { _currentSetting->bitOrder = bitOrder; }
+
+void SPIClass::setDataMode(uint8_t dataMode) { _currentSetting->dataMode = dataMode; }
+
+void SPIClass::setDataSize(uint32_t dataSize) { _currentSetting->dataSize = dataSize; }
+
+// /**
+//  * Set up/tear down
+//  */
+void SPIClass::updateSettings() {
+  MCUI::SSP::configure(_currentSetting->device_id, _currentSetting->m_config);
+}
+
+SPIClass SPI(1);
+
+#if SD_MISO_PIN == BOARD_SPI1_MISO_PIN
+  SPIClass SPI(1);
+#elif SD_MISO_PIN == BOARD_SPI2_MISO_PIN
+  SPIClass SPI(2);
+#endif
+
+#endif // TARGET_LPC4078
@@ -0,0 +1,45 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include <SPI.h>
+
+/**
+ * Marlin currently requires 3 SPI classes:
+ *
+ * SPIClass:
+ *  This class is normally provided by frameworks and has a semi-default interface.
+ *  This is needed because some libraries reference it globally.
+ *
+ * SPISettings:
+ *  Container for SPI configs for SPIClass. As above, libraries may reference it globally.
+ *
+ * These two classes are often provided by frameworks so we cannot extend them to add
+ * useful methods for Marlin.
+ *
+ * MarlinSPI:
+ *  Provides the default SPIClass interface plus some Marlin goodies such as a simplified
+ *  interface for SPI DMA transfer.
+ *
+ */
+
+using MarlinSPI = SPIClass;
@@ -0,0 +1,78 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#ifdef TARGET_LPC4078
+
+#include "MarlinSerial.h"
+
+#include "../../inc/MarlinConfig.h"
+
+MarlinCDCSerial MCDCSerial0;
+
+#define MarlinSerial(ID) \
+  MarlinSerial _MSerial##ID(ID); \
+  MSerialT MSerial##ID(true, _MSerial##ID)
+
+#if USING_HW_SERIAL0
+  MarlinSerial(0);
+#endif
+#if USING_HW_SERIAL1
+  MarlinSerial(1);
+#endif
+#if USING_HW_SERIAL2
+  MarlinSerial(2);
+#endif
+#if USING_HW_SERIAL3
+  MarlinSerial(3);
+#endif
+
+#if ENABLED(EMERGENCY_PARSER)
+
+  bool MarlinSerial::recv_callback(const char c) {
+    // Need to figure out which serial port we are and react in consequence (Marlin does not have CONTAINER_OF macro)
+    if (false) {}
+    #if USING_HW_SERIAL0
+      else if (this == &_MSerial0) emergency_parser.update(MSerial0.emergency_state, c);
+    #endif
+    #if USING_HW_SERIAL1
+      else if (this == &_MSerial1) emergency_parser.update(MSerial1.emergency_state, c);
+    #endif
+    #if USING_HW_SERIAL2
+      else if (this == &_MSerial2) emergency_parser.update(MSerial2.emergency_state, c);
+    #endif
+    #if USING_HW_SERIAL3
+      else if (this == &_MSerial3) emergency_parser.update(MSerial3.emergency_state, c);
+    #endif
+    return true;
+  }
+
+  #include "../../feature/e_parser.h"
+
+  EmergencyParser::State emergency_state;
+
+  bool CDC_RecvCallback(const char c) {
+    emergency_parser.update(emergency_state, c);
+    return true;
+  }
+
+#endif
+
+#endif // TARGET_LPC4078
@@ -0,0 +1,108 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include <mcu_interface.h>
+#include <interface/uart.h>
+#include <driver/usb_cdc.h>
+
+#include <UART.h>
+
+#include "../../inc/MarlinConfigPre.h"
+#if ENABLED(EMERGENCY_PARSER)
+  #include "../../feature/e_parser.h"
+#endif
+#include "../../core/serial_hook.h"
+
+#ifndef SERIAL_PORT
+  #define SERIAL_PORT 0
+#endif
+#ifndef RX_BUFFER_SIZE
+  #define RX_BUFFER_SIZE 128
+#endif
+#ifndef TX_BUFFER_SIZE
+  #define TX_BUFFER_SIZE 32
+#endif
+
+class MarlinCDCSerial : public HardwareSerial {
+  public:
+    MarlinCDCSerial() {}
+    void begin(unsigned long baudrate) override {}
+    void begin(unsigned long baudrate, uint16_t config) override { }
+    void end() override { }
+    int available() override {
+      return MCUI::CDCSerial0::available();
+    }
+    int peek() override { char c = 0; return MCUI::CDCSerial0::peek((uint8_t*)&c)? c : -1; }
+    int read() override { char c = 0; return MCUI::CDCSerial0::read((uint8_t*)&c, 1)? c : -1; }
+    void flush() override {};
+    size_t write(uint8_t c) override { return write(&c, 1); }
+    size_t write(const uint8_t *buffer, size_t size) override { return MCUI::CDCSerial0::connected() ? MCUI::CDCSerial0::write(buffer, size) : 0; }
+    using Print::write;
+    operator bool() override { return true; }
+};
+extern MarlinCDCSerial MCDCSerial0;
+
+class MarlinSerial : public HardwareSerial {
+  public:
+    MarlinSerial(const uint32_t uart_id) : uart_device(uart_id) {}
+    void begin(unsigned long baudrate) override {
+      uart_device.configure_pins(P0_02, P0_03);
+      uart_device.init({ .baud = baudrate });
+      #if ENABLED(EMERGENCY_PARSER)
+      uart_device.set_rx_callback([this](char rx_value){ return this->recv_callback(rx_value); } );
+      #endif
+    }
+    void begin(unsigned long baudrate, uint16_t config) override {
+      begin(baudrate);
+    }
+    void end() override { }
+    int available() override {
+      return uart_device.rx_available();
+    }
+    int peek() override { char c = 0; return uart_device.peek(&c)? c : -1; }
+    int read() override { char c = 0; return uart_device.read(&c)? c : -1; }
+    void flush() override {};
+    size_t write(uint8_t c) override { return write(&c, 1); }
+    size_t write(const uint8_t *buffer, size_t size) override { return uart_device.write((const char *)buffer, size); }
+    using Print::write; // pull in write(str) and write(buf, size) from Print
+    operator bool() override { return true; }
+
+    bool recv_callback(char value);
+  private:
+    MCUI::BufferedUARTC uart_device;
+};
+
+// On LPC176x framework, HardwareSerial does not implement the same interface as Arduino's Serial, so overloads
+// of 'available' and 'read' method are not used in this multiple inheritance scenario.
+// Instead, use a ForwardSerial here that adapts the interface.
+typedef ForwardSerial1Class<MarlinSerial> MSerialT;
+extern MSerialT MSerial0;
+extern MSerialT MSerial1;
+extern MSerialT MSerial2;
+extern MSerialT MSerial3;
+
+// Consequently, we can't use a RuntimeSerial either. The workaround would be to use
+// a RuntimeSerial<ForwardSerial<MarlinSerial>> type here. Ignore for now until it's actually required.
+#if ENABLED(SERIAL_RUNTIME_HOOK)
+  #error "SERIAL_RUNTIME_HOOK is not yet supported for LPC176x."
+#endif
@@ -0,0 +1,51 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#ifdef TARGET_LPC4078
+
+#include "../../inc/MarlinConfig.h"
+#include "HAL.h"
+
+#if ENABLED(POSTMORTEM_DEBUGGING)
+
+#include "../shared/MinSerial.h"
+#include <debug_frmwrk.h>
+
+static void TX(char c) { _DBC(c); }
+void install_min_serial() { HAL_min_serial_out = &TX; }
+
+#if DISABLED(DYNAMIC_VECTORTABLE)
+extern "C" {
+  __attribute__((naked)) void JumpHandler_ASM() {
+    __asm__ __volatile__ (
+      "b CommonHandler_ASM\n"
+    );
+  }
+  void __attribute__((naked, alias("JumpHandler_ASM"))) HardFault_Handler();
+  void __attribute__((naked, alias("JumpHandler_ASM"))) BusFault_Handler();
+  void __attribute__((naked, alias("JumpHandler_ASM"))) UsageFault_Handler();
+  void __attribute__((naked, alias("JumpHandler_ASM"))) MemManage_Handler();
+  void __attribute__((naked, alias("JumpHandler_ASM"))) NMI_Handler();
+}
+#endif
+
+#endif // POSTMORTEM_DEBUGGING
+#endif // TARGET_LPC4078
@@ -0,0 +1,69 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
+ * Copyright (c) 2009 Michael Margolis.  All right reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#pragma once
+
+/**
+ * Based on "servo.h - Interrupt driven Servo library for Arduino using 16 bit timers -
+ *           Version 2 Copyright (c) 2009 Michael Margolis.  All right reserved.
+ *
+ * The only modification was to update/delete macros to match the LPC176x.
+ */
+
+#include <Servo.h>
+
+class libServo: public Servo {
+  public:
+  void move(const int value) {
+    constexpr uint16_t servo_delay[] = SERVO_DELAY;
+    static_assert(COUNT(servo_delay) == NUM_SERVOS, "SERVO_DELAY must be an array NUM_SERVOS long.");
+
+    if (attach(servo_info[servoIndex].Pin.nbr) >= 0) {    // try to reattach
+      write(value);
+      safe_delay(servo_delay[servoIndex]); // delay to allow servo to reach position
+      TERN_(DEACTIVATE_SERVOS_AFTER_MOVE, detach());
+    }
+
+  }
+};
+
+class libServo;
+typedef libServo hal_servo_t;
@@ -0,0 +1,47 @@
+#ifdef TARGET_LPC4078
+
+#include <Arduino.h>
+#include "SoftwareSPI.h"
+
+#include <mcu_interface.h>
+
+uint8_t swSpiTransfer(uint8_t b, const uint8_t spi_speed, const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin) {
+  for (uint8_t i = 0; i < 8; i++) {
+    if (spi_speed == 0) {
+      MCUI::gpio_set(mosi_pin, !!(b & 0x80));
+      MCUI::gpio_set(sck_pin, HIGH);
+      b <<= 1;
+      if (miso_pin >= 0 && MCUI::gpio_get(miso_pin)) b |= 1;
+      MCUI::gpio_set(sck_pin, LOW);
+    }
+    else {
+      const uint8_t state = (b & 0x80) ? HIGH : LOW;
+      for (uint8_t j = 0; j < spi_speed; j++)
+        MCUI::gpio_set(mosi_pin, state);
+
+      for (uint8_t j = 0; j < spi_speed + (miso_pin >= 0 ? 0 : 1); j++)
+        MCUI::gpio_set(sck_pin, HIGH);
+
+      b <<= 1;
+      if (miso_pin >= 0 && MCUI::gpio_get(miso_pin)) b |= 1;
+
+      for (uint8_t j = 0; j < spi_speed; j++)
+        MCUI::gpio_set(sck_pin, LOW);
+    }
+  }
+  return b;
+}
+
+void swSpiBegin(const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin) {
+  pinMode(sck_pin, OUTPUT);
+  if (MCUI::pin_is_valid(miso_pin)) pinMode(miso_pin, INPUT);
+  pinMode(mosi_pin, OUTPUT);
+}
+
+uint8_t swSpiInit(const uint8_t spiRate, const pin_t sck_pin, const pin_t mosi_pin) {
+  MCUI::gpio_set(mosi_pin, HIGH);
+  MCUI::gpio_set(sck_pin, LOW);
+  return (SystemCoreClock == 120000000 ? 44 : 38) / std::pow(2, 6 - std::min(spiRate, (uint8_t)6));
+}
+
+#endif // TARGET_LPC4078
@@ -0,0 +1,5 @@
+#include <mcu_interface.h>
+
+uint8_t swSpiTransfer(uint8_t b, const uint8_t spi_speed, const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin);
+void swSpiBegin(const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin);
+uint8_t swSpiInit(const uint8_t spiRate, const pin_t sck_pin, const pin_t mosi_pin);
@@ -0,0 +1,116 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#ifdef TARGET_LPC4078
+
+/**
+ * Emulate EEPROM storage using Flash Memory
+ *
+ * Use a single 32K flash sector to store EEPROM data. To reduce the
+ * number of erase operations a simple "leveling" scheme is used that
+ * maintains a number of EEPROM "slots" within the larger flash sector.
+ * Each slot is used in turn and the entire sector is only erased when all
+ * slots have been used.
+ *
+ * A simple RAM image is used to hold the EEPROM data during I/O operations
+ * and this is flushed to the next available slot when an update is complete.
+ * If RAM usage becomes an issue we could store this image in one of the two
+ * 16Kb I/O buffers (intended to hold DMA USB and Ethernet data, but currently
+ * unused).
+ */
+#include "../../inc/MarlinConfig.h"
+
+#include "../shared/eeprom_api.h"
+
+//#include <cstdio>
+
+#ifndef MARLIN_EEPROM_SIZE
+  #define MARLIN_EEPROM_SIZE 4032 // 4KB
+#endif
+
+size_t PersistentStore::capacity() { return 4032; }
+
+constexpr uint32_t page_size = MCUI::EEPROM::page_size;
+uint32_t buffered_page = 0;
+uint8_t page_buffer[page_size];
+bool buffered_page_dirty = false;
+
+bool PersistentStore::access_start() {
+  MCUI::EEPROM::init();
+  MCUI::EEPROM::read_page(buffered_page, page_buffer, page_size);
+  return true;
+}
+
+bool PersistentStore::access_finish() {
+  if (buffered_page_dirty) {
+    MCUI::EEPROM::write_page(buffered_page, page_buffer, page_size);
+  }
+  return true;
+}
+
+bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
+  uint32_t address = pos;
+  //printf("Marlin::eeprom::write(pos = %d, size = %d)\n", pos, size);
+  uint32_t value_index = 0;
+  for (uint32_t addr = address; addr < address + size; ++addr) {
+    uint32_t page_address = addr & 0xFFFFFFC0;
+    if (page_address != buffered_page) {
+      //printf("Marlin::eeprom::write(@%ld):: page change new(%ld) != current(%d)\n",addr, page_address, buffered_page);
+      if (buffered_page_dirty == true) MCUI::EEPROM::write_page(buffered_page, page_buffer, page_size);
+      buffered_page = page_address;
+      buffered_page_dirty = false;
+      MCUI::EEPROM::read_page(buffered_page, page_buffer, page_size);
+    }
+    page_buffer[addr & ~0xFFFFFFC0] = value[value_index++];
+    buffered_page_dirty = true;
+  }
+
+  pos += size;
+  crc16(crc, value, size);
+
+  return false;  // return true for any error
+}
+
+bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
+  uint32_t address = pos;
+  //printf("Marlin::eeprom::read(pos = %d, size = %d, writing = %d)\n", pos, size, writing);
+  uint32_t value_index = 0;
+  for (uint32_t addr = address; addr < address + size; ++addr) {
+    uint32_t page_address = addr & 0xFFFFFFC0;
+    if (page_address != buffered_page) {
+      if (buffered_page_dirty) {
+        MCUI::EEPROM::write_page(buffered_page, page_buffer, page_size);
+        buffered_page_dirty = false;
+      }
+      buffered_page = page_address;
+      MCUI::EEPROM::read_page(buffered_page, page_buffer, page_size);
+    }
+    if (writing) value[value_index++] = page_buffer[addr & ~0xFFFFFFC0];
+    else crc16(crc, &page_buffer[addr & ~0xFFFFFFC0], 1);
+  }
+
+  if (writing) crc16(crc, value, size);
+  pos += size;
+
+  return false;  // return true for any error
+}
+
+#endif // TARGET_LPC4078
@@ -0,0 +1,191 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * Endstop Interrupts
+ *
+ * Without endstop interrupts the endstop pins must be polled continually in
+ * the temperature-ISR via endstops.update(), most of the time finding no change.
+ * With this feature endstops.update() is called only when we know that at
+ * least one endstop has changed state, saving valuable CPU cycles.
+ *
+ * This feature only works when all used endstop pins can generate an 'external interrupt'.
+ *
+ * Test whether pins issue interrupts on your board by flashing 'pin_interrupt_test.ino'.
+ * (Located in Marlin/buildroot/share/pin_interrupt_test/pin_interrupt_test.ino)
+ */
+
+#include "../../module/endstops.h"
+
+// One ISR for all EXT-Interrupts
+void endstop_ISR() { endstops.update(); }
+
+void setup_endstop_interrupts() {
+  #define _ATTACH(P) attachInterrupt(digitalPinToInterrupt(P), endstop_ISR, CHANGE)
+  #define LPC1768_PIN_INTERRUPT_M(pin) ((pin >> 0x5 & 0x7) == 0 || (pin >> 0x5 & 0x7) == 2)
+
+  #if HAS_X_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(X_MAX_PIN)
+      #error "X_MAX_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(X_MAX_PIN);
+  #endif
+  #if HAS_X_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(X_MIN_PIN)
+      #error "X_MIN_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(X_MIN_PIN);
+  #endif
+  #if HAS_Y_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(Y_MAX_PIN)
+      #error "Y_MAX_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(Y_MAX_PIN);
+  #endif
+  #if HAS_Y_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(Y_MIN_PIN)
+      #error "Y_MIN_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(Y_MIN_PIN);
+  #endif
+  #if HAS_Z_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(Z_MAX_PIN)
+      #error "Z_MAX_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(Z_MAX_PIN);
+  #endif
+  #if HAS_Z_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(Z_MIN_PIN)
+      #error "Z_MIN_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+     _ATTACH(Z_MIN_PIN);
+  #endif
+  #if HAS_Z2_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(Z2_MAX_PIN)
+      #error "Z2_MAX_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(Z2_MAX_PIN);
+  #endif
+  #if HAS_Z2_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(Z2_MIN_PIN)
+      #error "Z2_MIN_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(Z2_MIN_PIN);
+  #endif
+  #if HAS_Z3_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(Z3_MAX_PIN)
+      #error "Z3_MIN_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(Z3_MAX_PIN);
+  #endif
+  #if HAS_Z3_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(Z3_MIN_PIN)
+      #error "Z3_MIN_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(Z3_MIN_PIN);
+  #endif
+  #if HAS_Z4_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(Z4_MAX_PIN)
+      #error "Z4_MIN_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(Z4_MAX_PIN);
+  #endif
+  #if HAS_Z4_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(Z4_MIN_PIN)
+      #error "Z4_MIN_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(Z4_MIN_PIN);
+  #endif
+  #if HAS_Z_MIN_PROBE_PIN
+    #if !LPC1768_PIN_INTERRUPT_M(Z_MIN_PROBE_PIN)
+      #error "Z_MIN_PROBE_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(Z_MIN_PROBE_PIN);
+  #endif
+  #if HAS_I_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(I_MAX_PIN)
+      #error "I_MAX_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(I_MAX_PIN);
+  #elif HAS_I_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(I_MIN_PIN)
+      #error "I_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(I_MIN_PIN);
+  #endif
+  #if HAS_J_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(J_MAX_PIN)
+      #error "J_MAX_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(J_MAX_PIN);
+  #elif HAS_J_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(J_MIN_PIN)
+      #error "J_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(J_MIN_PIN);
+  #endif
+  #if HAS_K_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(K_MAX_PIN)
+      #error "K_MAX_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(K_MAX_PIN);
+  #elif HAS_K_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(K_MIN_PIN)
+      #error "K_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(K_MIN_PIN);
+  #endif
+  #if HAS_U_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(U_MAX_PIN)
+      #error "U_MAX_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(U_MAX_PIN);
+  #elif HAS_U_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(U_MIN_PIN)
+      #error "U_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(U_MIN_PIN);
+  #endif
+  #if HAS_V_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(V_MAX_PIN)
+      #error "V_MAX_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(V_MAX_PIN);
+  #elif HAS_V_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(V_MIN_PIN)
+      #error "V_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(V_MIN_PIN);
+  #endif
+  #if HAS_W_MAX
+    #if !LPC1768_PIN_INTERRUPT_M(W_MAX_PIN)
+      #error "W_MAX_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(W_MAX_PIN);
+  #elif HAS_W_MIN
+    #if !LPC1768_PIN_INTERRUPT_M(W_MIN_PIN)
+      #error "W_MIN_PIN is not INTERRUPT-capable."
+    #endif
+    _ATTACH(W_MIN_PIN);
+  #endif
+}
@@ -0,0 +1,37 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#ifdef TARGET_LPC4078
+
+#include "../../inc/MarlinConfig.h"
+#include <mcu_interface.h>
+
+void MarlinHAL::set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size/*=255*/, const bool invert/*=false*/) {
+  if (!MCUI::pin_is_valid(pin)) return;
+  if (MCUI::pwm_attach_pin(pin))
+    MCUI::pwm_write_ratio(pin, invert ? 1.0f - (float)v / v_size : (float)v / v_size);  // map 1-254 onto PWM range
+}
+
+void MarlinHAL::set_pwm_frequency(const pin_t pin, const uint16_t f_desired) {
+  MCUI::pwm_set_frequency(pin, f_desired);
+}
+
+#endif // TARGET_LPC4078
@@ -0,0 +1,120 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * Fast I/O Routines for LPC1768/9
+ * Use direct port manipulation to save scads of processor time.
+ * Contributed by Triffid_Hunter and modified by Kliment, thinkyhead, Bob-the-Kuhn, et.al.
+ */
+
+/**
+ * Description: Fast IO functions LPC1768
+ *
+ * For TARGET LPC1768
+ */
+
+#include "../shared/Marduino.h"
+#include <mcu_interface.h>
+
+#define PWM_PIN(P)            true // all pins are software PWM capable
+
+#define LPC_PIN(pin)          MCUI::gpio_pin(pin)
+#define LPC_GPIO(port)        MCUI::gpio_port(port)
+
+#define SET_DIR_INPUT(IO)     MCUI::gpio_set_input(IO)
+#define SET_DIR_OUTPUT(IO)    MCUI::gpio_set_output(IO)
+
+#define SET_MODE(IO, mode)    pinMode(IO, mode)
+
+#define WRITE_PIN_SET(IO)     MCUI::gpio_set(IO)
+#define WRITE_PIN_CLR(IO)     MCUI::gpio_clear(IO)
+
+#define READ_PIN(IO)          MCUI::gpio_get(IO)
+#define WRITE_PIN(IO,V)       MCUI::gpio_set(IO, V)
+
+/**
+ * Magic I/O routines
+ *
+ * Now you can simply SET_OUTPUT(STEP); WRITE(STEP, HIGH); WRITE(STEP, LOW);
+ *
+ * Why double up on these macros? see https://gcc.gnu.org/onlinedocs/gcc-4.8.5/cpp/Stringification.html
+ */
+
+/// Read a pin
+#define _READ(IO)             READ_PIN(IO)
+
+/// Write to a pin
+#define _WRITE(IO,V)          WRITE_PIN(IO,V)
+
+/// toggle a pin
+#define _TOGGLE(IO)           MCUI::gpio_toggle(IO)
+
+/// set pin as input
+#define _SET_INPUT(IO)        SET_DIR_INPUT(IO)
+
+/// set pin as output
+#define _SET_OUTPUT(IO)       SET_DIR_OUTPUT(IO)
+
+/// set pin as input with pullup mode
+#define _PULLUP(IO,V)         pinMode(IO, (V) ? INPUT_PULLUP : INPUT)
+
+/// set pin as input with pulldown mode
+#define _PULLDOWN(IO,V)       pinMode(IO, (V) ? INPUT_PULLDOWN : INPUT)
+
+/// check if pin is an input
+#define _IS_INPUT(IO)         (!MCUI::gpio_get_dir(IO))
+
+/// check if pin is an output
+#define _IS_OUTPUT(IO)        (MCUI::gpio_get_dir(IO))
+
+/// Read a pin wrapper
+#define READ(IO)              _READ(IO)
+
+/// Write to a pin wrapper
+#define WRITE(IO,V)           _WRITE(IO,V)
+
+/// toggle a pin wrapper
+#define TOGGLE(IO)            _TOGGLE(IO)
+
+/// set pin as input wrapper
+#define SET_INPUT(IO)         _SET_INPUT(IO)
+/// set pin as input with pullup wrapper
+#define SET_INPUT_PULLUP(IO)  do{ _SET_INPUT(IO); _PULLUP(IO, HIGH); }while(0)
+/// set pin as input with pulldown wrapper
+#define SET_INPUT_PULLDOWN(IO) do{ _SET_INPUT(IO); _PULLDOWN(IO, HIGH); }while(0)
+/// set pin as output wrapper  -  reads the pin and sets the output to that value
+#define SET_OUTPUT(IO)        do{ _WRITE(IO, _READ(IO)); _SET_OUTPUT(IO); }while(0)
+// set pin as PWM
+#define SET_PWM               SET_OUTPUT
+
+/// check if pin is an input wrapper
+#define IS_INPUT(IO)          _IS_INPUT(IO)
+/// check if pin is an output wrapper
+#define IS_OUTPUT(IO)         _IS_OUTPUT(IO)
+
+// Shorthand
+#define OUT_WRITE(IO,V)       do{ SET_OUTPUT(IO); WRITE(IO,V); }while(0)
+
+// digitalRead/Write wrappers
+#define extDigitalRead(IO)    digitalRead(IO)
+#define extDigitalWrite(IO,V) digitalWrite(IO,V)
@@ -0,0 +1,22 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
@@ -0,0 +1,26 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#if DISABLED(NO_SD_HOST_DRIVE)
+  #define HAS_SD_HOST_DRIVE 1
+#endif
@@ -0,0 +1,34 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#if USE_FALLBACK_EEPROM
+  #define FLASH_EEPROM_EMULATION
+#elif ANY(I2C_EEPROM, SPI_EEPROM)
+  #define USE_SHARED_EEPROM 1
+#endif
+
+// LPC1768 boards seem to lose steps when saving to EEPROM during print (issue #20785)
+// TODO: Which other boards are incompatible?
+#if defined(MCU_LPC1768) && ENABLED(FLASH_EEPROM_EMULATION) && PRINTCOUNTER_SAVE_INTERVAL > 0
+  #define PRINTCOUNTER_SYNC 1
+#endif
@@ -0,0 +1,22 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2024 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
@@ -0,0 +1,276 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+// #if PIO_PLATFORM_VERSION < 1001
+//   #error "nxplpc-arduino-lpc176x package is out of date, Please update the PlatformIO platforms, frameworks and libraries. You may need to remove the platform and let it reinstall automatically."
+// #endif
+// #if PIO_FRAMEWORK_VERSION < 2006
+//   #error "framework-arduino-lpc176x package is out of date, Please update the PlatformIO platforms, frameworks and libraries."
+// #endif
+
+/**
+ * Detect an old pins file by checking for old ADC pins values.
+ */
+#define _OLD_TEMP_PIN(P) PIN_EXISTS(P) && _CAT(P,_PIN) <= 7 && !WITHIN(_CAT(P,_PIN), TERN(LPC1768_IS_SKRV1_3, 0, 2), 3)  // Include P0_00 and P0_01 for SKR V1.3 board
+#if _OLD_TEMP_PIN(TEMP_BED)
+  #error "TEMP_BED_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_0)
+  #error "TEMP_0_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_1)
+  #error "TEMP_1_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_2)
+  #error "TEMP_2_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_3)
+  #error "TEMP_3_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_4)
+  #error "TEMP_4_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_5)
+  #error "TEMP_5_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_6)
+  #error "TEMP_6_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#elif _OLD_TEMP_PIN(TEMP_7)
+  #error "TEMP_7_PIN must be defined using the Pn_nn or Pn_nn_An format. (See the included pins files)."
+#endif
+#undef _OLD_TEMP_PIN
+
+/**
+ * Because PWM hardware channels all share the same frequency, along with the
+ * fallback software channels, FAST_PWM_FAN is incompatible with Servos.
+ */
+static_assert(!(NUM_SERVOS && ENABLED(FAST_PWM_FAN)), "BLTOUCH and Servos are incompatible with FAST_PWM_FAN on LPC176x boards.");
+
+#if SPINDLE_LASER_FREQUENCY
+  static_assert(!NUM_SERVOS, "BLTOUCH and Servos are incompatible with SPINDLE_LASER_FREQUENCY on LPC176x boards.");
+#endif
+
+/**
+ * Test LPC176x-specific configuration values for errors at compile-time.
+ */
+
+//#if ENABLED(SPINDLE_LASER_USE_PWM) && !(SPINDLE_LASER_PWM_PIN == 4 || SPINDLE_LASER_PWM_PIN == 6 || SPINDLE_LASER_PWM_PIN == 11)
+//  #error "SPINDLE_LASER_PWM_PIN must use SERVO0, SERVO1 or SERVO3 connector"
+//#endif
+
+#if MB(RAMPS_14_RE_ARM_EFB, RAMPS_14_RE_ARM_EEB, RAMPS_14_RE_ARM_EFF, RAMPS_14_RE_ARM_EEF, RAMPS_14_RE_ARM_SF)
+  #if IS_RRD_FG_SC && HAS_DRIVER(TMC2130) && DISABLED(TMC_USE_SW_SPI)
+    #error "Re-ARM with REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER and TMC2130 requires TMC_USE_SW_SPI."
+  #endif
+#endif
+
+static_assert(DISABLED(BAUD_RATE_GCODE), "BAUD_RATE_GCODE is not yet supported on LPC176x.");
+
+/**
+ * Flag any serial port conflicts
+ *
+ *   Port  |  TX   |  RX   |
+ *    ---  |  ---  |  ---  |
+ * Serial  | P0_02 | P0_03 |
+ * Serial1 | P0_15 | P0_16 |
+ * Serial2 | P0_10 | P0_11 |
+ * Serial3 | P0_00 | P0_01 |
+ */
+#define ANY_TX(N,V...) DO(IS_TX##N,||,V)
+#define ANY_RX(N,V...) DO(IS_RX##N,||,V)
+
+#if USING_HW_SERIAL0
+  #define IS_TX0(P) (P == P0_02)
+  #define IS_RX0(P) (P == P0_03)
+  #if IS_TX0(TMC_SW_MISO) || IS_RX0(TMC_SW_MOSI)
+    #error "Serial port pins (0) conflict with Trinamic SPI pins!"
+  #elif HAS_PRUSA_MMU1 && (IS_TX0(E_MUX1_PIN) || IS_RX0(E_MUX0_PIN))
+    #error "Serial port pins (0) conflict with Multi-Material-Unit multiplexer pins!"
+  #elif (AXIS_HAS_SPI(X) && IS_TX0(X_CS_PIN)) || (AXIS_HAS_SPI(Y) && IS_RX0(Y_CS_PIN))
+    #error "Serial port pins (0) conflict with X/Y axis SPI pins!"
+  #endif
+  #undef IS_TX0
+  #undef IS_RX0
+#endif
+
+#if USING_HW_SERIAL1
+  #define IS_TX1(P) (P == P0_15)
+  #define IS_RX1(P) (P == P0_16)
+  #define _IS_TX1_1 IS_TX1
+  #define _IS_RX1_1 IS_RX1
+  #if IS_TX1(TMC_SW_SCK)
+    #error "Serial port pins (1) conflict with other pins!"
+  #elif HAS_ROTARY_ENCODER
+    #if IS_TX1(BTN_EN2) || IS_RX1(BTN_EN1)
+      #error "Serial port pins (1) conflict with Encoder Buttons!"
+    #elif ANY_TX(1, SD_SCK_PIN, LCD_PINS_D4, DOGLCD_SCK, LCD_RESET_PIN, LCD_PINS_RS, SHIFT_CLK_PIN) \
+       || ANY_RX(1, LCD_SDSS, LCD_PINS_RS, SD_MISO_PIN, DOGLCD_A0, SD_SS_PIN, LCD_SDSS, DOGLCD_CS, LCD_RESET_PIN, LCD_BACKLIGHT_PIN)
+      #error "Serial port pins (1) conflict with LCD pins!"
+    #endif
+  #endif
+  #undef IS_TX1
+  #undef IS_RX1
+  #undef _IS_TX1_1
+  #undef _IS_RX1_1
+#endif
+
+#if USING_HW_SERIAL2
+  #define IS_TX2(P) (P == P0_10)
+  #define IS_RX2(P) (P == P0_11)
+  #define _IS_TX2_1 IS_TX2
+  #define _IS_RX2_1 IS_RX2
+  #if IS_TX2(X2_ENABLE_PIN) || ANY_RX(2, X2_DIR_PIN, X2_STEP_PIN) || (AXIS_HAS_SPI(X2) && IS_TX2(X2_CS_PIN))
+    #error "Serial port pins (2) conflict with X2 pins!"
+  #elif IS_TX2(Y2_ENABLE_PIN) || ANY_RX(2, Y2_DIR_PIN, Y2_STEP_PIN) || (AXIS_HAS_SPI(Y2) && IS_TX2(Y2_CS_PIN))
+    #error "Serial port pins (2) conflict with Y2 pins!"
+  #elif IS_TX2(Z2_ENABLE_PIN) || ANY_RX(2, Z2_DIR_PIN, Z2_STEP_PIN) || (AXIS_HAS_SPI(Z2) && IS_TX2(Z2_CS_PIN))
+    #error "Serial port pins (2) conflict with Z2 pins!"
+  #elif IS_TX2(Z3_ENABLE_PIN) || ANY_RX(2, Z3_DIR_PIN, Z3_STEP_PIN) || (AXIS_HAS_SPI(Z3) && IS_TX2(Z3_CS_PIN))
+    #error "Serial port pins (2) conflict with Z3 pins!"
+  #elif IS_TX2(Z4_ENABLE_PIN) || ANY_RX(2, Z4_DIR_PIN, Z4_STEP_PIN) || (AXIS_HAS_SPI(Z4) && IS_TX2(Z4_CS_PIN))
+    #error "Serial port pins (2) conflict with Z4 pins!"
+  #elif ANY_RX(2, X_DIR_PIN, Y_DIR_PIN)
+    #error "Serial port pins (2) conflict with other pins!"
+  #elif Y_HOME_TO_MIN && IS_TX2(Y_STOP_PIN)
+    #error "Serial port pins (2) conflict with Y endstop pin!"
+  #elif USES_Z_MIN_PROBE_PIN && IS_TX2(Z_MIN_PROBE_PIN)
+    #error "Serial port pins (2) conflict with probe pin!"
+  #elif ANY_TX(2, X_ENABLE_PIN, Y_ENABLE_PIN) || ANY_RX(2, X_DIR_PIN, Y_DIR_PIN)
+    #error "Serial port pins (2) conflict with X/Y stepper pins!"
+  #elif HAS_MULTI_EXTRUDER && (IS_TX2(E1_ENABLE_PIN) || (AXIS_HAS_SPI(E1) && IS_TX2(E1_CS_PIN)))
+    #error "Serial port pins (2) conflict with E1 stepper pins!"
+  #elif EXTRUDERS && ANY_RX(2, E0_DIR_PIN, E0_STEP_PIN)
+    #error "Serial port pins (2) conflict with E stepper pins!"
+  #endif
+  #undef IS_TX2
+  #undef IS_RX2
+  #undef _IS_TX2_1
+  #undef _IS_RX2_1
+#endif
+
+#if USING_HW_SERIAL3
+  #define PIN_IS_TX3(P) (PIN_EXISTS(P) && P##_PIN == P0_00)
+  #define PIN_IS_RX3(P) (P##_PIN == P0_01)
+  #if PIN_IS_TX3(X_MIN) || PIN_IS_RX3(X_MAX)
+    #error "Serial port pins (3) conflict with X endstop pins!"
+  #elif PIN_IS_TX3(Y_SERIAL_TX) || PIN_IS_TX3(Y_SERIAL_RX) || PIN_IS_RX3(X_SERIAL_TX) || PIN_IS_RX3(X_SERIAL_RX)
+    #error "Serial port pins (3) conflict with X/Y axis UART pins!"
+  #elif PIN_IS_TX3(X2_DIR) || PIN_IS_RX3(X2_STEP)
+    #error "Serial port pins (3) conflict with X2 pins!"
+  #elif PIN_IS_TX3(Y2_DIR) || PIN_IS_RX3(Y2_STEP)
+    #error "Serial port pins (3) conflict with Y2 pins!"
+  #elif PIN_IS_TX3(Z2_DIR) || PIN_IS_RX3(Z2_STEP)
+    #error "Serial port pins (3) conflict with Z2 pins!"
+  #elif PIN_IS_TX3(Z3_DIR) || PIN_IS_RX3(Z3_STEP)
+    #error "Serial port pins (3) conflict with Z3 pins!"
+  #elif PIN_IS_TX3(Z4_DIR) || PIN_IS_RX3(Z4_STEP)
+    #error "Serial port pins (3) conflict with Z4 pins!"
+  #elif HAS_MULTI_EXTRUDER && (PIN_IS_TX3(E1_DIR) || PIN_IS_RX3(E1_STEP))
+    #error "Serial port pins (3) conflict with E1 pins!"
+  #endif
+  #undef PIN_IS_TX3
+  #undef PIN_IS_RX3
+#endif
+
+#undef ANY_TX
+#undef ANY_RX
+
+//
+// Flag any i2c pin conflicts
+//
+#if ANY(HAS_MOTOR_CURRENT_I2C, HAS_MOTOR_CURRENT_DAC, EXPERIMENTAL_I2CBUS, I2C_POSITION_ENCODERS, PCA9632, I2C_EEPROM)
+  #define USEDI2CDEV_M 1  // <Arduino>/Wire.cpp
+
+  #if USEDI2CDEV_M == 0         // P0_27 [D57] (AUX-1) .......... P0_28 [D58] (AUX-1)
+    #define PIN_IS_SDA0(P) (P##_PIN == P0_27)
+    #define IS_SCL0(P)     (P == P0_28)
+    #if ENABLED(SDSUPPORT) && PIN_IS_SDA0(SD_DETECT)
+      #error "SDA0 overlaps with SD_DETECT_PIN!"
+    #elif PIN_IS_SDA0(E0_AUTO_FAN)
+      #error "SDA0 overlaps with E0_AUTO_FAN_PIN!"
+    #elif PIN_IS_SDA0(BEEPER)
+      #error "SDA0 overlaps with BEEPER_PIN!"
+    #elif IS_SCL0(BTN_ENC)
+      #error "SCL0 overlaps with Encoder Button!"
+    #elif IS_SCL0(SD_SS_PIN)
+      #error "SCL0 overlaps with SD_SS_PIN!"
+    #elif IS_SCL0(LCD_SDSS)
+      #error "SCL0 overlaps with LCD_SDSS!"
+    #endif
+    #undef PIN_IS_SDA0
+    #undef IS_SCL0
+  #elif USEDI2CDEV_M == 1       // P0_00 [D20] (SCA) ............ P0_01 [D21] (SCL)
+    #define PIN_IS_SDA1(P) (PIN_EXISTS(P) && P##_PIN == P0_00)
+    #define PIN_IS_SCL1(P) (P##_PIN == P0_01)
+    #if PIN_IS_SDA1(X_MIN) || PIN_IS_SCL1(X_MAX)
+      #error "One or more i2c (1) pins overlaps with X endstop pins! Disable i2c peripherals."
+    #elif PIN_IS_SDA1(X2_DIR) || PIN_IS_SCL1(X2_STEP)
+      #error "One or more i2c (1) pins overlaps with X2 pins! Disable i2c peripherals."
+    #elif PIN_IS_SDA1(Y2_DIR) || PIN_IS_SCL1(Y2_STEP)
+      #error "One or more i2c (1) pins overlaps with Y2 pins! Disable i2c peripherals."
+    #elif PIN_IS_SDA1(Z2_DIR) || PIN_IS_SCL1(Z2_STEP)
+      #error "One or more i2c (1) pins overlaps with Z2 pins! Disable i2c peripherals."
+    #elif PIN_IS_SDA1(Z3_DIR) || PIN_IS_SCL1(Z3_STEP)
+      #error "One or more i2c (1) pins overlaps with Z3 pins! Disable i2c peripherals."
+    #elif PIN_IS_SDA1(Z4_DIR) || PIN_IS_SCL1(Z4_STEP)
+      #error "One or more i2c (1) pins overlaps with Z4 pins! Disable i2c peripherals."
+    #elif HAS_MULTI_EXTRUDER && (PIN_IS_SDA1(E1_DIR) || PIN_IS_SCL1(E1_STEP))
+      #error "One or more i2c (1) pins overlaps with E1 pins! Disable i2c peripherals."
+    #endif
+    #undef PIN_IS_SDA1
+    #undef PIN_IS_SCL1
+  #elif USEDI2CDEV_M == 2     // P0_10 [D38] (X_ENABLE_PIN) ... P0_11 [D55] (X_DIR_PIN)
+    #define PIN_IS_SDA2(P) (P##_PIN == P0_10)
+    #define PIN_IS_SCL2(P) (P##_PIN == P0_11)
+    #if PIN_IS_SDA2(Y_STOP)
+      #error "i2c SDA2 overlaps with Y endstop pin!"
+    #elif USES_Z_MIN_PROBE_PIN && PIN_IS_SDA2(Z_MIN_PROBE)
+      #error "i2c SDA2 overlaps with Z probe pin!"
+    #elif PIN_IS_SDA2(X_ENABLE) || PIN_IS_SDA2(Y_ENABLE)
+      #error "i2c SDA2 overlaps with X/Y ENABLE pin!"
+    #elif AXIS_HAS_SPI(X) && PIN_IS_SDA2(X_CS)
+      #error "i2c SDA2 overlaps with X CS pin!"
+    #elif PIN_IS_SDA2(X2_ENABLE)
+      #error "i2c SDA2 overlaps with X2 enable pin! Disable i2c peripherals."
+    #elif PIN_IS_SDA2(Y2_ENABLE)
+      #error "i2c SDA2 overlaps with Y2 enable pin! Disable i2c peripherals."
+    #elif PIN_IS_SDA2(Z2_ENABLE)
+      #error "i2c SDA2 overlaps with Z2 enable pin! Disable i2c peripherals."
+    #elif PIN_IS_SDA2(Z3_ENABLE)
+      #error "i2c SDA2 overlaps with Z3 enable pin! Disable i2c peripherals."
+    #elif PIN_IS_SDA2(Z4_ENABLE)
+      #error "i2c SDA2 overlaps with Z4 enable pin! Disable i2c peripherals."
+    #elif HAS_MULTI_EXTRUDER && PIN_IS_SDA2(E1_ENABLE)
+      #error "i2c SDA2 overlaps with E1 enable pin! Disable i2c peripherals."
+    #elif HAS_MULTI_EXTRUDER && AXIS_HAS_SPI(E1) && PIN_IS_SDA2(E1_CS)
+      #error "i2c SDA2 overlaps with E1 CS pin! Disable i2c peripherals."
+    #elif EXTRUDERS && (PIN_IS_SDA2(E0_STEP) || PIN_IS_SDA2(E0_DIR))
+      #error "i2c SCL2 overlaps with E0 STEP/DIR pin! Disable i2c peripherals."
+    #elif PIN_IS_SDA2(X_DIR) || PIN_IS_SDA2(Y_DIR)
+      #error "One or more i2c pins overlaps with X/Y DIR pin! Disable i2c peripherals."
+    #endif
+    #undef PIN_IS_SDA2
+    #undef PIN_IS_SCL2
+  #endif
+
+  #undef USEDI2CDEV_M
+#endif
+
+#if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
+  #error "SERIAL_STATS_MAX_RX_QUEUED is not supported on LPC176x."
+#elif ENABLED(SERIAL_STATS_DROPPED_RX)
+  #error "SERIAL_STATS_DROPPED_RX is not supported on LPX176x."
+#endif
@@ -0,0 +1,209 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../../shared/HAL_SPI.h"
+
+#include <stdint.h>
+#include <mcu_interface.h>
+
+//#define MSBFIRST 1
+
+#define SPI_MODE0 0
+#define SPI_MODE1 1
+#define SPI_MODE2 2
+#define SPI_MODE3 3
+
+#define SSP_CR0_DSS(n)  ((uint32_t)((n-1)&0xF))
+#define SSP_DATABIT_4		SSP_CR0_DSS(4) 			/*!< Databit number = 4 */
+#define SSP_DATABIT_5		SSP_CR0_DSS(5) 			/*!< Databit number = 5 */
+#define SSP_DATABIT_6		SSP_CR0_DSS(6) 			/*!< Databit number = 6 */
+#define SSP_DATABIT_7		SSP_CR0_DSS(7) 			/*!< Databit number = 7 */
+#define SSP_DATABIT_8		SSP_CR0_DSS(8) 			/*!< Databit number = 8 */
+#define SSP_DATABIT_9		SSP_CR0_DSS(9) 			/*!< Databit number = 9 */
+#define SSP_DATABIT_10		SSP_CR0_DSS(10) 		/*!< Databit number = 10 */
+#define SSP_DATABIT_11		SSP_CR0_DSS(11) 		/*!< Databit number = 11 */
+#define SSP_DATABIT_12		SSP_CR0_DSS(12) 		/*!< Databit number = 12 */
+#define SSP_DATABIT_13		SSP_CR0_DSS(13) 		/*!< Databit number = 13 */
+#define SSP_DATABIT_14		SSP_CR0_DSS(14) 		/*!< Databit number = 14 */
+#define SSP_DATABIT_15		SSP_CR0_DSS(15) 		/*!< Databit number = 15 */
+#define SSP_DATABIT_16		SSP_CR0_DSS(16) 		/*!< Databit number = 16 */
+
+#define DATA_SIZE_8BIT SSP_DATABIT_8
+#define DATA_SIZE_16BIT SSP_DATABIT_16
+
+#define SPI_CLOCK_MAX_TFT  30000000UL
+#define SPI_CLOCK_DIV2     8333333 //(SCR:  2)  desired: 8,000,000  actual: 8,333,333  +4.2%  SPI_FULL_SPEED
+#define SPI_CLOCK_DIV4     4166667 //(SCR:  5)  desired: 4,000,000  actual: 4,166,667  +4.2%  SPI_HALF_SPEED
+#define SPI_CLOCK_DIV8     2083333 //(SCR: 11)  desired: 2,000,000  actual: 2,083,333  +4.2%  SPI_QUARTER_SPEED
+#define SPI_CLOCK_DIV16    1000000 //(SCR: 24)  desired: 1,000,000  actual: 1,000,000         SPI_EIGHTH_SPEED
+#define SPI_CLOCK_DIV32     500000 //(SCR: 49)  desired:   500,000  actual:   500,000         SPI_SPEED_5
+#define SPI_CLOCK_DIV64     250000 //(SCR: 99)  desired:   250,000  actual:   250,000         SPI_SPEED_6
+#define SPI_CLOCK_DIV128    125000 //(SCR:199)  desired:   125,000  actual:   125,000         Default from HAL.h
+
+#define SPI_CLOCK_MAX SPI_CLOCK_DIV2
+
+#define BOARD_NR_SPI 3
+
+// SSP0 TMC port
+#define BOARD_SPI1_NSS_PIN      P_NC
+#define BOARD_SPI1_SCK_PIN      P1_20
+#define BOARD_SPI1_MISO_PIN     P1_23
+#define BOARD_SPI1_MOSI_PIN     P1_24
+
+// SSP2 LCD SD port
+#define BOARD_SPI2_NSS_PIN      P_NC
+#define BOARD_SPI2_SCK_PIN      P1_00
+#define BOARD_SPI2_MISO_PIN     P1_04
+#define BOARD_SPI2_MOSI_PIN     P1_01
+
+// SSP1 Onboard SD port
+#define BOARD_SPI3_NSS_PIN      P_NC
+#define BOARD_SPI3_SCK_PIN      P0_07
+#define BOARD_SPI3_MISO_PIN     P0_08
+#define BOARD_SPI3_MOSI_PIN     P0_09
+
+class SPISettings {
+public:
+  SPISettings(uint32_t spiRate, int inBitOrder, int inDataMode) {
+    init_AlwaysInline(spiRate2Clock(spiRate), inBitOrder, inDataMode, DATA_SIZE_8BIT);
+  }
+  SPISettings(uint32_t inClock, uint8_t inBitOrder, uint8_t inDataMode, uint32_t inDataSize) {
+    if (__builtin_constant_p(inClock))
+      init_AlwaysInline(inClock, inBitOrder, inDataMode, inDataSize);
+    else
+      init_MightInline(inClock, inBitOrder, inDataMode, inDataSize);
+  }
+  SPISettings() {
+    init_AlwaysInline(4000000, MSBFIRST, SPI_MODE0, DATA_SIZE_8BIT);
+  }
+
+  //uint32_t spiRate() const { return spi_speed; }
+
+  static uint32_t spiRate2Clock(uint32_t spiRate) {
+    uint32_t Marlin_speed[7]; // CPSR is always 2
+    Marlin_speed[0] = 8333333; //(SCR:  2)  desired: 8,000,000  actual: 8,333,333  +4.2%  SPI_FULL_SPEED
+    Marlin_speed[1] = 4166667; //(SCR:  5)  desired: 4,000,000  actual: 4,166,667  +4.2%  SPI_HALF_SPEED
+    Marlin_speed[2] = 2083333; //(SCR: 11)  desired: 2,000,000  actual: 2,083,333  +4.2%  SPI_QUARTER_SPEED
+    Marlin_speed[3] = 1000000; //(SCR: 24)  desired: 1,000,000  actual: 1,000,000         SPI_EIGHTH_SPEED
+    Marlin_speed[4] =  500000; //(SCR: 49)  desired:   500,000  actual:   500,000         SPI_SPEED_5
+    Marlin_speed[5] =  250000; //(SCR: 99)  desired:   250,000  actual:   250,000         SPI_SPEED_6
+    Marlin_speed[6] =  125000; //(SCR:199)  desired:   125,000  actual:   125,000         Default from HAL.h
+    return Marlin_speed[spiRate > 6 ? 6 : spiRate];
+  }
+
+private:
+  void init_MightInline(uint32_t inClock, uint8_t inBitOrder, uint8_t inDataMode, uint32_t inDataSize) {
+    init_AlwaysInline(inClock, inBitOrder, inDataMode, inDataSize);
+  }
+  void init_AlwaysInline(uint32_t inClock, uint8_t inBitOrder, uint8_t inDataMode, uint32_t inDataSize) __attribute__((__always_inline__)) {
+    clock    = inClock;
+    bitOrder = inBitOrder;
+    dataMode = inDataMode;
+    dataSize = inDataSize;
+    m_config = {};
+    m_config.frequency = 400000;
+  }
+
+  MCUI::SSP::Config m_config;
+
+  //uint32_t spi_speed;
+  uint32_t clock;
+  uint32_t dataSize;
+  //uint32_t clockDivider;
+  uint8_t bitOrder;
+  uint8_t dataMode;
+
+  uint8_t device_id;
+
+  friend class SPIClass;
+};
+
+/**
+ * @brief Wirish SPI interface.
+ *
+ * This is the same interface is available across HAL
+ *
+ * This implementation uses software slave management, so the caller
+ * is responsible for controlling the slave select line.
+ */
+class SPIClass {
+public:
+  /**
+   * @param spiPortNumber Number of the SPI port to manage.
+   */
+  SPIClass(uint8_t spiPortNumber);
+
+  /**
+   * Init using pins
+   */
+  SPIClass(pin_t mosi, pin_t miso, pin_t sclk, pin_t ssel = (pin_t)-1);
+
+  /**
+   * Select and configure the current selected SPI device to use
+   */
+  void begin();
+
+  /**
+   * Disable the current SPI device
+   */
+  void end();
+
+  void beginTransaction(const SPISettings&);
+  void endTransaction() {}
+
+  // Transfer using 1 "Data Size"
+  uint8_t transfer(uint16_t data);
+  // Transfer 2 bytes in 8 bit mode
+  uint16_t transfer16(uint16_t data);
+
+  void send(uint8_t data);
+
+  uint16_t read();
+  void read(uint8_t *buf, uint32_t len);
+
+  void dmaSend(void *buf, uint16_t length, bool minc);
+
+  /**
+   * @brief Sets the number of the SPI peripheral to be used by
+   *        this HardwareSPI instance.
+   *
+   * @param spi_num Number of the SPI port. 1-2 in low density devices
+   *     or 1-3 in high density devices.
+   */
+  void setModule(uint8_t device);
+
+  void setClock(uint32_t clock);
+  void setBitOrder(uint8_t bitOrder);
+  void setDataMode(uint8_t dataMode);
+  void setDataSize(uint32_t ds);
+
+  inline uint32_t getDataSize() { return _currentSetting->dataSize; }
+
+private:
+  SPISettings _settings[BOARD_NR_SPI];
+  SPISettings *_currentSetting;
+
+  void updateSettings();
+};
+
+extern SPIClass SPI;
@@ -0,0 +1,111 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#ifdef TARGET_LPC4078
+
+#include "../../inc/MarlinConfig.h"
+#include "../../core/millis_t.h"
+#include "../../sd/cardreader.h"
+
+#include <mcu_interface.h>
+#include <driver/usb_device.h>
+
+TERN_(POSTMORTEM_DEBUGGING, extern void install_min_serial());
+
+void MarlinHAL::init() {
+
+  MCUI::pwm_init();
+
+  // Init LEDs
+  #if PIN_EXISTS(LED)
+    SET_DIR_OUTPUT(LED_PIN);
+    WRITE_PIN_CLR(LED_PIN);
+    #if PIN_EXISTS(LED2)
+      SET_DIR_OUTPUT(LED2_PIN);
+      WRITE_PIN_CLR(LED2_PIN);
+      #if PIN_EXISTS(LED3)
+        SET_DIR_OUTPUT(LED3_PIN);
+        WRITE_PIN_CLR(LED3_PIN);
+        #if PIN_EXISTS(LED4)
+          SET_DIR_OUTPUT(LED4_PIN);
+          WRITE_PIN_CLR(LED4_PIN);
+        #endif
+      #endif
+    #endif
+
+    // Flash status LED 3 times to indicate Marlin has started booting
+    for(int i = 0; i < 6; ++i) {
+      TOGGLE(LED_PIN);
+      delay(100);
+    }
+  #endif
+
+  // Init Servo Pins
+  #define INIT_SERVO(N) OUT_WRITE(SERVO##N##_PIN, LOW)
+  #if HAS_SERVO_0
+    INIT_SERVO(0);
+  #endif
+  #if HAS_SERVO_1
+    INIT_SERVO(1);
+  #endif
+  #if HAS_SERVO_2
+    INIT_SERVO(2);
+  #endif
+  #if HAS_SERVO_3
+    INIT_SERVO(3);
+  #endif
+
+  #if PIN_EXISTS(SD_SS)
+    OUT_WRITE(SD_SS_PIN, HIGH);
+  #endif
+
+  #if PIN_EXISTS(ONBOARD_SD_CS) && ONBOARD_SD_CS_PIN != SD_SS_PIN
+    OUT_WRITE(ONBOARD_SD_CS_PIN, HIGH);
+  #endif
+
+  TERN_(HAS_SD_HOST_DRIVE, MCUI::USBDevice::msc_storage_init()); // Enable USB SD card access
+  MCUI::USBDevice::connect(2000, LED_PIN);
+
+  HAL_timer_init();
+
+  TERN_(POSTMORTEM_DEBUGGING, install_min_serial()); // Install the min serial handler
+}
+
+// HAL idle task
+void MarlinHAL::idletask() {
+  #if HAS_SHARED_MEDIA
+    // If Marlin is using the SD card we need to lock it to prevent access from
+    // a PC via USB.
+    // Other HALs use IS_SD_PRINTING() and IS_SD_FILE_OPEN() to check for access but
+    // this will not reliably detect delete operations. To be safe we will lock
+    // the disk if Marlin has it mounted. Unfortunately there is currently no way
+    // to unmount the disk from the LCD menu.
+    // if (IS_SD_PRINTING() || IS_SD_FILE_OPEN())
+    if (card.isMounted())
+      MCUI::USBDevice::msc_storage_lock();
+    else
+      MCUI::USBDevice::msc_storage_release();
+  #endif
+  // Perform USB stack housekeeping
+  MCUI::USBDevice::msc_run_deferred_commands();
+}
+
+#endif // TARGET_LPC4078
@@ -0,0 +1,57 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Support routines for LPC1768
+ */
+
+/**
+ * Translation of routines & variables used by pinsDebug.h
+ */
+
+#define NUMBER_PINS_TOTAL NUM_DIGITAL_PINS
+#define IS_ANALOG(P) (DIGITAL_PIN_TO_ANALOG_PIN(P) >= 0 ? 1 : 0)
+#define digitalRead_mod(p) extDigitalRead(p)
+#define PRINT_PORT(p)
+#define GET_ARRAY_PIN(p) pin_array[p].pin
+#define PRINT_ARRAY_NAME(x) do{ sprintf_P(buffer, PSTR("%-" STRINGIFY(MAX_NAME_LENGTH) "s"), pin_array[x].name); SERIAL_ECHO(buffer); }while(0)
+#define PRINT_PIN(p) do{ sprintf_P(buffer, PSTR("P%d_%02d"), MCUI::pin_port(p), MCUI::pin_bit(p)); SERIAL_ECHO(buffer); }while(0)
+#define PRINT_PIN_ANALOG(p) do{ sprintf_P(buffer, PSTR("_A%d     "), MCUI::pin_get_adc_channel(pin)); SERIAL_ECHO(buffer); }while(0)
+#define MULTI_NAME_PAD 17 // space needed to be pretty if not first name assigned to a pin
+
+// pins that will cause hang/reset/disconnect in M43 Toggle and Watch utilities
+#ifndef M43_NEVER_TOUCH
+  #define M43_NEVER_TOUCH(Q) ((Q) == P0_29 || (Q) == P0_30 || (Q) == P2_09)  // USB pins
+#endif
+
+bool GET_PINMODE(const pin_t pin) {
+  if (!MCUI::pin_is_valid(pin) || MCUI::pin_adc_enabled(pin)) // found an invalid pin or active analog pin
+    return false;
+
+  return MCUI::gpio_direction(pin);
+}
+
+#define GET_ARRAY_IS_DIGITAL(x) ((bool) pin_array[x].is_digital)
+
+void print_port(const pin_t) {}
+void pwm_details(const pin_t) {}
+bool pwm_status(const pin_t) { return false; }
@@ -0,0 +1,54 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../../core/macros.h"
+
+#if ALL(SDSUPPORT, HAS_MARLINUI_U8GLIB) && (LCD_PINS_D4 == SD_SCK_PIN || LCD_PINS_ENABLE == SD_MOSI_PIN || DOGLCD_SCK == SD_SCK_PIN || DOGLCD_MOSI == SD_MOSI_PIN)
+  #define LPC_SOFTWARE_SPI  // If the SD card and LCD adapter share the same SPI pins, then software SPI is currently
+                            // needed due to the speed and mode required for communicating with each device being different.
+                            // This requirement can be removed if the SPI access to these devices is updated to use
+                            // spiBeginTransaction.
+#endif
+
+/** onboard SD card */
+//#define SD_SCK_PIN        P0_07
+//#define SD_MISO_PIN       P0_08
+//#define SD_MOSI_PIN       P0_09
+//#define SD_SS_PIN         P0_06
+/** external */
+#ifndef SD_SCK_PIN
+  #define SD_SCK_PIN        P0_15
+#endif
+#ifndef SD_MISO_PIN
+  #define SD_MISO_PIN       P0_17
+#endif
+#ifndef SD_MOSI_PIN
+  #define SD_MOSI_PIN       P0_18
+#endif
+#ifndef SD_SS_PIN
+  #define SD_SS_PIN         P1_23
+#endif
+#if !defined(SDSS) || SDSS == P_NC // gets defaulted in pins.h
+  #undef SDSS
+  #define SDSS          SD_SS_PIN
+#endif
@@ -0,0 +1,65 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Description:
+ *
+ * Timers for LPC1768
+ */
+
+#ifdef TARGET_LPC4078
+
+#include "../../inc/MarlinConfig.h"
+
+void HAL_timer_init() {
+  SBI(MCUI::system_control.PCONP, SBIT_TIMER0);  // Power ON Timer 0
+  STEP_TIMER_REF.PR = (HAL_TIMER_RATE) / (STEPPER_TIMER_RATE) - 1; // Use prescaler to set frequency if needed
+
+  SBI(MCUI::system_control.PCONP, SBIT_TIMER1);  // Power ON Timer 1
+  TEMP_TIMER_REF.PR = (HAL_TIMER_RATE) / 1000000 - 1;
+}
+
+void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
+  switch (timer_num) {
+    case MF_TIMER_STEP:
+      STEP_TIMER_REF.MCR = _BV(SBIT_MR0I) | _BV(SBIT_MR0R); // Match on MR0, reset on MR0, interrupts when NVIC enables them
+      STEP_TIMER_REF.MR0 = uint32_t(STEPPER_TIMER_RATE) / frequency; // Match value (period) to set frequency
+      STEP_TIMER_REF.TCR = _BV(SBIT_CNTEN); // Counter Enable
+
+      MCUCore::nvic_set_priority(MCUI::IRQNumber::TIMER0, MCUCore::nvic_encode_priority(0, 1, 0));
+      MCUCore::nvic_enable_irq(MCUI::IRQNumber::TIMER0);
+      break;
+
+    case MF_TIMER_TEMP:
+      TEMP_TIMER_REF.MCR = _BV(SBIT_MR0I) | _BV(SBIT_MR0R); // Match on MR0, reset on MR0, interrupts when NVIC enables them
+      TEMP_TIMER_REF.MR0 = uint32_t(TEMP_TIMER_RATE) / frequency;
+      TEMP_TIMER_REF.TCR = _BV(SBIT_CNTEN); // Counter Enable
+
+      MCUCore::nvic_set_priority(MCUI::IRQNumber::TIMER1, MCUCore::nvic_encode_priority(0, 2, 0));
+      MCUCore::nvic_enable_irq(MCUI::IRQNumber::TIMER1);
+      break;
+
+    default: break;
+  }
+}
+
+#endif // TARGET_LPC4078
@@ -0,0 +1,165 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * HAL For LPC1768
+ */
+
+
+#include <stdint.h>
+#include <mcu_interface.h>
+
+#include "../../core/macros.h"
+
+#define SBIT_TIMER0 1
+#define SBIT_TIMER1 2
+
+#define SBIT_CNTEN 0
+
+#define SBIT_MR0I  0 // Timer 0 Interrupt when TC matches MR0
+#define SBIT_MR0R  1 // Timer 0 Reset TC on Match
+#define SBIT_MR0S  2 // Timer 0 Stop TC and PC on Match
+#define SBIT_MR1I  3
+#define SBIT_MR1R  4
+#define SBIT_MR1S  5
+#define SBIT_MR2I  6
+#define SBIT_MR2R  7
+#define SBIT_MR2S  8
+#define SBIT_MR3I  9
+#define SBIT_MR3R 10
+#define SBIT_MR3S 11
+
+// ------------------------
+// Defines
+// ------------------------
+
+#define _HAL_TIMER(T) _CAT(MCUI::timer, T)
+#define _HAL_TIMER_IRQ(T) TIMER##T##_IRQn
+#define __HAL_TIMER_ISR(T) extern "C" void TIMER##T##_IRQHandler()
+#define _HAL_TIMER_ISR(T)  __HAL_TIMER_ISR(T)
+
+typedef uint32_t hal_timer_t;
+#define HAL_TIMER_TYPE_MAX 0xFFFFFFFF
+
+#define HAL_TIMER_RATE         ((F_CPU) / 2)  // frequency of timers peripherals
+
+#ifndef MF_TIMER_STEP
+  #define MF_TIMER_STEP         0  // Timer Index for Stepper
+#endif
+#ifndef MF_TIMER_PULSE
+  #define MF_TIMER_PULSE        MF_TIMER_STEP
+#endif
+#ifndef MF_TIMER_TEMP
+  #define MF_TIMER_TEMP         1  // Timer Index for Temperature
+#endif
+#ifndef MF_TIMER_PWM
+  #define MF_TIMER_PWM          3  // Timer Index for PWM
+#endif
+
+#define TEMP_TIMER_RATE        1000000
+#define TEMP_TIMER_FREQUENCY   1000 // temperature interrupt frequency
+
+#define STEPPER_TIMER_RATE     HAL_TIMER_RATE   // frequency of stepper timer (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE)
+#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // stepper timer ticks per µs
+#define STEPPER_TIMER_PRESCALE (CYCLES_PER_MICROSECOND / STEPPER_TIMER_TICKS_PER_US)
+
+#define PULSE_TIMER_RATE       STEPPER_TIMER_RATE   // frequency of pulse timer
+#define PULSE_TIMER_PRESCALE   STEPPER_TIMER_PRESCALE
+#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
+
+#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_STEP)
+#define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_STEP)
+#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(MF_TIMER_STEP)
+
+#define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_TEMP)
+#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_TEMP)
+
+#ifndef HAL_STEP_TIMER_ISR
+  #define HAL_STEP_TIMER_ISR() _HAL_TIMER_ISR(MF_TIMER_STEP)
+#endif
+#ifndef HAL_TEMP_TIMER_ISR
+  #define HAL_TEMP_TIMER_ISR() _HAL_TIMER_ISR(MF_TIMER_TEMP)
+#endif
+
+// Timer references by index
+#define STEP_TIMER_REF _HAL_TIMER(MF_TIMER_STEP)
+#define TEMP_TIMER_REF _HAL_TIMER(MF_TIMER_TEMP)
+
+// ------------------------
+// Public functions
+// ------------------------
+void HAL_timer_init();
+void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
+
+FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t compare) {
+  switch (timer_num) {
+    case MF_TIMER_STEP: STEP_TIMER_REF.MR0 = compare; break; // Stepper Timer Match Register 0
+    case MF_TIMER_TEMP: TEMP_TIMER_REF.MR0 = compare; break; //    Temp Timer Match Register 0
+  }
+}
+
+FORCE_INLINE static hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) {
+  switch (timer_num) {
+    case MF_TIMER_STEP: return STEP_TIMER_REF.MR0; // Stepper Timer Match Register 0
+    case MF_TIMER_TEMP: return TEMP_TIMER_REF.MR0; //    Temp Timer Match Register 0
+  }
+  return 0;
+}
+
+FORCE_INLINE static hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
+  switch (timer_num) {
+    case MF_TIMER_STEP: return STEP_TIMER_REF.TC; // Stepper Timer Count
+    case MF_TIMER_TEMP: return TEMP_TIMER_REF.TC; //    Temp Timer Count
+  }
+  return 0;
+}
+
+FORCE_INLINE static void HAL_timer_enable_interrupt(const uint8_t timer_num) {
+  switch (timer_num) {
+    case MF_TIMER_STEP: MCUCore::nvic_enable_irq(MCUI::IRQNumber::TIMER0); break; // Enable interrupt handler
+    case MF_TIMER_TEMP: MCUCore::nvic_enable_irq(MCUI::IRQNumber::TIMER1); break; // Enable interrupt handler
+  }
+}
+
+FORCE_INLINE static void HAL_timer_disable_interrupt(const uint8_t timer_num) {
+  switch (timer_num) {
+    case MF_TIMER_STEP: MCUCore::nvic_disable_irq(MCUI::IRQNumber::TIMER0); break; // Disable interrupt handler
+    case MF_TIMER_TEMP: MCUCore::nvic_disable_irq(MCUI::IRQNumber::TIMER1); break; // Disable interrupt handler
+  }
+}
+
+FORCE_INLINE static bool HAL_timer_interrupt_enabled(const uint8_t timer_num) {
+  switch (timer_num) {
+    case MF_TIMER_STEP: return MCUCore::nvic_irq_is_enabled(MCUI::IRQNumber::TIMER0); // Check if interrupt is enabled or not
+    case MF_TIMER_TEMP: return MCUCore::nvic_irq_is_enabled(MCUI::IRQNumber::TIMER1); // Check if interrupt is enabled or not
+  }
+  return false;
+}
+
+FORCE_INLINE static void HAL_timer_isr_prologue(const uint8_t timer_num) {
+  switch (timer_num) {
+    case MF_TIMER_STEP: SBI(STEP_TIMER_REF.IR, SBIT_CNTEN); break;
+    case MF_TIMER_TEMP: SBI(TEMP_TIMER_REF.IR, SBIT_CNTEN); break;
+  }
+}
+
+#define HAL_timer_isr_epilogue(T) NOOP
@@ -0,0 +1,89 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+// adapted from  I2C/master/master.c example
+//   https://www-users.cs.york.ac.uk/~pcc/MCP/HAPR-Course-web/CMSIS/examples/html/master_8c_source.html
+
+#ifdef TARGET_LPC1768
+
+#include "../include/i2c_util.h"
+#include "../../../core/millis_t.h"
+
+extern int millis();
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+//////////////////////////////////////////////////////////////////////////////////////
+
+#define I2CDEV_S_ADDR   0x78  // From SSD1306 (actual address is 0x3C - shift left 1 with LSB set to 0 to indicate write)
+
+// Send slave address and write bit
+uint8_t u8g_i2c_start(const uint8_t sla) {
+  // Sometimes TX data ACK or NAK status is returned.  That mean the start state didn't
+  // happen which means only the value of the slave address was send.  Keep looping until
+  // the slave address and write bit are actually sent.
+  do{
+    _I2C_Stop(I2CDEV_M); // output stop state on I2C bus
+    _I2C_Start(I2CDEV_M); // output start state on I2C bus
+    while ((I2C_status != I2C_I2STAT_M_TX_START)
+        && (I2C_status != I2C_I2STAT_M_TX_RESTART)
+        && (I2C_status != I2C_I2STAT_M_TX_DAT_ACK)
+        && (I2C_status != I2C_I2STAT_M_TX_DAT_NACK));  //wait for start to be asserted
+
+    LPC_I2C1->I2CONCLR = I2C_I2CONCLR_STAC; // clear start state before tansmitting slave address
+    LPC_I2C1->I2DAT = I2CDEV_S_ADDR & I2C_I2DAT_BITMASK; // transmit slave address & write bit
+    LPC_I2C1->I2CONSET = I2C_I2CONSET_AA;
+    LPC_I2C1->I2CONCLR = I2C_I2CONCLR_SIC;
+    while ((I2C_status != I2C_I2STAT_M_TX_SLAW_ACK)
+        && (I2C_status != I2C_I2STAT_M_TX_SLAW_NACK)
+        && (I2C_status != I2C_I2STAT_M_TX_DAT_ACK)
+        && (I2C_status != I2C_I2STAT_M_TX_DAT_NACK));  //wait for slaw to finish
+  }while ( (I2C_status == I2C_I2STAT_M_TX_DAT_ACK) ||  (I2C_status == I2C_I2STAT_M_TX_DAT_NACK));
+  return 1;
+}
+
+void u8g_i2c_init(const uint8_t clock_option) {
+  configure_i2c(clock_option);
+  u8g_i2c_start(0); // Send slave address and write bit
+}
+
+uint8_t u8g_i2c_send_byte(uint8_t data) {
+  #define I2C_TIMEOUT 3
+  LPC_I2C1->I2DAT = data & I2C_I2DAT_BITMASK; // transmit data
+  LPC_I2C1->I2CONSET = I2C_I2CONSET_AA;
+  LPC_I2C1->I2CONCLR = I2C_I2CONCLR_SIC;
+  const millis_t timeout = millis() + I2C_TIMEOUT;
+  while ((I2C_status != I2C_I2STAT_M_TX_DAT_ACK) && (I2C_status != I2C_I2STAT_M_TX_DAT_NACK) && PENDING(millis(), timeout));  // wait for xmit to finish
+  // had hangs with SH1106 so added time out - have seen temporary screen corruption when this happens
+  return 1;
+}
+
+void u8g_i2c_stop() {
+}
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif // TARGET_LPC1768
@@ -0,0 +1,28 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+void u8g_i2c_init(const uint8_t clock_options);
+//uint8_t u8g_i2c_wait(uint8_t mask, uint8_t pos);
+uint8_t u8g_i2c_start(uint8_t sla);
+uint8_t u8g_i2c_send_byte(uint8_t data);
+void u8g_i2c_stop();
@@ -0,0 +1,46 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * LPC1768 LCD-specific defines
+ */
+
+#ifndef U8G_HAL_LINKS
+
+  #define U8G_COM_SSD_I2C_HAL u8g_com_arduino_ssd_i2c_fn  // See U8glib-HAL
+
+#else
+
+  uint8_t u8g_com_HAL_LPC1768_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+  uint8_t u8g_com_HAL_LPC1768_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+  uint8_t u8g_com_HAL_LPC1768_ST7920_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+  uint8_t u8g_com_HAL_LPC1768_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+  uint8_t u8g_com_HAL_LPC1768_ssd_hw_i2c_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+
+  #define U8G_COM_HAL_SW_SPI_FN       u8g_com_HAL_LPC1768_sw_spi_fn
+  #define U8G_COM_HAL_HW_SPI_FN       u8g_com_HAL_LPC1768_hw_spi_fn
+  #define U8G_COM_ST7920_HAL_SW_SPI   u8g_com_HAL_LPC1768_ST7920_sw_spi_fn
+  #define U8G_COM_ST7920_HAL_HW_SPI   u8g_com_HAL_LPC1768_ST7920_hw_spi_fn
+  #define U8G_COM_SSD_I2C_HAL         u8g_com_HAL_LPC1768_ssd_hw_i2c_fn
+
+#endif
@@ -0,0 +1,43 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * LCD delay routines - used by all the drivers.
+ *
+ * These are based on the LPC1768 routines.
+ *
+ * Couldn't just call exact copies because the overhead
+ * results in a one microsecond delay taking about 4µS.
+ */
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+void U8g_delay(int msec);
+void u8g_MicroDelay();
+void u8g_10MicroDelay();
+
+#ifdef __cplusplus
+  }
+#endif
@@ -0,0 +1,59 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Low level pin manipulation routines - used by all the drivers.
+ *
+ * These are based on the LPC1768 pinMode, digitalRead & digitalWrite routines.
+ *
+ * Couldn't just call exact copies because the overhead killed the LCD update speed
+ * With an intermediate level the softspi was running in the 10-20kHz range which
+ * resulted in using about about 25% of the CPU's time.
+ */
+
+#ifdef TARGET_LPC4078
+
+#include  <mcu_interface.h>
+
+extern "C" {
+
+#include "LCD_pin_routines.h"
+
+void u8g_SetPinOutput(uint8_t pin) {
+  MCUI::gpio_set_output(pin);
+}
+
+void u8g_SetPinInput(uint8_t pin) {
+  MCUI::gpio_set_input(pin);
+}
+
+void u8g_SetPinLevel(uint8_t  pin, uint8_t  pin_status) {
+  MCUI::gpio_set(pin, pin_status);
+}
+
+uint8_t u8g_GetPinLevel(uint8_t pin) {
+  return MCUI::gpio_get(pin);
+}
+
+}
+
+#endif // TARGET_LPC4078
@@ -0,0 +1,37 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * Low level pin manipulation routines - used by all the drivers.
+ *
+ * These are based on the LPC1768 pinMode, digitalRead & digitalWrite routines.
+ *
+ * Couldn't just call exact copies because the overhead killed the LCD update speed
+ * With an intermediate level the softspi was running in the 10-20kHz range which
+ * resulted in using about about 25% of the CPU's time.
+ */
+
+void u8g_SetPinOutput(uint8_t internal_pin_number);
+void u8g_SetPinInput(uint8_t internal_pin_number);
+void u8g_SetPinLevel(uint8_t  pin, uint8_t  pin_status);
+uint8_t u8g_GetPinLevel(uint8_t pin);
@@ -0,0 +1,129 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Based on u8g_com_msp430_hw_spi.c
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2011, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice, this list
+ *    of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright notice, this
+ *    list of conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef TARGET_LPC4078
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if HAS_MARLINUI_U8GLIB
+
+#include <U8glib-HAL.h>
+#include "../../shared/HAL_SPI.h"
+
+#ifndef LCD_SPI_SPEED
+  #ifdef SD_SPI_SPEED
+    #define LCD_SPI_SPEED SD_SPI_SPEED    // Assume SPI speed shared with SD
+  #else
+    #define LCD_SPI_SPEED SPI_FULL_SPEED  // Use full speed if SD speed is not supplied
+  #endif
+#endif
+
+uint8_t u8g_com_HAL_LPC1768_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+  switch (msg) {
+    case U8G_COM_MSG_STOP:
+      break;
+
+    case U8G_COM_MSG_INIT:
+      u8g_SetPILevel(u8g, U8G_PI_CS, 1);
+      u8g_SetPILevel(u8g, U8G_PI_A0, 1);
+      u8g_SetPILevel(u8g, U8G_PI_RESET, 1);
+      u8g_SetPIOutput(u8g, U8G_PI_CS);
+      u8g_SetPIOutput(u8g, U8G_PI_A0);
+      u8g_SetPIOutput(u8g, U8G_PI_RESET);
+      u8g_Delay(5);
+      spiBegin();
+      spiInit(LCD_SPI_SPEED);
+      break;
+
+    case U8G_COM_MSG_ADDRESS:                     /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
+      u8g_SetPILevel(u8g, U8G_PI_A0, arg_val);
+      break;
+
+    case U8G_COM_MSG_CHIP_SELECT:
+      u8g_SetPILevel(u8g, U8G_PI_CS, (arg_val ? 0 : 1));
+      break;
+
+    case U8G_COM_MSG_RESET:
+      u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_BYTE:
+      spiSend((uint8_t)arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ: {
+        uint8_t *ptr = (uint8_t*) arg_ptr;
+        while (arg_val > 0) {
+          spiSend(*ptr++);
+          arg_val--;
+        }
+      }
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ_P: {
+        uint8_t *ptr = (uint8_t*) arg_ptr;
+        while (arg_val > 0) {
+          spiSend(*ptr++);
+          arg_val--;
+        }
+      }
+      break;
+  }
+  return 1;
+}
+
+#endif // HAS_MARLINUI_U8GLIB
+
+#endif // TARGET_LPC4078
@@ -0,0 +1,198 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Based on u8g_com_arduino_ssd_i2c.c
+ *
+ * COM interface for Arduino (AND ATmega) and the SSDxxxx chip (SOLOMON) variant
+ * I2C protocol
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2011, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice, this list
+ *    of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright notice, this
+ *    list of conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * Special pin usage:
+ * U8G_PI_I2C_OPTION additional options
+ * U8G_PI_A0_STATE used to store the last value of the command/data register selection
+ * U8G_PI_SET_A0   1: Signal request to update I2C device with new A0_STATE, 0: Do nothing, A0_STATE matches I2C device
+ * U8G_PI_SCL    clock line (NOT USED)
+ * U8G_PI_SDA    data line (NOT USED)
+ *
+ * U8G_PI_RESET    reset line (currently disabled, see below)
+ *
+ * Protocol:
+ * SLA, Cmd/Data Selection, Arguments
+ * The command/data register is selected by a special instruction byte, which is sent after SLA
+ *
+ * The continue bit is always 0 so that a (re)start is equired for the change from cmd to/data mode
+ */
+
+#ifdef TARGET_LPC1768
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if HAS_MARLINUI_U8GLIB
+
+#include <U8glib-HAL.h>
+
+#define I2C_SLA         (0x3C*2)
+//#define I2C_CMD_MODE  0x080
+#define I2C_CMD_MODE    0x000
+#define I2C_DATA_MODE   0x040
+
+uint8_t u8g_com_ssd_I2C_start_sequence(u8g_t *u8g) {
+  /* are we requested to set the a0 state? */
+  if (u8g->pin_list[U8G_PI_SET_A0] == 0) return 1;
+
+  /* setup bus, might be a repeated start */
+  if (u8g_i2c_start(I2C_SLA) == 0) return 0;
+  if (u8g->pin_list[U8G_PI_A0_STATE] == 0) {
+    if (u8g_i2c_send_byte(I2C_CMD_MODE) == 0) return 0;
+  }
+  else if (u8g_i2c_send_byte(I2C_DATA_MODE) == 0)
+    return 0;
+
+  u8g->pin_list[U8G_PI_SET_A0] = 0;
+  return 1;
+}
+
+uint8_t u8g_com_HAL_LPC1768_ssd_hw_i2c_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+  switch (msg) {
+    case U8G_COM_MSG_INIT:
+      //u8g_com_arduino_digital_write(u8g, U8G_PI_SCL, HIGH);
+      //u8g_com_arduino_digital_write(u8g, U8G_PI_SDA, HIGH);
+      //u8g->pin_list[U8G_PI_A0_STATE] = 0;       /* initial RS state: unknown mode */
+
+      u8g_i2c_init(u8g->pin_list[U8G_PI_I2C_OPTION]);
+      u8g_com_ssd_I2C_start_sequence(u8g);
+      break;
+
+    case U8G_COM_MSG_STOP:
+      break;
+
+    case U8G_COM_MSG_RESET:
+      /* Currently disabled, but it could be enable. Previous restrictions have been removed */
+      /* u8g_com_arduino_digital_write(u8g, U8G_PI_RESET, arg_val); */
+      break;
+
+    case U8G_COM_MSG_CHIP_SELECT:
+      u8g->pin_list[U8G_PI_A0_STATE] = 0;
+      u8g->pin_list[U8G_PI_SET_A0] = 1;   /* force a0 to set again, also forces start condition */
+      if (arg_val == 0 ) {
+        /* disable chip, send stop condition */
+        u8g_i2c_stop();
+      }
+      else {
+        /* enable, do nothing: any byte writing will trigger the i2c start */
+      }
+      break;
+
+    case U8G_COM_MSG_WRITE_BYTE:
+      //u8g->pin_list[U8G_PI_SET_A0] = 1;
+      if (u8g_com_ssd_I2C_start_sequence(u8g) == 0) {
+        u8g_i2c_stop();
+        return 0;
+      }
+
+      if (u8g_i2c_send_byte(arg_val) == 0) {
+        u8g_i2c_stop();
+        return 0;
+      }
+      // u8g_i2c_stop();
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ: {
+        //u8g->pin_list[U8G_PI_SET_A0] = 1;
+        if (u8g_com_ssd_I2C_start_sequence(u8g) == 0) {
+         u8g_i2c_stop();
+         return 0;
+        }
+
+        uint8_t *ptr = (uint8_t *)arg_ptr;
+        while (arg_val > 0) {
+          if (u8g_i2c_send_byte(*ptr++) == 0) {
+            u8g_i2c_stop();
+            return 0;
+          }
+          arg_val--;
+        }
+      }
+      // u8g_i2c_stop();
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ_P: {
+        //u8g->pin_list[U8G_PI_SET_A0] = 1;
+        if (u8g_com_ssd_I2C_start_sequence(u8g) == 0) {
+          u8g_i2c_stop();
+          return 0;
+        }
+
+        uint8_t *ptr = (uint8_t *)arg_ptr;
+        while (arg_val > 0) {
+          if (u8g_i2c_send_byte(u8g_pgm_read(ptr)) == 0)
+            return 0;
+          ptr++;
+          arg_val--;
+        }
+      }
+      // u8g_i2c_stop();
+      break;
+
+    case U8G_COM_MSG_ADDRESS:                     /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
+      u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
+      u8g->pin_list[U8G_PI_SET_A0] = 1;   /* force a0 to set again */
+      break;
+
+  } // switch
+  return 1;
+}
+
+#endif // HAS_MARLINUI_U8GLIB
+
+#endif // TARGET_LPC1768
@@ -0,0 +1,138 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Based on u8g_com_LPC1768_st7920_hw_spi.c
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2011, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice, this list
+ *    of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright notice, this
+ *    list of conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef TARGET_LPC4078
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if HAS_MARLINUI_U8GLIB
+
+#include <U8glib-HAL.h>
+#include "../../shared/HAL_SPI.h"
+#include "../../shared/Delay.h"
+
+void spiBegin();
+void spiInit(uint8_t spiRate);
+void spiSend(uint8_t b);
+void spiSend(const uint8_t *buf, size_t n);
+
+static uint8_t rs_last_state = 255;
+
+static void u8g_com_LPC1768_st7920_write_byte_hw_spi(uint8_t rs, uint8_t val) {
+
+  if (rs != rs_last_state) {      // Time to send a command/data byte
+    rs_last_state = rs;
+    spiSend(rs ? 0x0FA : 0x0F8);  // Send data or command
+    DELAY_US(40);                 // Give the controller some time: 20 is bad, 30 is OK, 40 is safe
+  }
+
+  spiSend(val & 0xF0);
+  spiSend(val << 4);
+}
+
+uint8_t u8g_com_HAL_LPC1768_ST7920_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+  switch (msg) {
+    case U8G_COM_MSG_INIT:
+      u8g_SetPILevel(u8g, U8G_PI_CS, 0);
+      u8g_SetPIOutput(u8g, U8G_PI_CS);
+      u8g_Delay(5);
+      spiBegin();
+      spiInit(SPI_EIGHTH_SPEED);            // ST7920 max speed is about 1.1 MHz
+      u8g->pin_list[U8G_PI_A0_STATE] = 0;   // initial RS state: command mode
+      break;
+
+    case U8G_COM_MSG_STOP:
+      break;
+
+    case U8G_COM_MSG_RESET:
+      u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
+      break;
+
+    case U8G_COM_MSG_ADDRESS:                   // Define cmd (arg_val = 0) or data mode (arg_val = 1)
+      u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
+      break;
+
+    case U8G_COM_MSG_CHIP_SELECT:
+      u8g_SetPILevel(u8g, U8G_PI_CS, arg_val);  // Note: the ST7920 has an active high chip-select
+      break;
+
+    case U8G_COM_MSG_WRITE_BYTE:
+      u8g_com_LPC1768_st7920_write_byte_hw_spi(u8g->pin_list[U8G_PI_A0_STATE], arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ: {
+        uint8_t *ptr = (uint8_t*) arg_ptr;
+        while (arg_val > 0) {
+          u8g_com_LPC1768_st7920_write_byte_hw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
+          arg_val--;
+        }
+      }
+      break;
+
+      case U8G_COM_MSG_WRITE_SEQ_P: {
+        uint8_t *ptr = (uint8_t*) arg_ptr;
+        while (arg_val > 0) {
+          u8g_com_LPC1768_st7920_write_byte_hw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
+          arg_val--;
+        }
+      }
+      break;
+  }
+  return 1;
+}
+
+#endif // HAS_MARLINUI_U8GLIB
+
+#endif // TARGET_LPC4078
@@ -0,0 +1,147 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Based on u8g_com_st7920_hw_spi.c
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2011, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice, this list
+ *    of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright notice, this
+ *    list of conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef TARGET_LPC4078
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if IS_U8GLIB_ST7920
+
+#include <U8glib-HAL.h>
+#include "../SoftwareSPI.h"
+#include "../../shared/Delay.h"
+#include "../../shared/HAL_SPI.h"
+
+#ifndef LCD_SPI_SPEED
+  #define LCD_SPI_SPEED SPI_EIGHTH_SPEED  // About 1 MHz
+#endif
+
+static pin_t SCK_pin_ST7920_HAL, MOSI_pin_ST7920_HAL_HAL;
+static uint8_t SPI_speed = 0;
+
+static void u8g_com_LPC1768_st7920_write_byte_sw_spi(uint8_t rs, uint8_t val) {
+  static uint8_t rs_last_state = 255;
+  if (rs != rs_last_state) {
+    // Transfer Data (FA) or Command (F8)
+    swSpiTransfer(rs ? 0x0FA : 0x0F8, SPI_speed, SCK_pin_ST7920_HAL, -1, MOSI_pin_ST7920_HAL_HAL);
+    rs_last_state = rs;
+    DELAY_US(40); // Give the controller time to process the data: 20 is bad, 30 is OK, 40 is safe
+  }
+  swSpiTransfer(val & 0x0F0, SPI_speed, SCK_pin_ST7920_HAL, -1, MOSI_pin_ST7920_HAL_HAL);
+  swSpiTransfer(val << 4, SPI_speed, SCK_pin_ST7920_HAL, -1, MOSI_pin_ST7920_HAL_HAL);
+}
+
+uint8_t u8g_com_HAL_LPC1768_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+  switch (msg) {
+    case U8G_COM_MSG_INIT:
+      SCK_pin_ST7920_HAL = u8g->pin_list[U8G_PI_SCK];
+      MOSI_pin_ST7920_HAL_HAL = u8g->pin_list[U8G_PI_MOSI];
+
+      u8g_SetPIOutput(u8g, U8G_PI_CS);
+      u8g_SetPIOutput(u8g, U8G_PI_SCK);
+      u8g_SetPIOutput(u8g, U8G_PI_MOSI);
+      u8g_Delay(5);
+
+      SPI_speed = swSpiInit(LCD_SPI_SPEED, SCK_pin_ST7920_HAL, MOSI_pin_ST7920_HAL_HAL);
+
+      u8g_SetPILevel(u8g, U8G_PI_CS, 0);
+      u8g_SetPILevel(u8g, U8G_PI_SCK, 0);
+      u8g_SetPILevel(u8g, U8G_PI_MOSI, 0);
+
+      u8g->pin_list[U8G_PI_A0_STATE] = 0;       /* initial RS state: command mode */
+      break;
+
+    case U8G_COM_MSG_STOP:
+      break;
+
+    case U8G_COM_MSG_RESET:
+       if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
+      break;
+
+    case U8G_COM_MSG_ADDRESS:                     /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
+      u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
+      break;
+
+    case U8G_COM_MSG_CHIP_SELECT:
+      if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_CS]) u8g_SetPILevel(u8g, U8G_PI_CS, arg_val);  //note: the st7920 has an active high chip select
+      break;
+
+    case U8G_COM_MSG_WRITE_BYTE:
+      u8g_com_LPC1768_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ: {
+        uint8_t *ptr = (uint8_t*) arg_ptr;
+        while (arg_val > 0) {
+          u8g_com_LPC1768_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
+          arg_val--;
+        }
+      }
+      break;
+
+      case U8G_COM_MSG_WRITE_SEQ_P: {
+        uint8_t *ptr = (uint8_t*) arg_ptr;
+        while (arg_val > 0) {
+          u8g_com_LPC1768_st7920_write_byte_sw_spi(u8g->pin_list[U8G_PI_A0_STATE], *ptr++);
+          arg_val--;
+        }
+      }
+      break;
+  }
+  return 1;
+}
+
+#endif // IS_U8GLIB_ST7920
+#endif // TARGET_LPC4078
@@ -0,0 +1,209 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Based on u8g_com_std_sw_spi.c
+ *
+ * Universal 8bit Graphics Library
+ *
+ * Copyright (c) 2015, olikraus@gmail.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice, this list
+ *    of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright notice, this
+ *    list of conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef TARGET_LPC4078
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if HAS_MARLINUI_U8GLIB && !IS_U8GLIB_ST7920
+
+#include <SoftwareSPI.h>
+#include "../../shared/HAL_SPI.h"
+
+#ifndef LCD_SPI_SPEED
+  #define LCD_SPI_SPEED SPI_QUARTER_SPEED  // About 2 MHz
+#endif
+
+#include <Arduino.h>
+#include <algorithm>
+#include <LPC17xx.h>
+#include <gpio.h>
+
+#include <U8glib-HAL.h>
+
+uint8_t swSpiTransfer_mode_0(uint8_t b, const uint8_t spi_speed, const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin ) {
+
+  LOOP_L_N(i, 8) {
+    if (spi_speed == 0) {
+      LPC176x::gpio_set(mosi_pin, !!(b & 0x80));
+      LPC176x::gpio_set(sck_pin, HIGH);
+      b <<= 1;
+      if (miso_pin >= 0 && LPC176x::gpio_get(miso_pin)) b |= 1;
+      LPC176x::gpio_set(sck_pin, LOW);
+    }
+    else {
+      const uint8_t state = (b & 0x80) ? HIGH : LOW;
+      LOOP_L_N(j, spi_speed)
+        LPC176x::gpio_set(mosi_pin, state);
+
+      LOOP_L_N(j, spi_speed + (miso_pin >= 0 ? 0 : 1))
+        LPC176x::gpio_set(sck_pin, HIGH);
+
+      b <<= 1;
+      if (miso_pin >= 0 && LPC176x::gpio_get(miso_pin)) b |= 1;
+
+      LOOP_L_N(j, spi_speed)
+        LPC176x::gpio_set(sck_pin, LOW);
+    }
+  }
+
+  return b;
+}
+
+uint8_t swSpiTransfer_mode_3(uint8_t b, const uint8_t spi_speed, const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin ) {
+
+  LOOP_L_N(i, 8) {
+    const uint8_t state = (b & 0x80) ? HIGH : LOW;
+    if (spi_speed == 0) {
+      LPC176x::gpio_set(sck_pin, LOW);
+      LPC176x::gpio_set(mosi_pin, state);
+      LPC176x::gpio_set(mosi_pin, state);  // need some setup time
+      LPC176x::gpio_set(sck_pin, HIGH);
+    }
+    else {
+      LOOP_L_N(j, spi_speed + (miso_pin >= 0 ? 0 : 1))
+        LPC176x::gpio_set(sck_pin, LOW);
+
+      LOOP_L_N(j, spi_speed)
+        LPC176x::gpio_set(mosi_pin, state);
+
+      LOOP_L_N(j, spi_speed)
+        LPC176x::gpio_set(sck_pin, HIGH);
+    }
+    b <<= 1;
+    if (miso_pin >= 0 && LPC176x::gpio_get(miso_pin)) b |= 1;
+  }
+
+  return b;
+}
+
+static uint8_t SPI_speed = 0;
+
+static void u8g_sw_spi_HAL_LPC1768_shift_out(uint8_t dataPin, uint8_t clockPin, uint8_t val) {
+  #if ANY(FYSETC_MINI_12864, MKS_MINI_12864)
+    swSpiTransfer_mode_3(val, SPI_speed, clockPin, -1, dataPin);
+  #else
+    swSpiTransfer_mode_0(val, SPI_speed, clockPin, -1, dataPin);
+  #endif
+}
+
+uint8_t u8g_com_HAL_LPC1768_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+  switch (msg) {
+    case U8G_COM_MSG_INIT:
+      u8g_SetPIOutput(u8g, U8G_PI_SCK);
+      u8g_SetPIOutput(u8g, U8G_PI_MOSI);
+      u8g_SetPIOutput(u8g, U8G_PI_CS);
+      u8g_SetPIOutput(u8g, U8G_PI_A0);
+      if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPIOutput(u8g, U8G_PI_RESET);
+      SPI_speed = swSpiInit(LCD_SPI_SPEED, u8g->pin_list[U8G_PI_SCK], u8g->pin_list[U8G_PI_MOSI]);
+      u8g_SetPILevel(u8g, U8G_PI_SCK, 0);
+      u8g_SetPILevel(u8g, U8G_PI_MOSI, 0);
+      break;
+
+    case U8G_COM_MSG_STOP:
+      break;
+
+    case U8G_COM_MSG_RESET:
+      if (U8G_PIN_NONE != u8g->pin_list[U8G_PI_RESET]) u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
+      break;
+
+    case U8G_COM_MSG_CHIP_SELECT:
+      #if ANY(FYSETC_MINI_12864, MKS_MINI_12864)  // LCD SPI is running mode 3 while SD card is running mode 0
+        if (arg_val) {                               //   SCK idle state needs to be set to the proper idle state before
+                                                     //   the next chip select goes active
+          u8g_SetPILevel(u8g, U8G_PI_SCK, 1);        // Set SCK to mode 3 idle state before CS goes active
+          u8g_SetPILevel(u8g, U8G_PI_CS, LOW);
+        }
+        else {
+          u8g_SetPILevel(u8g, U8G_PI_CS, HIGH);
+          u8g_SetPILevel(u8g, U8G_PI_SCK, 0);  // Set SCK to mode 0 idle state after CS goes inactive
+        }
+      #else
+        u8g_SetPILevel(u8g, U8G_PI_CS, !arg_val);
+      #endif
+      break;
+
+    case U8G_COM_MSG_WRITE_BYTE:
+      u8g_sw_spi_HAL_LPC1768_shift_out(u8g->pin_list[U8G_PI_MOSI], u8g->pin_list[U8G_PI_SCK], arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ: {
+        uint8_t *ptr = (uint8_t *)arg_ptr;
+        while (arg_val > 0) {
+          u8g_sw_spi_HAL_LPC1768_shift_out(u8g->pin_list[U8G_PI_MOSI], u8g->pin_list[U8G_PI_SCK], *ptr++);
+          arg_val--;
+        }
+      }
+      break;
+
+      case U8G_COM_MSG_WRITE_SEQ_P: {
+        uint8_t *ptr = (uint8_t *)arg_ptr;
+        while (arg_val > 0) {
+          u8g_sw_spi_HAL_LPC1768_shift_out(u8g->pin_list[U8G_PI_MOSI], u8g->pin_list[U8G_PI_SCK], u8g_pgm_read(ptr));
+          ptr++;
+          arg_val--;
+        }
+      }
+      break;
+
+    case U8G_COM_MSG_ADDRESS:                     /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
+      u8g_SetPILevel(u8g, U8G_PI_A0, arg_val);
+      break;
+  }
+  return 1;
+}
+
+#endif // HAS_MARLINUI_U8GLIB && !IS_U8GLIB_ST7920
+#endif // TARGET_LPC4078
@@ -53,6 +53,7 @@
    inline void begin(unsigned long baud) { begin(baud, SERIAL_8N1); }

    void _rx_complete_irq(serial_t *obj);
+    FORCE_INLINE static uint8_t buffer_overruns() { return 0; } // Not implemented. Void to avoid platform-dependent code.

    protected:
      usart_rx_callback_t _rx_callback;
@@ -41,7 +41,7 @@ typedef uint32_t hal_timer_t;
 #define FTM0_TIMER_PRESCALE_BITS 0b011
 #define FTM1_TIMER_PRESCALE_BITS 0b010

-#define FTM0_TIMER_RATE (F_BUS / (FTM0_TIMER_PRESCALE)) // 60MHz / 8 = 7500kHz
+#define FTM0_TIMER_RATE (F_BUS / (FTM0_TIMER_PRESCALE)) // 60MHz / 8 = 7.5MHz
 #define FTM1_TIMER_RATE (F_BUS / (FTM1_TIMER_PRESCALE)) // 60MHz / 4 = 15MHz

 #define HAL_TIMER_RATE         (FTM0_TIMER_RATE)
@@ -37,6 +37,8 @@
  #define HAL_PATH(PATH, NAME) XSTR(PATH/HAL/LPC1768/NAME)
 #elif defined(ARDUINO_ARCH_HC32)
  #define HAL_PATH(PATH, NAME) XSTR(PATH/HAL/HC32/NAME)
+#elif defined(TARGET_LPC4078)
+  #define HAL_PATH(PATH, NAME) XSTR(PATH/HAL/LPC4078/NAME)
 #elif defined(__STM32F1__) || defined(TARGET_STM32F1)
  #define HAL_PATH(PATH, NAME) XSTR(PATH/HAL/STM32F1/NAME)
 #elif defined(ARDUINO_ARCH_STM32)
@@ -76,6 +76,8 @@
  #include "../LPC1768/Servo.h"
 #elif defined(ARDUINO_ARCH_HC32)
  #include "../HC32/Servo.h"
+#elif defined(TARGET_LPC4078)
+  #include "../LPC4078/Servo.h"
 #elif defined(__STM32F1__) || defined(TARGET_STM32F1)
  #include "../STM32F1/Servo.h"
 #elif defined(ARDUINO_ARCH_STM32)
@@ -266,7 +266,7 @@ PGMSTR(M112_KILL_STR, "M112 Shutdown");
 MarlinState marlin_state = MF_INITIALIZING;

 // For M109 and M190, this flag may be cleared (by M108) to exit the wait loop
-bool wait_for_heatup = true;
+bool wait_for_heatup = false;

 // For M0/M1, this flag may be cleared (by M108) to exit the wait-for-user loop
 #if HAS_RESUME_CONTINUE
@@ -474,11 +474,16 @@ inline void manage_inactivity(const bool no_stepper_sleep=false) {

  #if HAS_KILL

-    // Check if the kill button was pressed and wait just in case it was an accidental
-    // key kill key press
+    // Check if the kill button was pressed and wait to ensure the signal is not noise
+    // typically caused by poor insulation and grounding on LCD cables.
+    // Lower numbers here will increase response time and therefore safety rating.
+    // It is recommended to set this as low as possibe without false triggers.
    // -------------------------------------------------------------------------------
+    #ifndef KILL_DELAY
+      #define KILL_DELAY 250
+    #endif
+
    static int killCount = 0;   // make the inactivity button a bit less responsive
-    const int KILL_DELAY = 750;
    if (kill_state())
      killCount++;
    else if (killCount > 0)
@@ -131,6 +131,7 @@
 #define BOARD_PXMALION_CORE_I3        1164  // Pxmalion Core I3
 #define BOARD_PANOWIN_CUTLASS         1165  // Panowin Cutlass (as found in the Panowin F1)
 #define BOARD_KODAMA_BARDO            1166  // Kodama Bardo V1.x (as found in the Kodama Trinus)
+#define BOARD_DAGOMA_D6               1167  // Dagoma D6 (as found in the Dagoma DiscoUltimate V2 TMC)

 //
 // RAMBo and derivatives
@@ -382,9 +383,9 @@
 #define BOARD_CREALITY_V452           5050  // Creality v4.5.2 (STM32F103RC / STM32F103RE)
 #define BOARD_CREALITY_V453           5051  // Creality v4.5.3 (STM32F103RC / STM32F103RE)
 #define BOARD_CREALITY_V521           5052  // Creality v5.2.1 (STM32F103VE) as found in the SV04
-#define BOARD_CREALITY_V24S1          5053  // Creality v2.4.S1 (STM32F103RC / STM32F103RE) v101 as found in the Ender-7
-#define BOARD_CREALITY_V24S1_301      5054  // Creality v2.4.S1_301 (STM32F103RC / STM32F103RE) v301 as found in the Ender-3 S1
-#define BOARD_CREALITY_V25S1          5055  // Creality v2.5.S1 (STM32F103RE) as found in the CR-10 Smart Pro
+#define BOARD_CREALITY_V24S1          5053  // Creality v2.4.S1 (STM32F103RC / STM32F103RE) CR-FDM-v2.4.S1_v101 as found in the Ender-7
+#define BOARD_CREALITY_V24S1_301      5054  // Creality v2.4.S1_301 (STM32F103RC / STM32F103RE) CR-FDM-v24S1_301 as found in the Ender-3 S1
+#define BOARD_CREALITY_V25S1          5055  // Creality v2.5.S1 (STM32F103RE) CR-FDM-v2.5.S1_100 as found in the CR-10 Smart Pro
 #define BOARD_TRIGORILLA_PRO          5056  // Trigorilla Pro (STM32F103ZE)
 #define BOARD_FLY_MINI                5057  // FLYmaker FLY MINI (STM32F103RC)
 #define BOARD_FLSUN_HISPEED           5058  // FLSUN HiSpeedV1 (STM32F103VE)
@@ -409,6 +410,7 @@

 #define BOARD_TEENSY31_32             5100  // Teensy3.1 and Teensy3.2
 #define BOARD_TEENSY35_36             5101  // Teensy3.5 and Teensy3.6
+#define BOARD_EBAB                    5102

 //
 // STM32 ARM Cortex-M4F
@@ -467,6 +469,11 @@
 #define BOARD_FYSETC_CHEETAH_V30      5250  // FYSETC Cheetah V3.0 (STM32F446RC)
 #define BOARD_BLACKBEEZMINI_V1        5251  // BlackBeezMini V1 (STM32F401CCU6)

+//
+// Other ARM Cortex-M4
+//
+#define BOARD_CREALITY_CR4NS          5300  // Creality CR4NS200320C13 (GD32F303RET6) as found in the Ender-3 V3 SE
+
 //
 // ARM Cortex-M7
 //
@@ -135,6 +135,7 @@
 #define STR_BUSY_PAUSED_FOR_USER            "busy: paused for user"
 #define STR_BUSY_PAUSED_FOR_INPUT           "busy: paused for input"
 #define STR_Z_MOVE_COMP                     "Z_move_comp"
+#define STR_LINE_NO                         "Line: "
 #define STR_RESEND                          "Resend: "
 #define STR_UNKNOWN_COMMAND                 "Unknown command: \""
 #define STR_ACTIVE_EXTRUDER                 "Active Extruder: "
@@ -89,7 +89,8 @@
 #define HYPOT2(x,y) (sq(x)+sq(y))
 #define NORMSQ(x,y,z) (sq(x)+sq(y)+sq(z))

-#define CIRCLE_AREA(R) (float(M_PI) * sq(float(R)))
+#define FLOAT_SQ(I) float(sq(I))
+#define CIRCLE_AREA(R) (float(M_PI) * FLOAT_SQ(R))
 #define CIRCLE_CIRC(R) (2 * float(M_PI) * float(R))

 #define SIGN(a) ({__typeof__(a) _a = (a); (_a>0)-(_a<0);})
@@ -143,13 +143,13 @@ public:

  // Set with format string and arguments, like printf
  template<typename... Args>
-  MString& setf_P(PGM_P const fmt, Args... more) { SNPRINTF_P(str, SIZE, fmt, more...); debug(F("setf_P")); return *this; }
+  MString& setf_P(PGM_P const pfmt, Args... more) { SNPRINTF_P(str, SIZE, pfmt, more...); debug(F("setf_P")); return *this; }

  template<typename... Args>
-  MString& setf(const char *fmt, Args... more)   { SNPRINTF(str, SIZE, fmt, more...);   debug(F("setf"));   return *this; }
+  MString& setf(const char *fmt, Args... more) { SNPRINTF(str, SIZE, fmt, more...); debug(F("setf")); return *this; }

  template<typename... Args>
-  MString& setf(FSTR_P const fmt, Args... more)  { return setf_P(FTOP(fmt), more...); }
+  MString& setf(FSTR_P const ffmt, Args... more) { return setf_P(FTOP(ffmt), more...); }

  // Chainable String appenders
  MString& append()                           { debug(F("nil")); return *this; } // for macros that might emit no output
@@ -206,9 +206,9 @@ public:
  MString& append(const spaces_t &s) { return append(repchr_t(' ', s.count)); }

  template<typename... Args>
-  MString& appendf_P(PGM_P const fmt, Args... more) {
+  MString& appendf_P(PGM_P const pfmt, Args... more) {
    int sz = length();
-    if (sz < SIZE) SNPRINTF_P(str + sz, SIZE - sz, fmt, more...);
+    if (sz < SIZE) SNPRINTF_P(str + sz, SIZE - sz, pfmt, more...);
    debug(F("appendf_P"));
    return *this;
  }
@@ -271,13 +271,13 @@ public:
  SString& set() { super::set(); return *this; }

  template<typename... Args>
-  SString& setf_P(PGM_P const fmt, Args... more) { super::setf_P(fmt, more...); return *this; }
+  SString& setf_P(PGM_P const pfmt, Args... more) { super::setf_P(pfmt, more...); return *this; }

  template<typename... Args>
-  SString& setf(const char *fmt, Args... more)   { super::setf(fmt, more...); return *this; }
+  SString& setf(const char *fmt, Args... more)    { super::setf(fmt, more...); return *this; }

  template<typename... Args>
-  SString& setf(FSTR_P const fmt, Args... more)  { super::setf(fmt, more...); return *this; }
+  SString& setf(FSTR_P const ffmt, Args... more)  { super::setf(ffmt, more...); return *this; }

  template <typename T>
  SString& set(const T &v) { super::set(v); return *this; }
@@ -46,6 +46,7 @@ template <class L, class R> struct IF<true, L, R> { typedef L type; };
 #define NUM_AXIS_ELEM(O)      NUM_AXIS_LIST(O.x, O.y, O.z, O.i, O.j, O.k, O.u, O.v, O.w)
 #define NUM_AXIS_DECL(T,V)    NUM_AXIS_LIST(T x=V, T y=V, T z=V, T i=V, T j=V, T k=V, T u=V, T v=V, T w=V)
 #define MAIN_AXIS_NAMES       NUM_AXIS_LIST(X, Y, Z, I, J, K, U, V, W)
+#define MAIN_AXIS_NAMES_LC    NUM_AXIS_LIST(x, y, z, i, j, k, u, v, w)
 #define STR_AXES_MAIN         NUM_AXIS_GANG("X", "Y", "Z", STR_I, STR_J, STR_K, STR_U, STR_V, STR_W)

 #define LOGICAL_AXIS_GANG(E,V...)  NUM_AXIS_GANG(V) GANG_ITEM_E(E)
@@ -58,17 +59,21 @@ template <class L, class R> struct IF<true, L, R> { typedef L type; };
 #define LOGICAL_AXIS_ELEM(O)       LOGICAL_AXIS_LIST(O.e, O.x, O.y, O.z, O.i, O.j, O.k, O.u, O.v, O.w)
 #define LOGICAL_AXIS_DECL(T,V)     LOGICAL_AXIS_LIST(T e=V, T x=V, T y=V, T z=V, T i=V, T j=V, T k=V, T u=V, T v=V, T w=V)
 #define LOGICAL_AXIS_NAMES         LOGICAL_AXIS_LIST(E, X, Y, Z, I, J, K, U, V, W)
+#define LOGICAL_AXIS_NAMES_LC      LOGICAL_AXIS_LIST(e, x, y, z, i, j, k, u, v, w)
 #define LOGICAL_AXIS_MAP(F)        MAP(F, LOGICAL_AXIS_NAMES)
+#define LOGICAL_AXIS_MAP_LC(F)     MAP(F, LOGICAL_AXIS_NAMES_LC)
 #define STR_AXES_LOGICAL           LOGICAL_AXIS_GANG("E", "X", "Y", "Z", STR_I, STR_J, STR_K, STR_U, STR_V, STR_W)

 #if NUM_AXES
  #define NUM_AXES_SEP ,
  #define MAIN_AXIS_MAP(F)    MAP(F, MAIN_AXIS_NAMES)
+  #define MAIN_AXIS_MAP_LC(F) MAP(F, MAIN_AXIS_NAMES_LC)
  #define OPTARGS_NUM(T)      , NUM_AXIS_ARGS(T)
  #define OPTARGS_LOGICAL(T)  , LOGICAL_AXIS_ARGS(T)
 #else
  #define NUM_AXES_SEP
  #define MAIN_AXIS_MAP(F)
+  #define MAIN_AXIS_MAP_LC(F)
  #define OPTARGS_NUM(T)
  #define OPTARGS_LOGICAL(T)
 #endif
@@ -79,6 +84,7 @@ template <class L, class R> struct IF<true, L, R> { typedef L type; };
 #define NUM_AXIS_ARGS_(T)       NUM_AXIS_ARGS(T) NUM_AXES_SEP
 #define NUM_AXIS_ELEM_(T)       NUM_AXIS_ELEM(T) NUM_AXES_SEP
 #define MAIN_AXIS_NAMES_        MAIN_AXIS_NAMES NUM_AXES_SEP
+#define MAIN_AXIS_NAMES_LC_     MAIN_AXIS_NAMES_LC NUM_AXES_SEP

 #if LOGICAL_AXES
  #define LOGICAL_AXES_SEP ,
@@ -92,6 +98,7 @@ template <class L, class R> struct IF<true, L, R> { typedef L type; };
 #define LOGICAL_AXIS_ARGS_(T)       LOGICAL_AXIS_ARGS(T) LOGICAL_AXES_SEP
 #define LOGICAL_AXIS_ELEM_(T)       LOGICAL_AXIS_ELEM(T) LOGICAL_AXES_SEP
 #define LOGICAL_AXIS_NAMES_         LOGICAL_AXIS_NAMES LOGICAL_AXES_SEP
+#define LOGICAL_AXIS_NAMES_LC_      LOGICAL_AXIS_NAMES_LC LOGICAL_AXES_SEP

 #define SECONDARY_AXIS_GANG(V...) GANG_N(SECONDARY_AXES, V)
 #define SECONDARY_AXIS_CODE(V...) CODE_N(SECONDARY_AXES, V)
@@ -159,7 +166,7 @@ template <class L, class R> struct IF<true, L, R> { typedef L type; };
 // General Flags for some number of states
 template<size_t N>
 struct Flags {
-  typedef uvalue_t(N) flagbits_t;
+  typedef bits_t(N) flagbits_t;
  typedef struct { bool b0:1, b1:1, b2:1, b3:1, b4:1, b5:1, b6:1, b7:1; } N8;
  typedef struct { bool b0:1, b1:1, b2:1, b3:1, b4:1, b5:1, b6:1, b7:1, b8:1, b9:1, b10:1, b11:1, b12:1, b13:1, b14:1, b15:1; } N16;
  typedef struct { bool b0:1,  b1:1,  b2:1,  b3:1,  b4:1,  b5:1,  b6:1,  b7:1,  b8:1,  b9:1, b10:1, b11:1, b12:1, b13:1, b14:1, b15:1,
@@ -219,7 +226,7 @@ typedef struct {
 //
 //  - X_AXIS, Y_AXIS, and Z_AXIS should be used for axes in Cartesian space
 //  - A_AXIS, B_AXIS, and C_AXIS should be used for Steppers, corresponding to XYZ on Cartesians
-//  - X_HEAD, Y_HEAD, and Z_HEAD should be used for Steppers on Core kinematics
+//  - X_HEAD, Y_HEAD, and Z_HEAD should be used for axes on Core kinematics
 //
 enum AxisEnum : uint8_t {

@@ -603,9 +610,9 @@ struct XYZval {
  // If any element is true then it's true
  FI constexpr operator bool()  const { return 0 NUM_AXIS_GANG(|| x, || y, || z, || i, || j, || k, || u, || v, || w); }
  // Smallest element
-  FI constexpr T small()        const { return TERN(HAS_X_AXIS, _MIN(NUM_AXIS_LIST(x, y, z, i, j, k, u, v, w)), 0); }
+  FI constexpr T small()        const { return TERN0(HAS_X_AXIS, _MIN(NUM_AXIS_LIST(x, y, z, i, j, k, u, v, w))); }
  // Largest element
-  FI constexpr T large()        const { return TERN(HAS_X_AXIS, _MAX(NUM_AXIS_LIST(x, y, z, i, j, k, u, v, w)), 0); }
+  FI constexpr T large()        const { return TERN0(HAS_X_AXIS, _MAX(NUM_AXIS_LIST(x, y, z, i, j, k, u, v, w))); }

  // Explicit copy and copies with conversion
  FI constexpr XYZval<T>           copy() const { XYZval<T> o = *this; return o; }
@@ -1084,6 +1091,7 @@ public:
  FI bool toggle(const AxisEnum n) { TBI(bits, n); return TEST(bits, n); }
  FI void bset(const AxisEnum n) { SBI(bits, n); }
  FI void bclr(const AxisEnum n) { CBI(bits, n); }
+  FI void bset(const AxisEnum n, const bool b) { if (b) bset(n); else bclr(n); }

  // Accessor via an AxisEnum (or any integer) [index]
  FI bool operator[](const int n) const { return TEST(bits, n); }
@@ -25,6 +25,10 @@
 #include "../MarlinCore.h"
 #include "../module/temperature.h"

+#if ENABLED(MARLIN_DEV_MODE)
+  MarlinError marlin_error_number;    // Error Number - Marlin can beep X times periodically, display, and emit...
+#endif
+
 void safe_delay(millis_t ms) {
  while (ms > 50) {
    ms -= 50;
@@ -76,6 +80,8 @@ void safe_delay(millis_t ms) {
      TERN_(Z_PROBE_ALLEN_KEY, "Z_PROBE_ALLEN_KEY")
      TERN_(SOLENOID_PROBE, "SOLENOID_PROBE")
      TERN_(MAGLEV4, "MAGLEV4")
+      TERN_(BIQU_MICROPROBE_V1, "BIQU_MICROPROBE_V1")
+      TERN_(BIQU_MICROPROBE_V2, "BIQU_MICROPROBE_V2")
      IF_DISABLED(PROBE_SELECTED, "NONE")
    );

@@ -95,9 +101,9 @@ void safe_delay(millis_t ms) {
          SERIAL_ECHOPGM(" (Aligned With");

        if (probe.offset_xy.y > 0)
-          SERIAL_ECHOPGM(TERN(IS_SCARA, "-Distal", "-Back"));
+          SERIAL_ECHO(F(TERN(IS_SCARA, "-Distal", "-Back")));
        else if (probe.offset_xy.y < 0)
-          SERIAL_ECHOPGM(TERN(IS_SCARA, "-Proximal", "-Front"));
+          SERIAL_ECHO(F(TERN(IS_SCARA, "-Proximal", "-Front")));
        else if (probe.offset_xy.x != 0)
          SERIAL_ECHOPGM("-Center");

@@ -105,7 +111,7 @@ void safe_delay(millis_t ms) {

      #endif

-      SERIAL_ECHOF(probe.offset.z < 0 ? F("Below") : probe.offset.z > 0 ? F("Above") : F("Same Z as"));
+      SERIAL_ECHO(probe.offset.z < 0 ? F("Below") : probe.offset.z > 0 ? F("Above") : F("Same Z as"));
      SERIAL_ECHOLNPGM(" Nozzle)");

    #endif
@@ -46,10 +46,16 @@ BDS_Leveling bdl;
 #define DEBUG_OUT ENABLED(DEBUG_OUT_BD)
 #include "../../../core/debug_out.h"

-// M102 S-5   Read raw Calibrate data
-// M102 S-6   Start Calibrate
-// M102 S4    Set the adjustable Z height value (e.g., 'M102 S4' means it will do adjusting while the Z height <= 0.4mm , disable with 'M102 S0'.)
-// M102 S-1   Read sensor information
+/**
+ * M102 S<#> : Set adjustable Z height in 0.1mm units (10ths of a mm)
+ *             (e.g., 'M102 S4' enables adjusting for Z <= 0.4mm)
+ * M102 S0   : Disable adjustable Z height
+ *
+ * M102 S-1  : Read BDsensor version
+ * M102 S-2  : Read BDsensor distance value
+ * M102 S-5  : Read raw Calibration data
+ * M102 S-6  : Start Calibration
+ */

 #define MAX_BD_HEIGHT                 4.0f
 #define CMD_READ_VERSION              1016
@@ -765,7 +765,7 @@ void unified_bed_leveling::shift_mesh_height() {

      const grid_count_t point_num = (GRID_MAX_POINTS - count) + 1;
      SERIAL_ECHOLNPGM("Probing mesh point ", point_num, "/", GRID_MAX_POINTS, ".");
-      TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT(MSG_PROBING_POINT), point_num, int(GRID_MAX_POINTS)));
+      TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT_F(MSG_PROBING_POINT), point_num, int(GRID_MAX_POINTS)));
      TERN_(HAS_BACKLIGHT_TIMEOUT, ui.refresh_backlight_timeout());

      #if HAS_MARLINUI_MENU
@@ -1494,7 +1494,7 @@ void unified_bed_leveling::smart_fill_mesh() {

      for (uint8_t i = 0; i < 3; ++i) {
        SERIAL_ECHOLNPGM("Tilting mesh (", i + 1, "/3)");
-        TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/3"), GET_TEXT(MSG_LCD_TILTING_MESH), i + 1));
+        TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/3"), GET_TEXT_F(MSG_LCD_TILTING_MESH), i + 1));

        measured_z = probe.probe_at_point(points[i], i < 2 ? PROBE_PT_RAISE : PROBE_PT_LAST_STOW, param.V_verbosity);
        if ((abort_flag = isnan(measured_z))) break;
@@ -1550,7 +1550,7 @@ void unified_bed_leveling::smart_fill_mesh() {
          #endif

          SERIAL_ECHOLNPGM("Tilting mesh point ", point_num, "/", total_points, "\n");
-          TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT(MSG_LCD_TILTING_MESH), point_num, total_points));
+          TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT_F(MSG_LCD_TILTING_MESH), point_num, total_points));

          measured_z = probe.probe_at_point(rpos, parser.seen_test('E') ? PROBE_PT_STOW : PROBE_PT_RAISE, param.V_verbosity); // TODO: Needs error handling

@@ -137,7 +137,7 @@ void FWRetract::retract(const bool retracting E_OPTARG(bool swapping/*=false*/))
    // Retract by moving from a faux E position back to the current E position
    current_retract[active_extruder] = base_retract;
    prepare_internal_move_to_destination(                 // set current from destination
-      settings.retract_feedrate_mm_s * TERN1(RETRACT_SYNC_MIXING, (MIXING_STEPPERS))
+      MUL_TERN(RETRACT_SYNC_MIXING, settings.retract_feedrate_mm_s, MIXING_STEPPERS)
    );

    // Is a Z hop set, and has the hop not yet been done?
@@ -165,8 +165,7 @@ void FWRetract::retract(const bool retracting E_OPTARG(bool swapping/*=false*/))

    // Recover E, set_current_to_destination
    prepare_internal_move_to_destination(
-      (swapping ? settings.swap_retract_recover_feedrate_mm_s : settings.retract_recover_feedrate_mm_s)
-      * TERN1(RETRACT_SYNC_MIXING, (MIXING_STEPPERS))
+      MUL_TERN(RETRACT_SYNC_MIXING, swapping ? settings.swap_retract_recover_feedrate_mm_s : settings.retract_recover_feedrate_mm_s, MIXING_STEPPERS)
    );
  }

@@ -197,7 +197,7 @@ void HostUI::action(FSTR_P const fstr, const bool eol) {
            #endif
            #if HAS_FILAMENT_SENSOR
              if (runout.filament_ran_out) {                      // Disable a triggered sensor
-                runout.enabled[active_extruder] = false;
+                runout.enabled = false;
                runout.reset();
              }
            #endif
@@ -130,7 +130,7 @@ public:
  }

  // Accessors
-  static uint16_t pixels() { return adaneo1.numPixels() * TERN1(NEOPIXEL2_INSERIES, 2); }
+  static uint16_t pixels() { return MUL_TERN(NEOPIXEL2_INSERIES, adaneo1.numPixels(), 2); }

  static uint32_t pixel_color(const uint16_t n) {
    #if ENABLED(NEOPIXEL2_INSERIES)
@@ -76,7 +76,7 @@ MMU2 mmu2;
 #define MMU2_NO_TOOL 99
 #define MMU_BAUD    115200

-bool MMU2::_enabled, MMU2::ready, MMU2::mmu_print_saved;
+bool MMU2::_enabled, MMU2::ready;
 #if HAS_PRUSA_MMU2S
  bool MMU2::mmu2s_triggered;
 #endif
@@ -84,7 +84,6 @@ uint8_t MMU2::cmd, MMU2::cmd_arg, MMU2::last_cmd, MMU2::extruder;
 int8_t MMU2::state = 0;
 volatile int8_t MMU2::finda = 1;
 volatile bool MMU2::finda_runout_valid;
-int16_t MMU2::version = -1, MMU2::buildnr = -1;
 millis_t MMU2::prev_request, MMU2::prev_P0_request;
 char MMU2::rx_buffer[MMU_RX_SIZE], MMU2::tx_buffer[MMU_TX_SIZE];

@@ -93,14 +92,11 @@ struct E_Step {
  feedRate_t feedRate;  //!< feed rate in mm/s
 };

-static constexpr E_Step
-    ramming_sequence[] PROGMEM = { MMU2_RAMMING_SEQUENCE }
-  , load_to_nozzle_sequence[] PROGMEM = { MMU2_LOAD_TO_NOZZLE_SEQUENCE }
-  #if HAS_PRUSA_MMU2S
-    , can_load_sequence[] PROGMEM = { MMU2_CAN_LOAD_SEQUENCE }
-    , can_load_increment_sequence[] PROGMEM = { MMU2_CAN_LOAD_INCREMENT_SEQUENCE }
-  #endif
-;
+inline void unscaled_mmu2_e_move(const float &dist, const feedRate_t fr_mm_s, const bool sync=true) {
+  current_position.e += dist / planner.e_factor[active_extruder];
+  line_to_current_position(fr_mm_s);
+  if (sync) planner.synchronize();
+}

 MMU2::MMU2() {
  rx_buffer[0] = '\0';
@@ -136,12 +132,12 @@ void MMU2::reset() {
  #endif
 }

-uint8_t MMU2::get_current_tool() {
-  return extruder == MMU2_NO_TOOL ? -1 : extruder;
-}
+int8_t MMU2::get_current_tool() { return extruder == MMU2_NO_TOOL ? -1 : extruder; }

-#if EITHER(HAS_PRUSA_MMU2S, MMU_EXTRUDER_SENSOR)
-  #define FILAMENT_PRESENT() (READ(FIL_RUNOUT1_PIN) != runout.out_state())
+#if ANY(HAS_PRUSA_MMU2S, MMU_EXTRUDER_SENSOR)
+  #define FILAMENT_PRESENT() (READ(FIL_RUNOUT1_PIN) != FIL_RUNOUT1_STATE)
+#else
+  #define FILAMENT_PRESENT() true
 #endif

 void mmu2_attn_buzz(const bool two=false) {
@@ -149,6 +145,7 @@ void mmu2_attn_buzz(const bool two=false) {
  if (two) { BUZZ(10, 0); BUZZ(200, 404); }
 }

+// Avoiding sscanf significantly reduces build size
 void MMU2::mmu_loop() {

  switch (state) {
@@ -163,7 +160,7 @@ void MMU2::mmu_loop() {
        MMU2_SEND("S1");    // Read Version
        state = -2;
      }
-      else if (millis() > 30000) { // 30sec after reset disable MMU
+      else if (ELAPSED(millis(), prev_request + 30000)) { // 30sec after reset disable MMU
        SERIAL_ECHOLNPGM("MMU not responding - DISABLED");
        state = 0;
      }
@@ -171,7 +168,7 @@ void MMU2::mmu_loop() {

    case -2:
      if (rx_ok()) {
-        sscanf(rx_buffer, "%huok\n", &version);
+        const uint16_t version = uint16_t(strtoul(rx_buffer, nullptr, 10));
        DEBUG_ECHOLNPGM("MMU => ", version, "\nMMU <= 'S2'");
        MMU2_SEND("S2");    // Read Build Number
        state = -3;
@@ -180,17 +177,15 @@ void MMU2::mmu_loop() {

    case -3:
      if (rx_ok()) {
-        sscanf(rx_buffer, "%huok\n", &buildnr);
-
+        const uint16_t buildnr = uint16_t(strtoul(rx_buffer, nullptr, 10));
        DEBUG_ECHOLNPGM("MMU => ", buildnr);

-        check_version();
+        check_version(buildnr);

        #if ENABLED(MMU2_MODE_12V)
          DEBUG_ECHOLNPGM("MMU <= 'M1'");
          MMU2_SEND("M1");    // Stealth Mode
          state = -5;
-
        #else
          DEBUG_ECHOLNPGM("MMU <= 'P0'");
          MMU2_SEND("P0");    // Read FINDA
@@ -200,20 +195,21 @@ void MMU2::mmu_loop() {
      break;

    #if ENABLED(MMU2_MODE_12V)
-    case -5:
-      // response to M1
-      if (rx_ok()) {
-        DEBUG_ECHOLNPGM("MMU => ok");
-        DEBUG_ECHOLNPGM("MMU <= 'P0'");
-        MMU2_SEND("P0");    // Read FINDA
-        state = -4;
-      }
-      break;
+      case -5:
+        // response to M1
+        if (rx_ok()) {
+          DEBUG_ECHOLNPGM("MMU => ok");
+          DEBUG_ECHOLNPGM("MMU <= 'P0'");
+          MMU2_SEND("P0");    // Read FINDA
+          state = -4;
+        }
+        break;
    #endif

    case -4:
      if (rx_ok()) {
-        sscanf(rx_buffer, "%hhuok\n", &finda);
+        const uint8_t findex = uint8_t(rx_buffer[0] - '0');
+        if (findex <= 1) finda = findex;

        DEBUG_ECHOLNPGM("MMU => ", finda, "\nMMU - ENABLED");

@@ -286,10 +282,11 @@ void MMU2::mmu_loop() {

    case 2:   // response to command P0
      if (rx_ok()) {
-        sscanf(rx_buffer, "%hhuok\n", &finda);
+        const uint8_t findex = uint8_t(rx_buffer[0] - '0');
+        if (findex <= 1) finda = findex;

        // This is super annoying. Only activate if necessary
-        // if (finda_runout_valid) DEBUG_ECHOLNPAIR_F("MMU <= 'P0'\nMMU => ", finda, 6);
+        //if (finda_runout_valid) DEBUG_ECHOLNPGM("MMU <= 'P0'\nMMU => ", p_float_t(finda, 6));

        if (!finda && finda_runout_valid) filament_runout();
        if (cmd == MMU_CMD_NONE) ready = true;
@@ -406,7 +403,7 @@ void MMU2::tx_str(FSTR_P fstr) {
 void MMU2::tx_printf(FSTR_P format, int argument = -1) {
  clear_rx_buffer();
  const uint8_t len = sprintf_P(tx_buffer, FTOP(format), argument);
-  LOOP_L_N(i, len) MMU2_SERIAL.write(tx_buffer[i]);
+  for (uint8_t i = 0; i < len; ++i) MMU2_SERIAL.write(tx_buffer[i]);
  prev_request = millis();
 }

@@ -416,7 +413,7 @@ void MMU2::tx_printf(FSTR_P format, int argument = -1) {
 void MMU2::tx_printf(FSTR_P format, int argument1, int argument2) {
  clear_rx_buffer();
  const uint8_t len = sprintf_P(tx_buffer, FTOP(format), argument1, argument2);
-  LOOP_L_N(i, len) MMU2_SERIAL.write(tx_buffer[i]);
+  for (uint8_t i = 0; i < len; ++i) MMU2_SERIAL.write(tx_buffer[i]);
  prev_request = millis();
 }

@@ -442,7 +439,7 @@ bool MMU2::rx_ok() {
 /**
 * Check if MMU has compatible firmware
 */
-void MMU2::check_version() {
+void MMU2::check_version(const uint16_t buildnr) {
  if (buildnr < MMU_REQUIRED_FW_BUILDNR) {
    SERIAL_ERROR_MSG("Invalid MMU2 firmware. Version >= " STRINGIFY(MMU_REQUIRED_FW_BUILDNR) " required.");
    kill(GET_TEXT_F(MSG_KILL_MMU2_FIRMWARE));
@@ -458,12 +455,19 @@ static void mmu2_not_responding() {
  BUZZ(100, 659);
 }

+inline void beep_bad_cmd() { BUZZ(400, 40); }
+
 #if HAS_PRUSA_MMU2S

+  /**
+   * Load filament until the sensor at the gears is triggered
+   * and give up after a number of attempts set with MMU2_C0_RETRY.
+   * Each try has a timeout before returning a fail state.
+   */
  bool MMU2::load_to_gears() {
    command(MMU_CMD_C0);
    manage_response(true, true);
-    LOOP_L_N(i, MMU2_C0_RETRY) {  // Keep loading until filament reaches gears
+    for (uint8_t i = 0; i < MMU2_C0_RETRY; ++i) {  // Keep loading until filament reaches gears
      if (mmu2s_triggered) break;
      command(MMU_CMD_C0);
      manage_response(true, true);
@@ -484,6 +488,11 @@ static void mmu2_not_responding() {
    set_runout_valid(false);

    if (index != extruder) {
+      if (ENABLED(MMU_IR_UNLOAD_MOVE) && FILAMENT_PRESENT()) {
+        DEBUG_ECHOLNPGM("Unloading\n");
+        while (FILAMENT_PRESENT())                      // Filament present? Keep unloading.
+          unscaled_mmu2_e_move(-0.25, MMM_TO_MMS(120)); // 0.25mm is a guessed value. Adjust to preference.
+      }

      stepper.disable_extruder();
      ui.status_printf(0, GET_TEXT_F(MSG_MMU2_LOADING_FILAMENT), int(index + 1));
@@ -520,9 +529,9 @@ static void mmu2_not_responding() {
          #if ENABLED(MMU2_MENUS)
            const uint8_t index = mmu2_choose_filament();
            while (!thermalManager.wait_for_hotend(active_extruder, false)) safe_delay(100);
-            load_filament_to_nozzle(index);
+            load_to_nozzle(index);
          #else
-            ERR_BUZZ();
+            beep_bad_cmd();
          #endif
        } break;

@@ -541,13 +550,13 @@ static void mmu2_not_responding() {
              active_extruder = 0;
            }
          #else
-            ERR_BUZZ();
+            beep_bad_cmd();
          #endif
        } break;

        case 'c': {
          while (!thermalManager.wait_for_hotend(active_extruder, false)) safe_delay(100);
-          load_to_nozzle();
+          load_to_nozzle_sequence();
        } break;
      }

@@ -608,9 +617,9 @@ static void mmu2_not_responding() {
        #if ENABLED(MMU2_MENUS)
          uint8_t index = mmu2_choose_filament();
          while (!thermalManager.wait_for_hotend(active_extruder, false)) safe_delay(100);
-          load_filament_to_nozzle(index);
+          load_to_nozzle(index);
        #else
-          ERR_BUZZ();
+          beep_bad_cmd();
        #endif
      } break;

@@ -630,14 +639,14 @@ static void mmu2_not_responding() {
          extruder = index;
          active_extruder = 0;
        #else
-          ERR_BUZZ();
+          beep_bad_cmd();
        #endif
      } break;

      case 'c': {
        DEBUG_ECHOLNPGM("case c\n");
        while (!thermalManager.wait_for_hotend(active_extruder, false)) safe_delay(100);
-        execute_extruder_sequence((const E_Step *)load_to_nozzle_sequence, COUNT(load_to_nozzle_sequence));
+        load_to_nozzle_sequence();
      } break;
    }

@@ -723,9 +732,9 @@ static void mmu2_not_responding() {
        #if ENABLED(MMU2_MENUS)
          uint8_t index = mmu2_choose_filament();
          while (!thermalManager.wait_for_hotend(active_extruder, false)) safe_delay(100);
-          load_filament_to_nozzle(index);
+          load_to_nozzle(index);
        #else
-          ERR_BUZZ();
+          beep_bad_cmd();
        #endif
      } break;

@@ -744,14 +753,14 @@ static void mmu2_not_responding() {
          extruder = index;
          active_extruder = 0;
        #else
-          ERR_BUZZ();
+          beep_bad_cmd();
        #endif
      } break;

      case 'c': {
        DEBUG_ECHOLNPGM("case c\n");
        while (!thermalManager.wait_for_hotend(active_extruder, false)) safe_delay(100);
-        execute_extruder_sequence((const E_Step *)load_to_nozzle_sequence, COUNT(load_to_nozzle_sequence));
+        load_to_nozzle_sequence();
      } break;
    }

@@ -792,8 +801,7 @@ bool MMU2::get_response() {
 void MMU2::manage_response(const bool move_axes, const bool turn_off_nozzle) {

  constexpr xyz_pos_t park_point = NOZZLE_PARK_POINT;
-  bool response = false;
-  mmu_print_saved = false;
+  bool response = false, mmu_print_saved = false;
  xyz_pos_t resume_position;
  celsius_t resume_hotend_temp = thermalManager.degTargetHotend(active_extruder);

@@ -815,8 +823,7 @@ void MMU2::manage_response(const bool move_axes, const bool turn_off_nozzle) {
        resume_hotend_temp = thermalManager.degTargetHotend(active_extruder);
        resume_position = current_position;

-        if (move_axes && all_axes_homed())
-          nozzle.park(0, park_point /*= NOZZLE_PARK_POINT*/);
+        if (move_axes && all_axes_homed()) nozzle.park(0, park_point);

        if (turn_off_nozzle) thermalManager.setTargetHotend(0, active_extruder);

@@ -824,13 +831,12 @@ void MMU2::manage_response(const bool move_axes, const bool turn_off_nozzle) {
      }
    }
    else if (mmu_print_saved) {
-      SERIAL_ECHOLNPGM("MMU starts responding\n");
+      SERIAL_ECHOLNPGM("\nMMU starts responding");

      if (turn_off_nozzle && resume_hotend_temp) {
        thermalManager.setTargetHotend(resume_hotend_temp, active_extruder);
        LCD_MESSAGE(MSG_HEATING);
        ERR_BUZZ();
-
        while (!thermalManager.wait_for_hotend(active_extruder, false)) safe_delay(1000);
      }

@@ -843,7 +849,6 @@ void MMU2::manage_response(const bool move_axes, const bool turn_off_nozzle) {
      if (move_axes && all_axes_homed()) {
        // Move XY to starting position, then Z
        do_blocking_move_to_xy(resume_position, feedRate_t(NOZZLE_PARK_XY_FEEDRATE));
-
        // Move Z_AXIS to saved position
        do_blocking_move_to_z(resume_position.z, feedRate_t(NOZZLE_PARK_Z_FEEDRATE));
      }
@@ -878,23 +883,24 @@ void MMU2::filament_runout() {
      }
      // Slowly spin the extruder during C0
      else {
-        while (planner.movesplanned() < 3) {
-          current_position.e += 0.25;
-          line_to_current_position(MMM_TO_MMS(120));
-        }
+        while (planner.movesplanned() < 3)
+          unscaled_mmu2_e_move(0.25, MMM_TO_MMS(120), false);
      }
    }
    mmu2s_triggered = present;
  }

  bool MMU2::can_load() {
-    execute_extruder_sequence((const E_Step *)can_load_sequence, COUNT(can_load_sequence));
+    static const E_Step can_load_sequence[] PROGMEM = { MMU2_CAN_LOAD_SEQUENCE },
+                        can_load_increment_sequence[] PROGMEM = { MMU2_CAN_LOAD_INCREMENT_SEQUENCE };
+
+    execute_extruder_sequence(can_load_sequence, COUNT(can_load_sequence));

    int filament_detected_count = 0;
    const int steps = (MMU2_CAN_LOAD_RETRACT) / (MMU2_CAN_LOAD_INCREMENT);
    DEBUG_ECHOLNPGM("MMU can_load:");
-    LOOP_L_N(i, steps) {
-      execute_extruder_sequence((const E_Step *)can_load_increment_sequence, COUNT(can_load_increment_sequence));
+    for (uint8_t i = 0; i < steps; ++i) {
+      execute_extruder_sequence(can_load_increment_sequence, COUNT(can_load_increment_sequence));
      check_filament(); // Don't trust the idle function
      DEBUG_CHAR(mmu2s_triggered ? 'O' : 'o');
      if (mmu2s_triggered) ++filament_detected_count;
@@ -912,7 +918,7 @@ void MMU2::filament_runout() {
 #endif

 // Load filament into MMU2
-void MMU2::load_filament(const uint8_t index) {
+void MMU2::load_to_feeder(const uint8_t index) {
  if (!_enabled) return;

  command(MMU_CMD_L0 + index);
@@ -923,8 +929,7 @@ void MMU2::load_filament(const uint8_t index) {
 /**
 * Switch material and load to nozzle
 */
-bool MMU2::load_filament_to_nozzle(const uint8_t index) {
-
+bool MMU2::load_to_nozzle(const uint8_t index) {
  if (!_enabled) return false;

  if (thermalManager.tooColdToExtrude(active_extruder)) {
@@ -933,6 +938,13 @@ bool MMU2::load_filament_to_nozzle(const uint8_t index) {
    return false;
  }

+  if (TERN0(MMU_IR_UNLOAD_MOVE, index != extruder) && FILAMENT_PRESENT()) {
+    DEBUG_ECHOLNPGM("Unloading\n");
+    ramming_sequence();                             // Unloading instructions from printer side when operating LCD
+    while (FILAMENT_PRESENT())                      // Filament present? Keep unloading.
+      unscaled_mmu2_e_move(-0.25, MMM_TO_MMS(120)); // 0.25mm is a guessed value. Adjust to preference.
+  }
+
  stepper.disable_extruder();
  command(MMU_CMD_T0 + index);
  manage_response(true, true);
@@ -942,23 +954,12 @@ bool MMU2::load_filament_to_nozzle(const uint8_t index) {
    mmu_loop();
    extruder = index;
    active_extruder = 0;
-    load_to_nozzle();
+    load_to_nozzle_sequence();
    mmu2_attn_buzz();
  }
  return success;
 }

-/**
- * Load filament to nozzle of multimaterial printer
- *
- * This function is used only after T? (user select filament) and M600 (change filament).
- * It is not used after T0 .. T4 command (select filament), in such case, G-code is responsible for loading
- * filament to nozzle.
- */
-void MMU2::load_to_nozzle() {
-  execute_extruder_sequence((const E_Step *)load_to_nozzle_sequence, COUNT(load_to_nozzle_sequence));
-}
-
 bool MMU2::eject_filament(const uint8_t index, const bool recover) {

  if (!_enabled) return false;
@@ -971,20 +972,17 @@ bool MMU2::eject_filament(const uint8_t index, const bool recover) {

  LCD_MESSAGE(MSG_MMU2_EJECTING_FILAMENT);

-  stepper.enable_extruder();
-  current_position.e -= MMU2_FILAMENTCHANGE_EJECT_FEED;
-  line_to_current_position(MMM_TO_MMS(2500));
-  planner.synchronize();
+  unscaled_mmu2_e_move(-(MMU2_FILAMENTCHANGE_EJECT_FEED), MMM_TO_MMS(2500));
  command(MMU_CMD_E0 + index);
  manage_response(false, false);

  if (recover)  {
-    LCD_MESSAGE(MSG_MMU2_EJECT_RECOVER);
+    LCD_MESSAGE(MSG_MMU2_REMOVE_AND_CLICK);
    mmu2_attn_buzz();
-    TERN_(HOST_PROMPT_SUPPORT, hostui.prompt_do(PROMPT_USER_CONTINUE, F("MMU2 Eject Recover"), FPSTR(CONTINUE_STR)));
-    TERN_(EXTENSIBLE_UI, ExtUI::onUserConfirmRequired(F("MMU2 Eject Recover")));
+    TERN_(HOST_PROMPT_SUPPORT, hostui.continue_prompt(GET_TEXT_F(MSG_MMU2_EJECT_RECOVER)));
+    TERN_(EXTENSIBLE_UI, ExtUI::onUserConfirmRequired(GET_TEXT_F(MSG_MMU2_EJECT_RECOVER)));
    TERN_(HAS_RESUME_CONTINUE, wait_for_user_response());
-    mmu2_attn_buzz(true);
+    mmu2_attn_buzz();

    command(MMU_CMD_R0);
    manage_response(false, false);
@@ -1018,7 +1016,7 @@ bool MMU2::unload() {
  }

  // Unload sequence to optimize shape of the tip of the unloaded filament
-  execute_extruder_sequence((const E_Step *)ramming_sequence, sizeof(ramming_sequence) / sizeof(E_Step));
+  ramming_sequence();

  command(MMU_CMD_U0);
  manage_response(false, true);
@@ -1033,23 +1031,26 @@ bool MMU2::unload() {
  return true;
 }

+void MMU2::ramming_sequence() {
+  static const E_Step sequence[] PROGMEM = { MMU2_RAMMING_SEQUENCE };
+  execute_extruder_sequence(sequence, COUNT(sequence));
+}
+
+void MMU2::load_to_nozzle_sequence() {
+  static const E_Step sequence[] PROGMEM = { MMU2_LOAD_TO_NOZZLE_SEQUENCE };
+  execute_extruder_sequence(sequence, COUNT(sequence));
+}
+
 void MMU2::execute_extruder_sequence(const E_Step * sequence, int steps) {
-
  planner.synchronize();
-  stepper.enable_extruder();

-  const E_Step* step = sequence;
+  const E_Step *step = sequence;

-  LOOP_L_N(i, steps) {
+  for (uint8_t i = 0; i < steps; ++i) {
    const float es = pgm_read_float(&(step->extrude));
    const feedRate_t fr_mm_m = pgm_read_float(&(step->feedRate));
-
    DEBUG_ECHO_MSG("E step ", es, "/", fr_mm_m);
-
-    current_position.e += es;
-    line_to_current_position(MMM_TO_MMS(fr_mm_m));
-    planner.synchronize();
-
+    unscaled_mmu2_e_move(es, MMM_TO_MMS(fr_mm_m));
    step++;
  }

@@ -23,6 +23,8 @@
 /**
 * feature/pause.cpp - Pause feature support functions
 * This may be combined with related G-codes if features are consolidated.
+ *
+ * Note: Calls to ui.pause_show_message are passed to either ExtUI or MarlinUI.
 */

 #include "../inc/MarlinConfigPre.h"
@@ -60,8 +62,6 @@

 #if ENABLED(EXTENSIBLE_UI)
  #include "../lcd/extui/ui_api.h"
-#elif ENABLED(DWIN_LCD_PROUI)
-  #include "../lcd/e3v2/proui/dwin.h"
 #endif

 #include "../lcd/marlinui.h"
@@ -89,9 +89,11 @@ static xyze_pos_t resume_position;
  PauseMode pause_mode = PAUSE_MODE_PAUSE_PRINT;
 #endif

-fil_change_settings_t fc_settings[EXTRUDERS];
+#if ENABLED(CONFIGURE_FILAMENT_CHANGE)
+  fil_change_settings_t fc_settings[EXTRUDERS];
+#endif

-#if ENABLED(SDSUPPORT)
+#if HAS_MEDIA
  #include "../sd/cardreader.h"
 #endif

@@ -146,7 +148,7 @@ static bool ensure_safe_temperature(const bool wait=true, const PauseMode mode=P
      thermalManager.setTargetHotend(thermalManager.extrude_min_temp, active_extruder);
  #endif

-  ui.pause_show_message(PAUSE_MESSAGE_HEATING, mode); UNUSED(mode);
+  ui.pause_show_message(PAUSE_MESSAGE_HEATING, mode);

  if (wait) return thermalManager.wait_for_hotend(active_extruder);

@@ -201,7 +203,7 @@ bool load_filament(const_float_t slow_load_length/*=0*/, const_float_t fast_load
    KEEPALIVE_STATE(PAUSED_FOR_USER);
    wait_for_user = true;    // LCD click or M108 will clear this

-    TERN_(EXTENSIBLE_UI, ExtUI::onUserConfirmRequired(F("Load Filament")));
+    TERN_(EXTENSIBLE_UI, ExtUI::onUserConfirmRequired(GET_TEXT_F(MSG_FILAMENTLOAD)));

    #if ENABLED(HOST_PROMPT_SUPPORT)
      const char tool = '0' + TERN0(MULTI_FILAMENT_SENSOR, active_extruder);
@@ -210,23 +212,14 @@ bool load_filament(const_float_t slow_load_length/*=0*/, const_float_t fast_load

    while (wait_for_user) {
      impatient_beep(max_beep_count);
-      #if BOTH(FILAMENT_CHANGE_RESUME_ON_INSERT, FILAMENT_RUNOUT_SENSOR)
+      #if ALL(FILAMENT_CHANGE_RESUME_ON_INSERT, FILAMENT_RUNOUT_SENSOR)
        #if MULTI_FILAMENT_SENSOR
-          LOOP_S_LE_N(i, 1, NUM_RUNOUT_SENSORS) {
-            pin_t pin;
-            switch (i) {
-              default: continue;
-              #define _CASE_RUNOUT(N) case N: pin = FIL_RUNOUT##N##_PIN; break;
-              REPEAT_1(NUM_RUNOUT_SENSORS, _CASE_RUNOUT)
-              #undef _CASE_RUNOUT
-            }
-            const RunoutMode rm = runout.mode[i - 1];
-            if (rm != RM_NONE && rm != RM_MOTION_SENSOR && extDigitalRead(pin) != runout.out_state(i - 1))
-              wait_for_user = false;
+          #define _CASE_INSERTED(N) case N-1: if (READ(FIL_RUNOUT##N##_PIN) != FIL_RUNOUT##N##_STATE) wait_for_user = false; break;
+          switch (active_extruder) {
+            REPEAT_1(NUM_RUNOUT_SENSORS, _CASE_INSERTED)
          }
        #else
-          if (READ(FIL_RUNOUT_PIN) != runout.out_state(active_extruder))
-            wait_for_user = false;
+          if (READ(FIL_RUNOUT_PIN) != FIL_RUNOUT_STATE) wait_for_user = false;
        #endif
      #endif
      idle_no_sleep();
@@ -243,6 +236,8 @@ bool load_filament(const_float_t slow_load_length/*=0*/, const_float_t fast_load

  TERN_(BELTPRINTER, do_blocking_move_to_xy(0.00, 50.00));

+  TERN_(MPCTEMP, MPC::e_paused = true);
+
  // Slow Load filament
  if (slow_load_length) unscaled_e_move(slow_load_length, FILAMENT_CHANGE_SLOW_LOAD_FEEDRATE);

@@ -269,7 +264,7 @@ bool load_filament(const_float_t slow_load_length/*=0*/, const_float_t fast_load
    if (show_lcd) ui.pause_show_message(PAUSE_MESSAGE_PURGE);

    TERN_(EXTENSIBLE_UI, ExtUI::onUserConfirmRequired(GET_TEXT_F(MSG_FILAMENT_CHANGE_PURGE)));
-    TERN_(HOST_PROMPT_SUPPORT, hostui.prompt_do(PROMPT_USER_CONTINUE, GET_TEXT_F(MSG_FILAMENT_CHANGE_PURGE), FPSTR(CONTINUE_STR)));
+    TERN_(HOST_PROMPT_SUPPORT, hostui.continue_prompt(GET_TEXT_F(MSG_FILAMENT_CHANGE_PURGE)));
    wait_for_user = true; // A click or M108 breaks the purge_length loop
    for (float purge_count = purge_length; purge_count > 0 && wait_for_user; --purge_count)
      unscaled_e_move(1, ADVANCED_PAUSE_PURGE_FEEDRATE);
@@ -293,8 +288,8 @@ bool load_filament(const_float_t slow_load_length/*=0*/, const_float_t fast_load
          // Show "Purge More" / "Resume" menu and wait for reply
          KEEPALIVE_STATE(PAUSED_FOR_USER);
          wait_for_user = false;
-          #if EITHER(HAS_MARLINUI_MENU, DWIN_LCD_PROUI)
-            ui.pause_show_message(PAUSE_MESSAGE_OPTION); // Also sets PAUSE_RESPONSE_WAIT_FOR
+          #if ANY(HAS_MARLINUI_MENU, EXTENSIBLE_UI)
+            ui.pause_show_message(PAUSE_MESSAGE_OPTION); // MarlinUI and MKS UI also set PAUSE_RESPONSE_WAIT_FOR
          #else
            pause_menu_response = PAUSE_RESPONSE_WAIT_FOR;
          #endif
@@ -306,6 +301,9 @@ bool load_filament(const_float_t slow_load_length/*=0*/, const_float_t fast_load
    } while (TERN0(M600_PURGE_MORE_RESUMABLE, pause_menu_response == PAUSE_RESPONSE_EXTRUDE_MORE));

  #endif
+
+  TERN_(MPCTEMP, MPC::e_paused = false);
+
  TERN_(HOST_PROMPT_SUPPORT, hostui.prompt_end());

  return true;
@@ -335,18 +333,18 @@ inline void disable_active_extruder() {
 */
 bool unload_filament(const_float_t unload_length, const bool show_lcd/*=false*/,
                     const PauseMode mode/*=PAUSE_MODE_PAUSE_PRINT*/
-                     #if BOTH(FILAMENT_UNLOAD_ALL_EXTRUDERS, MIXING_EXTRUDER)
+                     #if ALL(FILAMENT_UNLOAD_ALL_EXTRUDERS, MIXING_EXTRUDER)
                       , const_float_t mix_multiplier/*=1.0*/
                     #endif
 ) {
  DEBUG_SECTION(uf, "unload_filament", true);
  DEBUG_ECHOLNPGM("... unloadlen:", unload_length, " showlcd:", show_lcd, " mode:", mode
-    #if BOTH(FILAMENT_UNLOAD_ALL_EXTRUDERS, MIXING_EXTRUDER)
+    #if ALL(FILAMENT_UNLOAD_ALL_EXTRUDERS, MIXING_EXTRUDER)
      , " mixmult:", mix_multiplier
    #endif
  );

-  #if !BOTH(FILAMENT_UNLOAD_ALL_EXTRUDERS, MIXING_EXTRUDER)
+  #if !ALL(FILAMENT_UNLOAD_ALL_EXTRUDERS, MIXING_EXTRUDER)
    constexpr float mix_multiplier = 1.0f;
  #endif

@@ -406,8 +404,6 @@ bool pause_print(const_float_t retract, const xyz_pos_t &park_point, const bool
  DEBUG_SECTION(pp, "pause_print", true);
  DEBUG_ECHOLNPGM("... park.x:", park_point.x, " y:", park_point.y, " z:", park_point.z, " unloadlen:", unload_length, " showlcd:", show_lcd DXC_SAY);

-  UNUSED(show_lcd);
-
  if (did_pause_print) return false; // already paused

  #if ENABLED(HOST_ACTION_COMMANDS)
@@ -419,13 +415,12 @@ bool pause_print(const_float_t retract, const xyz_pos_t &park_point, const bool
  #endif

  TERN_(HOST_PROMPT_SUPPORT, hostui.prompt_open(PROMPT_INFO, F("Pause"), FPSTR(DISMISS_STR)));
-  TERN_(DWIN_LCD_PROUI, DWIN_Print_Pause());

  // Indicate that the printer is paused
  ++did_pause_print;

  // Pause the print job and timer
-  #if ENABLED(SDSUPPORT)
+  #if HAS_MEDIA
    const bool was_sd_printing = IS_SD_PRINTING();
    if (was_sd_printing) {
      card.pauseSDPrint();
@@ -450,7 +445,7 @@ bool pause_print(const_float_t retract, const xyz_pos_t &park_point, const bool
  // Wait for buffered blocks to complete
  planner.synchronize();

-  #if ENABLED(ADVANCED_PAUSE_FANS_PAUSE) && HAS_FAN
+  #if ALL(ADVANCED_PAUSE_FANS_PAUSE, HAS_FAN)
    thermalManager.set_fans_paused(true);
  #endif

@@ -470,6 +465,7 @@ bool pause_print(const_float_t retract, const xyz_pos_t &park_point, const bool

  // If axes don't need to home then the nozzle can park
  if (do_park) nozzle.park(0, park_point); // Park the nozzle by doing a Minimum Z Raise followed by an XY Move
+  if (!do_park) LCD_MESSAGE(MSG_PARK_FAILED);

  #if ENABLED(DUAL_X_CARRIAGE)
    const int8_t saved_ext        = active_extruder;
@@ -481,9 +477,7 @@ bool pause_print(const_float_t retract, const xyz_pos_t &park_point, const bool
  if (unload_length)
    unload_filament(unload_length, show_lcd, PAUSE_MODE_CHANGE_FILAMENT);

-  #if ENABLED(DUAL_X_CARRIAGE)
-    set_duplication_enabled(saved_ext_dup_mode, saved_ext);
-  #endif
+  TERN_(DUAL_X_CARRIAGE, set_duplication_enabled(saved_ext_dup_mode, saved_ext));

  // Disable the Extruder for manual change
  disable_active_extruder();
@@ -510,7 +504,7 @@ void show_continue_prompt(const bool is_reload) {

  ui.pause_show_message(is_reload ? PAUSE_MESSAGE_INSERT : PAUSE_MESSAGE_WAITING);
  SERIAL_ECHO_START();
-  SERIAL_ECHOF(is_reload ? F(_PMSG(STR_FILAMENT_CHANGE_INSERT) "\n") : F(_PMSG(STR_FILAMENT_CHANGE_WAIT) "\n"));
+  SERIAL_ECHO(is_reload ? F(_PMSG(STR_FILAMENT_CHANGE_INSERT) "\n") : F(_PMSG(STR_FILAMENT_CHANGE_WAIT) "\n"));
 }

 void wait_for_confirmation(const bool is_reload/*=false*/, const int8_t max_beep_count/*=0*/ DXC_ARGS) {
@@ -536,7 +530,7 @@ void wait_for_confirmation(const bool is_reload/*=false*/, const int8_t max_beep

  // Wait for filament insert by user and press button
  KEEPALIVE_STATE(PAUSED_FOR_USER);
-  TERN_(HOST_PROMPT_SUPPORT, hostui.prompt_do(PROMPT_USER_CONTINUE, GET_TEXT_F(MSG_NOZZLE_PARKED), FPSTR(CONTINUE_STR)));
+  TERN_(HOST_PROMPT_SUPPORT, hostui.continue_prompt(GET_TEXT_F(MSG_NOZZLE_PARKED)));
  TERN_(EXTENSIBLE_UI, ExtUI::onUserConfirmRequired(GET_TEXT_F(MSG_NOZZLE_PARKED)));
  wait_for_user = true;    // LCD click or M108 will clear this
  while (wait_for_user) {
@@ -554,15 +548,17 @@ void wait_for_confirmation(const bool is_reload/*=false*/, const int8_t max_beep

      TERN_(HOST_PROMPT_SUPPORT, hostui.prompt_do(PROMPT_USER_CONTINUE, GET_TEXT_F(MSG_HEATER_TIMEOUT), GET_TEXT_F(MSG_REHEAT)));

-      TERN_(EXTENSIBLE_UI, ExtUI::onUserConfirmRequired(GET_TEXT_F(MSG_HEATER_TIMEOUT)));
+      #if ENABLED(TOUCH_UI_FTDI_EVE)
+        ExtUI::onUserConfirmRequired(GET_TEXT_F(MSG_FTDI_HEATER_TIMEOUT));
+      #elif ENABLED(EXTENSIBLE_UI)
+        ExtUI::onUserConfirmRequired(GET_TEXT_F(MSG_HEATER_TIMEOUT));
+      #endif

      TERN_(HAS_RESUME_CONTINUE, wait_for_user_response(0, true)); // Wait for LCD click or M108

      TERN_(HOST_PROMPT_SUPPORT, hostui.prompt_do(PROMPT_INFO, GET_TEXT_F(MSG_REHEATING)));

-      TERN_(EXTENSIBLE_UI, ExtUI::onStatusChanged(GET_TEXT_F(MSG_REHEATING)));
-
-      TERN_(DWIN_LCD_PROUI, LCD_MESSAGE(MSG_REHEATING));
+      LCD_MESSAGE(MSG_REHEATING);

      // Re-enable the heaters if they timed out
      HOTEND_LOOP() thermalManager.reset_hotend_idle_timer(e);
@@ -578,9 +574,12 @@ void wait_for_confirmation(const bool is_reload/*=false*/, const int8_t max_beep

      HOTEND_LOOP() thermalManager.heater_idle[e].start(nozzle_timeout);

-      TERN_(HOST_PROMPT_SUPPORT, hostui.prompt_do(PROMPT_USER_CONTINUE, GET_TEXT_F(MSG_REHEATDONE), FPSTR(CONTINUE_STR)));
-      TERN_(EXTENSIBLE_UI, ExtUI::onUserConfirmRequired(GET_TEXT_F(MSG_REHEATDONE)));
-      TERN_(DWIN_LCD_PROUI, LCD_MESSAGE(MSG_REHEATDONE));
+      TERN_(HOST_PROMPT_SUPPORT, hostui.continue_prompt(GET_TEXT_F(MSG_REHEATDONE)));
+      #if ENABLED(EXTENSIBLE_UI)
+        ExtUI::onUserConfirmRequired(GET_TEXT_F(MSG_REHEATDONE));
+      #else
+        LCD_MESSAGE(MSG_REHEATDONE);
+      #endif

      IF_DISABLED(PAUSE_REHEAT_FAST_RESUME, wait_for_user = true);

@@ -589,9 +588,7 @@ void wait_for_confirmation(const bool is_reload/*=false*/, const int8_t max_beep
    }
    idle_no_sleep();
  }
-  #if ENABLED(DUAL_X_CARRIAGE)
-    set_duplication_enabled(saved_ext_dup_mode, saved_ext);
-  #endif
+  TERN_(DUAL_X_CARRIAGE, set_duplication_enabled(saved_ext_dup_mode, saved_ext));
 }

 /**
@@ -708,7 +705,7 @@ void resume_print(const_float_t slow_load_length/*=0*/, const_float_t fast_load_
  // Resume the print job timer if it was running
  if (print_job_timer.isPaused()) print_job_timer.start();

-  #if ENABLED(SDSUPPORT)
+  #if HAS_MEDIA
    if (did_pause_print) {
      --did_pause_print;
      card.startOrResumeFilePrinting();
@@ -723,13 +720,8 @@ void resume_print(const_float_t slow_load_length/*=0*/, const_float_t fast_load_

  TERN_(HAS_FILAMENT_SENSOR, runout.reset());

-  #if ENABLED(DWIN_LCD_PROUI)
-    DWIN_Print_Resume();
-    HMI_ReturnScreen();
-  #else
-    ui.reset_status();
-    ui.return_to_status();
-  #endif
+  ui.reset_status();
+  ui.return_to_status();
 }

 #endif // ADVANCED_PAUSE_FEATURE
@@ -32,23 +32,28 @@

 FilamentMonitor runout;

-bool FilamentMonitorBase::enabled[NUM_RUNOUT_SENSORS], // Initialized by settings.load
-     FilamentMonitorBase::filament_ran_out; // = false
-RunoutMode FilamentMonitorBase::mode[NUM_RUNOUT_SENSORS]; // Initialized by settings.load
+bool FilamentMonitorBase::enabled = true,
+     FilamentMonitorBase::filament_ran_out;  // = false
+
 #if ENABLED(HOST_ACTION_COMMANDS)
  bool FilamentMonitorBase::host_handling; // = false
 #endif

 #if ENABLED(TOOLCHANGE_MIGRATION_FEATURE)
-  #define DEBUG_TOOLCHANGE_MIGRATION_FEATURE
  #include "../module/tool_change.h"
  #define DEBUG_OUT ENABLED(DEBUG_TOOLCHANGE_MIGRATION_FEATURE)
  #include "../core/debug_out.h"
 #endif

-float RunoutResponseDelayed::runout_distance_mm[NUM_RUNOUT_SENSORS]; // Initialized by settings.load
-volatile float RunoutResponseDelayed::runout_mm_countdown[NUM_RUNOUT_SENSORS];
-uint8_t FilamentSensorCore::motion_detected;
+#if HAS_FILAMENT_RUNOUT_DISTANCE
+  float RunoutResponseDelayed::runout_distance_mm = FILAMENT_RUNOUT_DISTANCE_MM;
+  countdown_t RunoutResponseDelayed::mm_countdown;
+  #if ENABLED(FILAMENT_MOTION_SENSOR)
+    uint8_t FilamentSensorEncoder::motion_detected;
+  #endif
+#else
+  int8_t RunoutResponseDebounced::runout_count[NUM_RUNOUT_SENSORS]; // = 0
+#endif

 //
 // Filament Runout event handler
@@ -63,8 +68,6 @@ uint8_t FilamentSensorCore::motion_detected;

 #if ENABLED(EXTENSIBLE_UI)
  #include "../lcd/extui/ui_api.h"
-#elif ENABLED(DWIN_LCD_PROUI)
-  #include "../lcd/e3v2/proui/dwin.h"
 #endif

 void event_filament_runout(const uint8_t extruder) {
@@ -83,7 +86,6 @@ void event_filament_runout(const uint8_t extruder) {
  #endif

  TERN_(EXTENSIBLE_UI, ExtUI::onFilamentRunout(ExtUI::getTool(extruder)));
-  TERN_(DWIN_LCD_PROUI, DWIN_FilamentRunout(extruder));

  #if ANY(HOST_PROMPT_SUPPORT, HOST_ACTION_COMMANDS, MULTI_FILAMENT_SENSOR)
    const char tool = '0' + TERN0(MULTI_FILAMENT_SENSOR, extruder);
@@ -97,12 +99,16 @@ void event_filament_runout(const uint8_t extruder) {
  const bool run_runout_script = !runout.host_handling;

  #if ENABLED(HOST_ACTION_COMMANDS)
-    if (run_runout_script
-      && ( strstr(FILAMENT_RUNOUT_SCRIPT, "M600")
+
+    const bool park_or_pause = (false
+      #ifdef FILAMENT_RUNOUT_SCRIPT
+        || strstr(FILAMENT_RUNOUT_SCRIPT, "M600")
        || strstr(FILAMENT_RUNOUT_SCRIPT, "M125")
        || TERN0(ADVANCED_PAUSE_FEATURE, strstr(FILAMENT_RUNOUT_SCRIPT, "M25"))
-      )
-    ) {
+      #endif
+    );
+
+    if (run_runout_script && park_or_pause) {
      hostui.paused(false);
    }
    else {
@@ -119,24 +125,27 @@ void event_filament_runout(const uint8_t extruder) {
    SERIAL_ECHOPGM(" " ACTION_REASON_ON_FILAMENT_RUNOUT " ");
    SERIAL_CHAR(tool);
    SERIAL_EOL();
+
  #endif // HOST_ACTION_COMMANDS

-  if (run_runout_script) {
-    #if MULTI_FILAMENT_SENSOR
-      char script[strlen(FILAMENT_RUNOUT_SCRIPT) + 1];
-      sprintf_P(script, PSTR(FILAMENT_RUNOUT_SCRIPT), tool);
-      #if ENABLED(FILAMENT_RUNOUT_SENSOR_DEBUG)
-        SERIAL_ECHOLNPGM("Runout Command: ", script);
+  #ifdef FILAMENT_RUNOUT_SCRIPT
+    if (run_runout_script) {
+      #if MULTI_FILAMENT_SENSOR
+        MString<strlen(FILAMENT_RUNOUT_SCRIPT)> script;
+        script.setf(F(FILAMENT_RUNOUT_SCRIPT), C(tool));
+        #if ENABLED(FILAMENT_RUNOUT_SENSOR_DEBUG)
+          SERIAL_ECHOLNPGM("Runout Command: ", &script);
+        #endif
+        queue.inject(&script);
+      #else
+        #if ENABLED(FILAMENT_RUNOUT_SENSOR_DEBUG)
+          SERIAL_ECHOPGM("Runout Command: ");
+          SERIAL_ECHOLNPGM(FILAMENT_RUNOUT_SCRIPT);
+        #endif
+        queue.inject(F(FILAMENT_RUNOUT_SCRIPT));
      #endif
-      queue.inject(script);
-    #else
-      #if ENABLED(FILAMENT_RUNOUT_SENSOR_DEBUG)
-        SERIAL_ECHOPGM("Runout Command: ");
-        SERIAL_ECHOLNPGM(FILAMENT_RUNOUT_SCRIPT);
-      #endif
-      queue.inject(F(FILAMENT_RUNOUT_SCRIPT));
-    #endif
-  }
+    }
+  #endif
 }

 #endif // HAS_FILAMENT_SENSOR
@@ -30,7 +30,8 @@
 #include "../module/planner.h"
 #include "../module/stepper.h" // for block_t
 #include "../gcode/queue.h"
-#include "../feature/pause.h"
+#include "../feature/pause.h" // for did_pause_print
+#include "../MarlinCore.h" // for printingIsActive()

 #include "../inc/MarlinConfig.h"

@@ -43,41 +44,44 @@
  #define FILAMENT_RUNOUT_THRESHOLD 5
 #endif

+#if ENABLED(FILAMENT_MOTION_SENSOR)
+  #define HAS_FILAMENT_MOTION 1
+#endif
+#if DISABLED(FILAMENT_MOTION_SENSOR) || ENABLED(FILAMENT_SWITCH_AND_MOTION)
+  #define HAS_FILAMENT_SWITCH 1
+#endif
+
+typedef Flags<
+          #if NUM_MOTION_SENSORS > NUM_RUNOUT_SENSORS
+            NUM_MOTION_SENSORS
+          #else
+            NUM_RUNOUT_SENSORS
+          #endif
+        > runout_flags_t;
+
 void event_filament_runout(const uint8_t extruder);
+inline bool should_monitor_runout() { return did_pause_print || printingIsActive(); }

 template<class RESPONSE_T, class SENSOR_T>
 class TFilamentMonitor;
-class FilamentSensorCore;
+class FilamentSensor;
 class RunoutResponseDelayed;
+class RunoutResponseDebounced;

 /********************************* TEMPLATE SPECIALIZATION *********************************/

 typedef TFilamentMonitor<
-          RunoutResponseDelayed,
-          FilamentSensorCore
+          TERN(HAS_FILAMENT_RUNOUT_DISTANCE, RunoutResponseDelayed, RunoutResponseDebounced),
+          FilamentSensor
        > FilamentMonitor;

 extern FilamentMonitor runout;

 /*******************************************************************************************/

-enum RunoutMode : uint8_t {
-  RM_NONE,
-  RM_OUT_ON_LOW,
-  RM_OUT_ON_HIGH,
-  RM_RESERVED3,
-  RM_RESERVED4,
-  RM_RESERVED5,
-  RM_RESERVED6,
-  RM_MOTION_SENSOR
-};
-
 class FilamentMonitorBase {
  public:
-    static bool enabled[NUM_RUNOUT_SENSORS], filament_ran_out;
-    static RunoutMode mode[NUM_RUNOUT_SENSORS];
-
-    static uint8_t out_state(const uint8_t e=0) { return mode[e] == RM_OUT_ON_HIGH ? HIGH : LOW; }
+    static bool enabled, filament_ran_out;

    #if ENABLED(HOST_ACTION_COMMANDS)
      static bool host_handling;
@@ -107,14 +111,24 @@ class TFilamentMonitor : public FilamentMonitorBase {

    // Call this method when filament is present,
    // so the response can reset its counter.
-    static void filament_present(const uint8_t e) { response.filament_present(e); }
-    static float& runout_distance(const uint8_t e=0) { return response.runout_distance_mm[e]; }
-    static void set_runout_distance(const_float_t mm, const uint8_t e=0) { response.runout_distance_mm[e] = mm; }
+    static void filament_present(const uint8_t extruder) {
+      response.filament_present(extruder);
+    }
+    #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
+      static void filament_motion_present(const uint8_t extruder) {
+        response.filament_motion_present(extruder);
+      }
+    #endif
+
+    #if HAS_FILAMENT_RUNOUT_DISTANCE
+      static float& runout_distance() { return response.runout_distance_mm; }
+      static void set_runout_distance(const_float_t mm) { response.runout_distance_mm = mm; }
+    #endif

    // Handle a block completion. RunoutResponseDelayed uses this to
    // add up the length of filament moved while the filament is out.
    static void block_completed(const block_t * const b) {
-      if (enabled[active_extruder]) {
+      if (enabled) {
        response.block_completed(b);
        sensor.block_completed(b);
      }
@@ -122,43 +136,33 @@ class TFilamentMonitor : public FilamentMonitorBase {

    // Give the response a chance to update its counter.
    static void run() {
-      if (enabled[active_extruder] && mode[active_extruder] != RM_NONE && !filament_ran_out && (printingIsActive() || did_pause_print)) {
-        cli(); // Prevent RunoutResponseDelayed::block_completed from accumulating here
+      if (enabled && !filament_ran_out && should_monitor_runout()) {
+        TERN_(HAS_FILAMENT_RUNOUT_DISTANCE, cli()); // Prevent RunoutResponseDelayed::block_completed from accumulating here
        response.run();
        sensor.run();
-        const uint8_t runout_flags = response.has_run_out();
-        sei();
+        const runout_flags_t runout_flags = response.has_run_out();
+        TERN_(HAS_FILAMENT_RUNOUT_DISTANCE, sei());
        #if MULTI_FILAMENT_SENSOR
          #if ENABLED(WATCH_ALL_RUNOUT_SENSORS)
-            const bool ran_out = !!runout_flags;  // any sensor triggers
+            const bool ran_out = bool(runout_flags);  // any sensor triggers
            uint8_t extruder = 0;
-            if (ran_out) {
-              uint8_t bitmask = runout_flags;
-              while (!(bitmask & 1)) {
-                bitmask >>= 1;
-                extruder++;
-              }
-            }
+            if (ran_out) while (!runout_flags.test(extruder)) extruder++;
          #else
-            const bool ran_out = TEST(runout_flags, active_extruder);  // suppress non active extruders
+            const bool ran_out = runout_flags[active_extruder];  // suppress non active extruders
            uint8_t extruder = active_extruder;
          #endif
        #else
-          const bool ran_out = !!runout_flags;
+          const bool ran_out = bool(runout_flags);
          uint8_t extruder = active_extruder;
        #endif

-        #if ENABLED(FILAMENT_RUNOUT_SENSOR_DEBUG)
-          if (runout_flags) {
-            SERIAL_ECHOPGM("Runout Sensors: ");
-            LOOP_L_N(i, 8) SERIAL_ECHO('0' + TEST(runout_flags, i));
-            SERIAL_ECHOPGM(" -> ", extruder);
-            if (ran_out) SERIAL_ECHOPGM(" RUN OUT");
-            SERIAL_EOL();
-          }
-        #endif
-
        if (ran_out) {
+          #if ENABLED(FILAMENT_RUNOUT_SENSOR_DEBUG)
+            SERIAL_ECHOPGM("Runout Sensors: ");
+            for (uint8_t i = 0; i < 8; ++i) SERIAL_CHAR('0' + char(runout_flags[i]));
+            SERIAL_ECHOLNPGM(" -> ", extruder, " RUN OUT");
+          #endif
+
          filament_ran_out = true;
          event_filament_runout(extruder);
          planner.synchronize();
@@ -178,39 +182,26 @@ class FilamentSensorBase {
    static void filament_present(const uint8_t extruder) {
      runout.filament_present(extruder); // ...which calls response.filament_present(extruder)
    }
+    #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
+      static void filament_motion_present(const uint8_t extruder) {
+        runout.filament_motion_present(extruder); // ...which calls response.filament_motion_present(extruder)
+      }
+    #endif

  public:
    static void setup() {
-      #define _INIT_RUNOUT_PIN(P,S,U,D) do{ if (ENABLED(U)) SET_INPUT_PULLUP(P); else if (ENABLED(D)) SET_INPUT_PULLDOWN(P); else SET_INPUT(P); }while(0)
-      #define  INIT_RUNOUT_PIN(N) _INIT_RUNOUT_PIN(FIL_RUNOUT##N##_PIN, FIL_RUNOUT##N##_STATE, FIL_RUNOUT##N##_PULLUP, FIL_RUNOUT##N##_PULLDOWN)
-      #if NUM_RUNOUT_SENSORS >= 1
-        INIT_RUNOUT_PIN(1);
-      #endif
-      #if NUM_RUNOUT_SENSORS >= 2
-        INIT_RUNOUT_PIN(2);
-      #endif
-      #if NUM_RUNOUT_SENSORS >= 3
-        INIT_RUNOUT_PIN(3);
-      #endif
-      #if NUM_RUNOUT_SENSORS >= 4
-        INIT_RUNOUT_PIN(4);
-      #endif
-      #if NUM_RUNOUT_SENSORS >= 5
-        INIT_RUNOUT_PIN(5);
-      #endif
-      #if NUM_RUNOUT_SENSORS >= 6
-        INIT_RUNOUT_PIN(6);
-      #endif
-      #if NUM_RUNOUT_SENSORS >= 7
-        INIT_RUNOUT_PIN(7);
-      #endif
-      #if NUM_RUNOUT_SENSORS >= 8
-        INIT_RUNOUT_PIN(8);
+      #define _INIT_RUNOUT_PIN(P,S,U,D) do{ if (ENABLED(U)) SET_INPUT_PULLUP(P); else if (ENABLED(D)) SET_INPUT_PULLDOWN(P); else SET_INPUT(P); }while(0);
+      #define  INIT_RUNOUT_PIN(N) _INIT_RUNOUT_PIN(FIL_RUNOUT##N##_PIN, FIL_RUNOUT##N##_STATE, FIL_RUNOUT##N##_PULLUP, FIL_RUNOUT##N##_PULLDOWN);
+      REPEAT_1(NUM_RUNOUT_SENSORS, INIT_RUNOUT_PIN)
+      #undef INIT_RUNOUT_PIN
+
+      #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
+        #define INIT_MOTION_PIN(N) _INIT_RUNOUT_PIN(FIL_MOTION##N##_PIN, FIL_MOTION##N##_STATE, FIL_MOTION##N##_PULLUP, FIL_MOTION##N##_PULLDOWN);
+        REPEAT_1(NUM_MOTION_SENSORS, INIT_MOTION_PIN)
+        #undef  INIT_MOTION_PIN
      #endif
      #undef _INIT_RUNOUT_PIN
-      #undef  INIT_RUNOUT_PIN
    }
-    

    // Return a bitmask of runout pin states
    static uint8_t poll_runout_pins() {
@@ -221,125 +212,275 @@ class FilamentSensorBase {

    // Return a bitmask of runout flag states (1 bits always indicates runout)
    static uint8_t poll_runout_states() {
-      #define _OR_INVERT(N) | (runout.out_state(N-1) ? 0 : _BV(N-1))
-      return poll_runout_pins() ^ uint8_t(0 REPEAT_1(NUM_RUNOUT_SENSORS, _OR_INVERT));
-      #undef _OR_INVERT
+      #define _INVERT_BIT(N) | (FIL_RUNOUT##N##_STATE ? 0 : _BV(N - 1))
+      return poll_runout_pins() ^ uint8_t(0 REPEAT_1(NUM_RUNOUT_SENSORS, _INVERT_BIT));
+      #undef _INVERT_BIT
    }
+
+    #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
+      // Return a bitmask of motion pin states
+      static uint8_t poll_motion_pins() {
+        #define _OR_MOTION(N) | (READ(FIL_MOTION##N##_PIN) ? _BV((N) - 1) : 0)
+        return (0 REPEAT_1(NUM_MOTION_SENSORS, _OR_MOTION));
+        #undef _OR_MOTION
+      }
+
+      // Return a bitmask of motion flag states (1 bits always indicates runout)
+      static uint8_t poll_motion_states() {
+        #define _OR_MOTION(N) | (FIL_MOTION##N##_STATE ? 0 : _BV(N - 1))
+        return poll_motion_pins() ^ uint8_t(0 REPEAT_1(NUM_MOTION_SENSORS, _OR_MOTION));
+        #undef _OR_MOTION
+      }
+    #endif
 };

-class FilamentSensorCore : public FilamentSensorBase {
-  private:
-    static uint8_t motion_detected;
+#if HAS_FILAMENT_MOTION

-    static bool poll_runout_state(const uint8_t extruder) {
-      const uint8_t runout_states = poll_runout_states();
-      #if MULTI_FILAMENT_SENSOR
-        if ( !TERN0(DUAL_X_CARRIAGE, idex_is_duplicating())
-          && !TERN0(MULTI_NOZZLE_DUPLICATION, extruder_duplication_enabled)
-        ) return TEST(runout_states, extruder); // A specific extruder ran out
-      #else
-        UNUSED(extruder);
-      #endif
-      return !!runout_states;                   // Any extruder ran out
-    }
+  /**
+   * This sensor uses a magnetic encoder disc and a Hall effect
+   * sensor (or a slotted disc and optical sensor). The state
+   * will toggle between 0 and 1 on filament movement. It can detect
+   * filament runout and stripouts or jams.
+   */
+  class FilamentSensorEncoder : public FilamentSensorBase {
+    private:
+      static uint8_t motion_detected;

-    static void poll_motion_sensor() {
-      static uint8_t old_state;
-      const uint8_t new_state = poll_runout_pins(),
-                    change    = old_state ^ new_state;
-      old_state = new_state;
+      static void poll_motion_sensor() {
+        static uint8_t old_state;
+        const uint8_t new_state = TERN(FILAMENT_SWITCH_AND_MOTION, poll_motion_pins, poll_runout_pins)(),
+                      change    = old_state ^ new_state;
+        old_state = new_state;

-      #if ENABLED(FILAMENT_RUNOUT_SENSOR_DEBUG)
-        if (change) {
-          SERIAL_ECHOPGM("Motion detected:");
-          LOOP_L_N(e, NUM_RUNOUT_SENSORS)
-            if (TEST(change, e)) SERIAL_CHAR(' ', '0' + e);
-          SERIAL_EOL();
-        }
-      #endif
+        #if ENABLED(FILAMENT_RUNOUT_SENSOR_DEBUG)
+          if (change) {
+            SERIAL_ECHOPGM("Motion detected:");
+            for (uint8_t e = 0; e < TERN(FILAMENT_SWITCH_AND_MOTION, NUM_MOTION_SENSORS, NUM_RUNOUT_SENSORS); ++e)
+              if (TEST(change, e)) SERIAL_CHAR(' ', '0' + e);
+            SERIAL_EOL();
+          }
+        #endif

-      motion_detected |= change;
-    }
-
-  public:
-    static void block_completed(const block_t * const b) {
-      if (runout.mode[active_extruder] != RM_MOTION_SENSOR) return;
-
-      // If the sensor wheel has moved since the last call to
-      // this method reset the runout counter for the extruder.
-      if (TEST(motion_detected, b->extruder))
-        filament_present(b->extruder);
-
-      // Clear motion triggers for next block
-      motion_detected = 0;
-    }
-
-    static void run() {
-      if (runout.mode[active_extruder] == RM_MOTION_SENSOR) {
-        poll_motion_sensor();
+        motion_detected |= change;
      }
-      else if (runout.mode[active_extruder] != RM_NONE) {
-        LOOP_L_N(s, NUM_RUNOUT_SENSORS) {
+
+    public:
+      static void block_completed(const block_t * const b) {
+        // If the sensor wheel has moved since the last call to
+        // this method reset the runout counter for the extruder.
+        if (TEST(motion_detected, b->extruder))
+          TERN(FILAMENT_SWITCH_AND_MOTION, filament_motion_present, filament_present)(b->extruder);
+
+        // Clear motion triggers for next block
+        motion_detected = 0;
+      }
+
+      static void run() { poll_motion_sensor(); }
+  };
+
+#endif // HAS_FILAMENT_MOTION
+
+#if HAS_FILAMENT_SWITCH
+
+  /**
+   * This is a simple endstop switch in the path of the filament.
+   * It can detect filament runout, but not stripouts or jams.
+   */
+  class FilamentSensorSwitch : public FilamentSensorBase {
+    private:
+      static bool poll_runout_state(const uint8_t extruder) {
+        const uint8_t runout_states = poll_runout_states();
+        #if MULTI_FILAMENT_SENSOR
+          if ( !TERN0(DUAL_X_CARRIAGE, idex_is_duplicating())
+            && !TERN0(MULTI_NOZZLE_DUPLICATION, extruder_duplication_enabled)
+          ) return TEST(runout_states, extruder); // A specific extruder ran out
+        #else
+          UNUSED(extruder);
+        #endif
+        return !!runout_states;                   // Any extruder ran out
+      }
+
+    public:
+      static void block_completed(const block_t * const) {}
+
+      static void run() {
+        for (uint8_t s = 0; s < NUM_RUNOUT_SENSORS; ++s) {
          const bool out = poll_runout_state(s);
          if (!out) filament_present(s);
          #if ENABLED(FILAMENT_RUNOUT_SENSOR_DEBUG)
            static uint8_t was_out; // = 0
            if (out != TEST(was_out, s)) {
              TBI(was_out, s);
-              SERIAL_ECHOLNF(F("Filament Sensor "), AS_DIGIT(s), out ? F(" OUT") : F(" IN"));
+              SERIAL_ECHOLN(F("Filament Sensor "), AS_DIGIT(s), out ? F(" OUT") : F(" IN"));
            }
          #endif
        }
      }
-    }
-};
+  };

+ #endif // HAS_FILAMENT_SWITCH
+
+  /**
+   * This is a simple endstop switch in the path of the filament.
+   * It can detect filament runout, but not stripouts or jams.
+   */
+  class FilamentSensor : public FilamentSensorBase {
+    private:
+      TERN_(HAS_FILAMENT_MOTION, static FilamentSensorEncoder encoder_sensor);
+      TERN_(HAS_FILAMENT_SWITCH, static FilamentSensorSwitch switch_sensor);
+
+    public:
+      static void block_completed(const block_t * const b) {
+        TERN_(HAS_FILAMENT_MOTION, encoder_sensor.block_completed(b));
+        TERN_(HAS_FILAMENT_SWITCH, switch_sensor.block_completed(b));
+      }
+
+      static void run() {
+        TERN_(HAS_FILAMENT_MOTION, encoder_sensor.run());
+        TERN_(HAS_FILAMENT_SWITCH, switch_sensor.run());
+      }
+  };

 /********************************* RESPONSE TYPE *********************************/

-// RunoutResponseDelayed triggers a runout event only if the length
-// of filament specified by FIL_RUNOUT_DISTANCE_MM has been fed
-// during a runout condition.
-class RunoutResponseDelayed {
-  private:
-    static volatile float runout_mm_countdown[NUM_RUNOUT_SENSORS];
+#if HAS_FILAMENT_RUNOUT_DISTANCE

-  public:
-    static float runout_distance_mm[NUM_RUNOUT_SENSORS];
+  typedef struct {
+    float runout[NUM_RUNOUT_SENSORS];
+    Flags<NUM_RUNOUT_SENSORS> runout_reset;    // Reset runout later
+    #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
+      float motion[NUM_MOTION_SENSORS];
+      Flags<NUM_MOTION_SENSORS> motion_reset;  // Reset motion later
+    #endif
+  } countdown_t;

-    static void reset() {
-      LOOP_L_N(i, NUM_RUNOUT_SENSORS) filament_present(i);
-    }
+  // RunoutResponseDelayed triggers a runout event only if the length
+  // of filament specified by FILAMENT_RUNOUT_DISTANCE_MM has been fed
+  // during a runout condition.
+  class RunoutResponseDelayed {
+    private:
+      static countdown_t mm_countdown;

-    static void run() {
-      #if ENABLED(FILAMENT_RUNOUT_SENSOR_DEBUG)
-        static millis_t t = 0;
-        const millis_t ms = millis();
-        if (ELAPSED(ms, t)) {
-          t = millis() + 1000UL;
-          LOOP_L_N(i, NUM_RUNOUT_SENSORS)
-            SERIAL_ECHOF(i ? F(", ") : F("Remaining mm: "), runout_mm_countdown[i]);
-          SERIAL_EOL();
+    public:
+      static float runout_distance_mm;
+
+      static void reset() {
+        for (uint8_t i = 0; i < NUM_RUNOUT_SENSORS; ++i) filament_present(i);
+        #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
+          for (uint8_t i = 0; i < NUM_MOTION_SENSORS; ++i) filament_motion_present(i);
+        #endif
+      }
+
+      static void run() {
+        #if ENABLED(FILAMENT_RUNOUT_SENSOR_DEBUG)
+          static millis_t t = 0;
+          const millis_t ms = millis();
+          if (ELAPSED(ms, t)) {
+            t = millis() + 1000UL;
+            for (uint8_t i = 0; i < NUM_RUNOUT_SENSORS; ++i)
+              SERIAL_ECHO(i ? F(", ") : F("Runout remaining mm: "), mm_countdown.runout[i]);
+            #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
+              for (uint8_t i = 0; i < NUM_MOTION_SENSORS; ++i)
+                SERIAL_ECHO(i ? F(", ") : F("Motion remaining mm: "), mm_countdown.motion[i]);
+            #endif
+            SERIAL_EOL();
+          }
+        #endif
+      }
+
+      static runout_flags_t has_run_out() {
+        runout_flags_t runout_flags{0};
+        for (uint8_t i = 0; i < NUM_RUNOUT_SENSORS; ++i) if (mm_countdown.runout[i] < 0) runout_flags.set(i);
+        #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
+          for (uint8_t i = 0; i < NUM_MOTION_SENSORS; ++i) if (mm_countdown.motion[i] < 0) runout_flags.set(i);
+        #endif
+        return runout_flags;
+      }
+
+      static void filament_present(const uint8_t extruder) {
+        if (mm_countdown.runout[extruder] < runout_distance_mm || did_pause_print) {
+          // Reset runout only if it is smaller than runout_distance or printing is paused.
+          // On Bowden systems retract may be larger than runout_distance_mm, so if retract
+          // was added leave it in place, or the following unretract will cause runout event.
+          mm_countdown.runout[extruder] = runout_distance_mm;
+          mm_countdown.runout_reset.clear(extruder);
+        }
+        else {
+          // If runout is larger than runout distance, we cannot reset right now, as Bowden and retract
+          // distance larger than runout_distance_mm leads to negative runout right after unretract.
+          // But we cannot ignore filament_present event. After unretract, runout will become smaller
+          // than runout_distance_mm and should be reset after that. So activate delayed reset.
+          mm_countdown.runout_reset.set(extruder);
+        }
+      }
+
+      #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
+        static void filament_motion_present(const uint8_t extruder) {
+          // Same logic as filament_present
+          if (mm_countdown.motion[extruder] < runout_distance_mm || did_pause_print) {
+            mm_countdown.motion[extruder] = runout_distance_mm;
+            mm_countdown.motion_reset.clear(extruder);
+          }
+          else
+            mm_countdown.motion_reset.set(extruder);
        }
      #endif
-    }

-    static uint8_t has_run_out() {
-      uint8_t runout_flags = 0;
-      LOOP_L_N(i, NUM_RUNOUT_SENSORS) if (runout_mm_countdown[i] < 0) SBI(runout_flags, i);
-      return runout_flags;
-    }
+      static void block_completed(const block_t * const b) {
+        const int32_t esteps = b->steps.e;
+        if (!esteps) return;

-    static void filament_present(const uint8_t extruder) {
-      runout_mm_countdown[extruder] = runout_distance_mm[extruder];
-    }
+        // No calculation unless paused or printing
+        if (!should_monitor_runout()) return;

-    static void block_completed(const block_t * const b) {
-      if (b->steps.x || b->steps.y || b->steps.z || did_pause_print) { // Allow pause purge move to re-trigger runout state
-        // Only trigger on extrusion with XYZ movement to allow filament change and retract/recover.
+        // No need to ignore retract/unretract movement since they complement each other
        const uint8_t e = b->extruder;
-        const int32_t steps = b->steps.e;
-        runout_mm_countdown[e] -= (TEST(b->direction_bits, E_AXIS) ? -steps : steps) * planner.mm_per_step[E_AXIS_N(e)];
+        const float mm = (b->direction_bits.e ? esteps : -esteps) * planner.mm_per_step[E_AXIS_N(e)];
+
+        if (e < NUM_RUNOUT_SENSORS) {
+          mm_countdown.runout[e] -= mm;
+          if (mm_countdown.runout_reset[e]) filament_present(e);          // Reset pending. Try to reset.
+        }
+
+        #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
+          if (e < NUM_MOTION_SENSORS) {
+            mm_countdown.motion[e] -= mm;
+            if (mm_countdown.motion_reset[e]) filament_motion_present(e); // Reset pending. Try to reset.
+          }
+        #endif
      }
-    }
-};
+  };
+
+#else // !HAS_FILAMENT_RUNOUT_DISTANCE
+
+  // RunoutResponseDebounced triggers a runout event after a runout
+  // condition has been detected runout_threshold times in a row.
+
+  class RunoutResponseDebounced {
+    private:
+      static constexpr int8_t runout_threshold = FILAMENT_RUNOUT_THRESHOLD;
+      static int8_t runout_count[NUM_RUNOUT_SENSORS];
+
+    public:
+      static void reset() {
+        for (uint8_t i = 0; i < NUM_RUNOUT_SENSORS; ++i) filament_present(i);
+      }
+
+      static void run() {
+        for (uint8_t i = 0; i < NUM_RUNOUT_SENSORS; ++i) if (runout_count[i] >= 0) runout_count[i]--;
+      }
+
+      static runout_flags_t has_run_out() {
+        runout_flags_t runout_flags{0};
+        for (uint8_t i = 0; i < NUM_RUNOUT_SENSORS; ++i) if (runout_count[i] < 0) runout_flags.set(i);
+        return runout_flags;
+      }
+
+      static void block_completed(const block_t * const) { }
+
+      static void filament_present(const uint8_t extruder) {
+        runout_count[extruder] = runout_threshold;
+      }
+  };
+
+#endif // !HAS_FILAMENT_RUNOUT_DISTANCE
@@ -31,7 +31,7 @@ static uint32_t axis_plug_backward = 0;
 void stepper_driver_backward_error(FSTR_P const fstr) {
  SERIAL_ERROR_START();
  SERIAL_ECHOLN(fstr, F(" driver is backward!"));
-  ui.status_printf(2, F(S_FMT S_FMT), FTOP(fstr), GET_TEXT(MSG_DRIVER_BACKWARD));
+  ui.status_printf(2, F(S_FMT S_FMT), FTOP(fstr), GET_TEXT_F(MSG_DRIVER_BACKWARD));
 }

 void stepper_driver_backward_check() {
@@ -32,6 +32,12 @@

 /**
 * G42: Move X & Y axes to mesh coordinates (I & J)
+ *
+ * Parameters:
+ *   F<feedrate> : Feedrate in mm/min
+ *   I<index>    : X axis point index
+ *   J<index>    : Y axis point index
+ *   P<bool>     : Flag to put the prove at the given point
 */
 void GcodeSuite::G42() {
  if (MOTION_CONDITIONS) {
@@ -683,7 +683,7 @@ G29_TYPE GcodeSuite::G29() {
          if (TERN0(IS_KINEMATIC, !probe.can_reach(abl.probePos))) continue;

          if (abl.verbose_level) SERIAL_ECHOLNPGM("Probing mesh point ", pt_index, "/", abl.abl_points, ".");
-          TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT(MSG_PROBING_POINT), int(pt_index), int(abl.abl_points)));
+          TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT_F(MSG_PROBING_POINT), int(pt_index), int(abl.abl_points)));

          #if ENABLED(BD_SENSOR_PROBE_NO_STOP)
            if (PR_INNER_VAR == inStart) {
@@ -782,7 +782,7 @@ G29_TYPE GcodeSuite::G29() {

      for (uint8_t i = 0; i < 3; ++i) {
        if (abl.verbose_level) SERIAL_ECHOLNPGM("Probing point ", i + 1, "/3.");
-        TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/3"), GET_TEXT(MSG_PROBING_POINT), int(i + 1)));
+        TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/3"), GET_TEXT_F(MSG_PROBING_POINT), int(i + 1)));

        // Retain the last probe position
        abl.probePos = xy_pos_t(points[i]);
@@ -253,7 +253,7 @@ void GcodeSuite::G29() {

  if (state == MeshNext) {
    SERIAL_ECHOLNPGM("MBL G29 point ", _MIN(mbl_probe_index, GRID_MAX_POINTS), " of ", GRID_MAX_POINTS);
-    if (mbl_probe_index > 0) TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT(MSG_PROBING_POINT), _MIN(mbl_probe_index, GRID_MAX_POINTS), int(GRID_MAX_POINTS)));
+    if (mbl_probe_index > 0) TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT_F(MSG_PROBING_POINT), _MIN(mbl_probe_index, GRID_MAX_POINTS), int(GRID_MAX_POINTS)));
  }

  report_current_position();
@@ -149,7 +149,7 @@ void GcodeSuite::M48() {
    for (uint8_t n = 0; n < n_samples; ++n) {
      #if HAS_STATUS_MESSAGE
        // Display M48 progress in the status bar
-        ui.status_printf(0, F(S_FMT ": %d/%d"), GET_TEXT(MSG_M48_POINT), int(n + 1), int(n_samples));
+        ui.status_printf(0, F(S_FMT ": %d/%d"), GET_TEXT_F(MSG_M48_POINT), int(n + 1), int(n_samples));
      #endif

      // When there are "legs" of movement move around the point before probing
@@ -20,6 +20,11 @@
 *
 */

+/**
+ * gcode/control/M10_M11.cpp
+ * Air Evacuation
+ */
+
 #include "../../inc/MarlinConfig.h"

 #if ENABLED(AIR_EVACUATION)
@@ -68,7 +68,7 @@ void GcodeSuite::M907() {
      #define HAS_X_Y_XY_I_J_K_U_V_W 1
    #endif

-    #if HAS_X_Y_XY_I_J_K_U_V_W || ANY_PIN(MOTOR_CURRENT_PWM_E, MOTOR_CURRENT_PWM_Z)
+    #if HAS_X_Y_XY_I_J_K_U_V_W || HAS_MOTOR_CURRENT_PWM_E || PIN_EXISTS(MOTOR_CURRENT_PWM_Z)

      if (!parser.seen("S"
        #if HAS_X_Y_XY_I_J_K_U_V_W
@@ -77,7 +77,7 @@ void GcodeSuite::M907() {
        #if PIN_EXISTS(MOTOR_CURRENT_PWM_Z)
          "Z"
        #endif
-        #if PIN_EXISTS(MOTOR_CURRENT_PWM_E)
+        #if HAS_MOTOR_CURRENT_PWM_E
          "E"
        #endif
      )) return M907_report();
@@ -94,7 +94,7 @@ void GcodeSuite::M907() {
      #if PIN_EXISTS(MOTOR_CURRENT_PWM_Z)
        if (parser.seenval('Z')) stepper.set_digipot_current(1, parser.value_int());
      #endif
-      #if PIN_EXISTS(MOTOR_CURRENT_PWM_E)
+      #if HAS_MOTOR_CURRENT_PWM_E
        if (parser.seenval('E')) stepper.set_digipot_current(2, parser.value_int());
      #endif

@@ -133,7 +133,7 @@ void GcodeSuite::M907() {
      SERIAL_ECHOLNPGM_P(                                     // PWM-based has 3 values:
          PSTR("  M907 X"), stepper.motor_current_setting[0]  // X, Y, (I, J, K, U, V, W)
        , SP_Z_STR,         stepper.motor_current_setting[1]  // Z
-        #if PIN_EXISTS(MOTOR_CURRENT_PWM_E)
+        #if HAS_MOTOR_CURRENT_PWM_E
          , SP_E_STR,       stepper.motor_current_setting[2]  // E
        #endif
      );
@@ -44,6 +44,15 @@ void GcodeSuite::M593_report(const bool forReplay/*=true*/) {
      " D", stepper.get_shaping_damping_ratio(Y_AXIS)
    );
  #endif
+  #if ENABLED(INPUT_SHAPING_Z)
+    #if ANY(INPUT_SHAPING_X, INPUT_SHAPING_Y)
+      report_echo_start(forReplay);
+    #endif
+    SERIAL_ECHOLNPGM("  M593 Z"
+      " F", stepper.get_shaping_frequency(Z_AXIS),
+      " D", stepper.get_shaping_damping_ratio(Z_AXIS)
+    );
+  #endif
 }

 /**
@@ -59,14 +68,17 @@ void GcodeSuite::M593() {

  const bool seen_X = TERN0(INPUT_SHAPING_X, parser.seen_test('X')),
             seen_Y = TERN0(INPUT_SHAPING_Y, parser.seen_test('Y')),
-             for_X = seen_X || TERN0(INPUT_SHAPING_X, (!seen_X && !seen_Y)),
-             for_Y = seen_Y || TERN0(INPUT_SHAPING_Y, (!seen_X && !seen_Y));
+             seen_Z = TERN0(INPUT_SHAPING_Z, parser.seen_test('Z')),
+             for_X = seen_X || TERN0(INPUT_SHAPING_X, (!seen_X && !seen_Y && !seen_Z)),
+             for_Y = seen_Y || TERN0(INPUT_SHAPING_Y, (!seen_X && !seen_Y && !seen_Z)),
+             for_Z = seen_Z || TERN0(INPUT_SHAPING_Z, (!seen_X && !seen_Y && !seen_Z));

  if (parser.seen('D')) {
    const float zeta = parser.value_float();
    if (WITHIN(zeta, 0, 1)) {
      if (for_X) stepper.set_shaping_damping_ratio(X_AXIS, zeta);
      if (for_Y) stepper.set_shaping_damping_ratio(Y_AXIS, zeta);
+      if (for_Z) stepper.set_shaping_damping_ratio(Z_AXIS, zeta);
    }
    else
      SERIAL_ECHO_MSG("?Zeta (D) value out of range (0-1)");
@@ -78,6 +90,7 @@ void GcodeSuite::M593() {
    if (freq == 0.0f || freq > min_freq) {
      if (for_X) stepper.set_shaping_frequency(X_AXIS, freq);
      if (for_Y) stepper.set_shaping_frequency(Y_AXIS, freq);
+      if (for_Z) stepper.set_shaping_frequency(Z_AXIS, freq);
    }
    else
      SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Frequency (F) must be greater than ", min_freq, " or 0 to disable"));
@@ -94,7 +94,7 @@ void GcodeSuite::M600() {
                                   // In this case, for duplicating modes set DXC_ext to the extruder that ran out.
      #if MULTI_FILAMENT_SENSOR
        if (idex_is_duplicating())
-          DXC_ext = (READ(FIL_RUNOUT2_PIN) == runout.out_state(1)) ? 1 : 0;
+          DXC_ext = (READ(FIL_RUNOUT2_PIN) == FIL_RUNOUT2_STATE) ? 1 : 0;
      #else
        DXC_ext = active_extruder;
      #endif
@@ -72,6 +72,7 @@ void GcodeSuite::M413_report(const bool forReplay/*=true*/) {
      , " B", recovery.bed_temp_threshold
    #endif
  );
+  SERIAL_ECHO(" ; ");
  serialprintln_onoff(recovery.enabled);
 }

@@ -0,0 +1,83 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../../../inc/MarlinConfig.h"
+
+#if HAS_FILAMENT_SENSOR
+
+#include "../../gcode.h"
+#include "../../../feature/runout.h"
+
+/**
+ * M412: Enable / Disable filament runout detection
+ *
+ * Parameters
+ *  R         : Reset the runout sensor
+ *  S<bool>   : Reset and enable/disable the runout sensor
+ *  H<bool>   : Enable/disable host handling of filament runout
+ *  D<linear> : Extra distance to continue after runout is triggered
+ */
+void GcodeSuite::M412() {
+  if (parser.seen("RS"
+    TERN_(HAS_FILAMENT_RUNOUT_DISTANCE, "D")
+    TERN_(HOST_ACTION_COMMANDS, "H")
+  )) {
+    #if ENABLED(HOST_ACTION_COMMANDS)
+      if (parser.seen('H')) runout.host_handling = parser.value_bool();
+    #endif
+    const bool seenR = parser.seen_test('R'), seenS = parser.seen('S');
+    if (seenR || seenS) runout.reset();
+    if (seenS) runout.enabled = parser.value_bool();
+    #if HAS_FILAMENT_RUNOUT_DISTANCE
+      if (parser.seenval('D')) runout.set_runout_distance(parser.value_linear_units());
+    #endif
+  }
+  else {
+    SERIAL_ECHO_START();
+    SERIAL_ECHOPGM("Filament runout ");
+    serialprint_onoff(runout.enabled);
+    #if HAS_FILAMENT_RUNOUT_DISTANCE
+      SERIAL_ECHOPGM(" ; Distance ", runout.runout_distance(), "mm");
+    #endif
+    #if ENABLED(HOST_ACTION_COMMANDS)
+      SERIAL_ECHOPGM(" ; Host handling ");
+      serialprint_onoff(runout.host_handling);
+    #endif
+    SERIAL_EOL();
+  }
+}
+
+void GcodeSuite::M412_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
+  report_heading_etc(forReplay, F(STR_FILAMENT_RUNOUT_SENSOR));
+  SERIAL_ECHOPGM(
+    "  M412 S", runout.enabled
+    #if HAS_FILAMENT_RUNOUT_DISTANCE
+      , " D", LINEAR_UNIT(runout.runout_distance())
+    #endif
+    , " ; Sensor "
+  );
+  serialprintln_onoff(runout.enabled);
+}
+
+#endif // HAS_FILAMENT_SENSOR
@@ -1,97 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-#include "../../../inc/MarlinConfig.h"
-
-#if HAS_FILAMENT_SENSOR
-
-#include "../../gcode.h"
-#include "../../../feature/runout.h"
-
-/**
- * M591: Configure filament runout detection
- *
- * Parameters
- *  R         : Reset the runout sensor
- *  S<bool>   : Reset and enable/disable the runout sensor
- *  H<bool>   : Enable/disable host handling of filament runout
- *  L<linear> : Extra distance to continue after runout is triggered or motion interval
- *  D<linear> : Alias for L
- *  P<index>  : Mode 0 = NONE
- *                   1 = Switch NO (HIGH = filament present)
- *                   2 = Switch NC (LOW = filament present)
- *                   3 = Encoder / Motion Sensor
- */
-void GcodeSuite::M591() {
-  if (parser.seen("RSDP" TERN_(HOST_ACTION_COMMANDS, "H"))) {
-    #if ENABLED(HOST_ACTION_COMMANDS)
-      if (parser.seen('H')) runout.host_handling = parser.value_bool();
-    #endif
-    const bool seenR = parser.seen_test('R'), seenS = parser.seen('S');
-    if (seenR || seenS) runout.reset();
-    const uint8_t tool = TERN0(MULTI_FILAMENT_SENSOR, parser.ushortval('E', active_extruder));
-    if (seenS) runout.enabled[tool] = parser.value_bool();
-    if (parser.seen('D') || parser.seen('L')) runout.set_runout_distance(parser.value_linear_units(), tool);
-    if (parser.seen('P')) {
-      const RunoutMode tmp_mode = (RunoutMode)parser.value_int();
-      switch (tmp_mode) {
-        case RM_NONE ... RM_OUT_ON_HIGH:
-        case RM_MOTION_SENSOR:
-          runout.mode[tool] = tmp_mode;
-          runout.setup();
-        default: break;
-      }
-    }
-  }
-  else {
-    #if DISABLED(SLIM_LCD_MENUS)
-      SERIAL_ECHO_START();
-      SERIAL_ECHOPGM("Filament runout ");
-      serialprint_onoff(runout.enabled[active_extruder]);
-      SERIAL_ECHOPGM(" ; Distance ", runout.runout_distance(active_extruder), "mm");
-      SERIAL_ECHOPGM(" ; Mode ", runout.mode[active_extruder]);
-      #if ENABLED(HOST_ACTION_COMMANDS)
-        SERIAL_ECHOPGM(" ; Host handling ");
-        serialprint_onoff(runout.host_handling);
-      #endif
-      SERIAL_EOL();
-    #else
-      M591_report(false);
-    #endif
-  }
-}
-
-void GcodeSuite::M591_report(const bool forReplay/*=true*/) {
-  report_heading_etc(forReplay, F(STR_FILAMENT_RUNOUT_SENSOR));
-  LOOP_S_L_N(e, 1, NUM_RUNOUT_SENSORS)
-    SERIAL_ECHOLNPGM(
-      "  M591"
-      #if MULTI_FILAMENT_SENSOR
-        " E", e,
-      #endif
-        " S", runout.enabled[e]
-      , " D", LINEAR_UNIT(runout.runout_distance(e))
-      , " P", runout.mode[e]
-    );
-}
-
-#endif // HAS_FILAMENT_SENSOR
@@ -75,26 +75,14 @@ GcodeSuite gcode;
 millis_t GcodeSuite::previous_move_ms = 0,
         GcodeSuite::max_inactive_time = 0;

-#if HAS_DISABLE_INACTIVE_AXIS
-  millis_t GcodeSuite::stepper_inactive_time = SEC_TO_MS(DEFAULT_STEPPER_DEACTIVE_TIME);
+#if HAS_DISABLE_IDLE_AXES
+  millis_t GcodeSuite::stepper_inactive_time = SEC_TO_MS(DEFAULT_STEPPER_TIMEOUT_SEC);
 #endif

 // Relative motion mode for each logical axis
-static constexpr xyze_bool_t ar_init = AXIS_RELATIVE_MODES;
-axis_bits_t GcodeSuite::axis_relative = 0 LOGICAL_AXIS_GANG(
-  | (ar_init.e << REL_E),
-  | (ar_init.x << REL_X),
-  | (ar_init.y << REL_Y),
-  | (ar_init.z << REL_Z),
-  | (ar_init.i << REL_I),
-  | (ar_init.j << REL_J),
-  | (ar_init.k << REL_K),
-  | (ar_init.u << REL_U),
-  | (ar_init.v << REL_V),
-  | (ar_init.w << REL_W)
-);
+relative_t GcodeSuite::axis_relative; // Init in constructor

-#if EITHER(HAS_AUTO_REPORTING, HOST_KEEPALIVE_FEATURE)
+#if ANY(HAS_AUTO_REPORTING, HOST_KEEPALIVE_FEATURE)
  bool GcodeSuite::autoreport_paused; // = false
 #endif

@@ -117,8 +105,7 @@ void GcodeSuite::report_heading(const bool forReplay, FSTR_P const fstr, const b
  if (forReplay) return;
  if (fstr) {
    SERIAL_ECHO_START();
-    SERIAL_ECHOPGM("; ");
-    SERIAL_ECHOF(fstr);
+    SERIAL_ECHO(F("; "), fstr);
  }
  if (eol) { SERIAL_CHAR(':'); SERIAL_EOL(); }
 }
@@ -135,14 +122,16 @@ void GcodeSuite::say_units() {
 * Return -1 if the T parameter is out of range
 */
 int8_t GcodeSuite::get_target_extruder_from_command() {
-  if (parser.seenval('T')) {
-    const int8_t e = parser.value_byte();
-    if (e < EXTRUDERS) return e;
-    SERIAL_ECHO_START();
-    SERIAL_CHAR('M'); SERIAL_ECHO(parser.codenum);
-    SERIAL_ECHOLNPGM(" " STR_INVALID_EXTRUDER " ", e);
-    return -1;
-  }
+  #if HAS_TOOLCHANGE
+    if (parser.seenval('T')) {
+      const int8_t e = parser.value_byte();
+      if (e < EXTRUDERS) return e;
+      SERIAL_ECHO_START();
+      SERIAL_CHAR('M'); SERIAL_ECHO(parser.codenum);
+      SERIAL_ECHOLNPGM(" " STR_INVALID_EXTRUDER " ", e);
+      return -1;
+    }
+  #endif
  return active_extruder;
 }

@@ -166,7 +155,7 @@ int8_t GcodeSuite::get_target_e_stepper_from_command(const int8_t dval/*=-1*/) {
 }

 /**
- * Set XYZ...E destination and feedrate from the current GCode command
+ * Set XYZ...E destination and feedrate from the current G-Code command
 *
 *  - Set destination from included axis codes
 *  - Set to current for missing axis codes
@@ -216,13 +205,13 @@ void GcodeSuite::get_destination_from_command() {
    TERN_(LASER_FEATURE, cutter.feedrate_mm_m = MMS_TO_MMM(feedrate_mm_s));
  }

-  #if BOTH(PRINTCOUNTER, HAS_EXTRUDERS)
+  #if ALL(PRINTCOUNTER, HAS_EXTRUDERS)
    if (!DEBUGGING(DRYRUN) && !skip_move)
      print_job_timer.incFilamentUsed(destination.e - current_position.e);
  #endif

  // Get ABCDHI mixing factors
-  #if BOTH(MIXING_EXTRUDER, DIRECT_MIXING_IN_G1)
+  #if ALL(MIXING_EXTRUDER, DIRECT_MIXING_IN_G1)
    M165();
  #endif

@@ -454,7 +443,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 61: G61(); break;                                    // G61:  Apply/restore saved coordinates.
      #endif

-      #if BOTH(PTC_PROBE, PTC_BED)
+      #if ALL(PTC_PROBE, PTC_BED)
        case 76: G76(); break;                                    // G76: Calibrate first layer compensation values
      #endif

@@ -472,7 +461,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
      #endif

      #if ENABLED(DEBUG_GCODE_PARSER)
-        case 800: parser.debug(); break;                          // G800: GCode Parser Test for G
+        case 800: parser.debug(); break;                          // G800: G-Code Parser Test for G
      #endif

      default: parser.unknown_command_warning(); break;
@@ -496,11 +485,11 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 7: M7(); break;                                      // M7: Coolant Mist ON
      #endif

-      #if EITHER(AIR_ASSIST, COOLANT_FLOOD)
+      #if ANY(AIR_ASSIST, COOLANT_FLOOD)
        case 8: M8(); break;                                      // M8: Air Assist / Coolant Flood ON
      #endif

-      #if EITHER(AIR_ASSIST, COOLANT_CONTROL)
+      #if ANY(AIR_ASSIST, COOLANT_CONTROL)
        case 9: M9(); break;                                      // M9: Air Assist / Coolant OFF
      #endif

@@ -519,7 +508,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {

      case 17: M17(); break;                                      // M17: Enable all stepper motors

-      #if ENABLED(SDSUPPORT)
+      #if HAS_MEDIA
        case 20: M20(); break;                                    // M20: List SD card
        case 21: M21(); break;                                    // M21: Init SD card
        case 22: M22(); break;                                    // M22: Release SD card
@@ -540,12 +529,12 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
          case 33: M33(); break;                                  // M33: Get the long full path to a file or folder
        #endif

-        #if BOTH(SDCARD_SORT_ALPHA, SDSORT_GCODE)
+        #if ALL(SDCARD_SORT_ALPHA, SDSORT_GCODE)
          case 34: M34(); break;                                  // M34: Set SD card sorting options
        #endif

        case 928: M928(); break;                                  // M928: Start SD write
-      #endif // SDSUPPORT
+      #endif // HAS_MEDIA

      case 31: M31(); break;                                      // M31: Report time since the start of SD print or last M109

@@ -581,7 +570,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 102: M102(); break;                                  // M102: Configure Bed Distance Sensor
      #endif

-      #if HAS_EXTRUDERS
+      #if HAS_HOTEND
        case 104: M104(); break;                                  // M104: Set hot end temperature
        case 109: M109(); break;                                  // M109: Wait for hotend temperature to reach target
      #endif
@@ -640,7 +629,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 154: M154(); break;                                  // M154: Set position auto-report interval
      #endif

-      #if BOTH(AUTO_REPORT_TEMPERATURES, HAS_TEMP_SENSOR)
+      #if ALL(AUTO_REPORT_TEMPERATURES, HAS_TEMP_SENSOR)
        case 155: M155(); break;                                  // M155: Set temperature auto-report interval
      #endif

@@ -671,11 +660,24 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 82: M82(); break;                                    // M82: Set E axis normal mode (same as other axes)
        case 83: M83(); break;                                    // M83: Set E axis relative mode
      #endif
+
      case 18: case 84: M18_M84(); break;                         // M18/M84: Disable Steppers / Set Timeout
      case 85: M85(); break;                                      // M85: Set inactivity stepper shutdown timeout
-      case 92: M92(); break;                                      // M92: Set the steps-per-unit for one or more axes
+
+      #if ENABLED(HOTEND_IDLE_TIMEOUT)
+        case 86: M86(); break;                                    // M86: Set Hotend Idle Timeout
+        case 87: M87(); break;                                    // M87: Cancel Hotend Idle Timeout
+      #endif
+
+      #if ENABLED(EDITABLE_STEPS_PER_UNIT)
+        case 92: M92(); break;                                    // M92: Set the steps-per-unit for one or more axes
+      #endif
+
      case 114: M114(); break;                                    // M114: Report current position
-      case 115: M115(); break;                                    // M115: Report capabilities
+
+      #if ENABLED(CAPABILITIES_REPORT)
+        case 115: M115(); break;                                  // M115: Report capabilities
+      #endif

      case 117: TERN_(HAS_STATUS_MESSAGE, M117()); break;         // M117: Set LCD message text, if possible

@@ -721,7 +723,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
      case 204: M204(); break;                                    // M204: Set acceleration
      case 205: M205(); break;                                    // M205: Set advanced settings

-      #if HAS_M206_COMMAND
+      #if HAS_HOME_OFFSET
        case 206: M206(); break;                                  // M206: Set home offsets
      #endif

@@ -769,6 +771,10 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {

      #if ENABLED(BABYSTEPPING)
        case 290: M290(); break;                                  // M290: Babystepping
+        #if ENABLED(EP_BABYSTEPPING)
+          case 293: IF_DISABLED(EMERGENCY_PARSER, M293()); break; // M293: Babystep up
+          case 294: IF_DISABLED(EMERGENCY_PARSER, M294()); break; // M294: Babystep down
+        #endif
      #endif

      #if HAS_SOUND
@@ -795,7 +801,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 250: M250(); break;                                  // M250: Set LCD contrast
      #endif

-      #if HAS_GCODE_M255
+      #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
        case 255: M255(); break;                                  // M255: Set LCD Sleep/Backlight Timeout (Minutes)
      #endif

@@ -836,7 +842,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 364: if (M364()) return; break;                      // M364: SCARA Psi pos3 (90 deg to Theta)
      #endif

-      #if EITHER(EXT_SOLENOID, MANUAL_SOLENOID_CONTROL)
+      #if ANY(EXT_SOLENOID, MANUAL_SOLENOID_CONTROL)
        case 380: M380(); break;                                  // M380: Activate solenoid on active (or specified) extruder
        case 381: M381(); break;                                  // M381: Disable all solenoids or, if MANUAL_SOLENOID_CONTROL, active (or specified) solenoid
      #endif
@@ -859,6 +865,10 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 407: M407(); break;                                  // M407: Display measured filament diameter
      #endif

+      #if HAS_FILAMENT_SENSOR
+        case 412: M412(); break;                                  // M412: Enable/Disable filament runout detection
+      #endif
+
      #if HAS_MULTI_LANGUAGE
        case 414: M414(); break;                                  // M414: Select multi language menu
      #endif
@@ -879,7 +889,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 425: M425(); break;                                  // M425: Tune backlash compensation
      #endif

-      #if HAS_M206_COMMAND
+      #if HAS_HOME_OFFSET
        case 428: M428(); break;                                  // M428: Apply current_position to home_offset
      #endif

@@ -891,6 +901,10 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 486: M486(); break;                                  // M486: Identify and cancel objects
      #endif

+      #if ENABLED(FT_MOTION)
+        case 493: M493(); break;                                  // M493: Fixed-Time Motion control
+      #endif
+
      case 500: M500(); break;                                    // M500: Store settings in EEPROM
      case 501: M501(); break;                                    // M501: Read settings from EEPROM
      case 502: M502(); break;                                    // M502: Revert to default settings
@@ -911,7 +925,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        #endif
      #endif

-      #if ENABLED(SDSUPPORT)
+      #if HAS_MEDIA
        case 524: M524(); break;                                  // M524: Abort the current SD print job
      #endif

@@ -929,14 +943,19 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 575: M575(); break;                                  // M575: Set serial baudrate
      #endif

-      #if HAS_FILAMENT_SENSOR
-        case 412: M412(); break;                                  // Alias to M591
-        case 591: M591(); break;                                  // M591 Configure filament runout detection
+      #if ENABLED(NONLINEAR_EXTRUSION)
+        case 592: M592(); break;                                  // M592: Nonlinear Extrusion control
+      #endif
+
+      #if HAS_ZV_SHAPING
+        case 593: M593(); break;                                  // M593: Input Shaping control
      #endif

      #if ENABLED(ADVANCED_PAUSE_FEATURE)
        case 600: M600(); break;                                  // M600: Pause for Filament Change
-        case 603: M603(); break;                                  // M603: Configure Filament Change
+        #if ENABLED(CONFIGURE_FILAMENT_CHANGE)
+          case 603: M603(); break;                                  // M603: Configure Filament Change
+        #endif
      #endif

      #if HAS_DUPLICATION_MODE
@@ -947,7 +966,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 665: M665(); break;                                  // M665: Set Kinematics parameters
      #endif

-      #if ENABLED(DELTA) || HAS_EXTRA_ENDSTOPS
+      #if ANY(DELTA, HAS_EXTRA_ENDSTOPS)
        case 666: M666(); break;                                  // M666: Set delta or multiple endstop adjustment
      #endif

@@ -988,7 +1007,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {

      #if ANY(HAS_MOTOR_CURRENT_SPI, HAS_MOTOR_CURRENT_PWM, HAS_MOTOR_CURRENT_I2C, HAS_MOTOR_CURRENT_DAC)
        case 907: M907(); break;                                  // M907: Set digital trimpot motor current using axis codes.
-        #if EITHER(HAS_MOTOR_CURRENT_SPI, HAS_MOTOR_CURRENT_DAC)
+        #if ANY(HAS_MOTOR_CURRENT_SPI, HAS_MOTOR_CURRENT_DAC)
          case 908: M908(); break;                                // M908: Control digital trimpot directly.
          #if HAS_MOTOR_CURRENT_DAC
            case 909: M909(); break;                              // M909: Print digipot/DAC current value
@@ -1026,7 +1045,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
      #endif

      #if ENABLED(DEBUG_GCODE_PARSER)
-        case 800: parser.debug(); break;                          // M800: GCode Parser Test for M
+        case 800: parser.debug(); break;                          // M800: G-Code Parser Test for M
      #endif

      #if ENABLED(GCODE_REPEAT_MARKERS)
@@ -1054,7 +1073,11 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 422: M422(); break;                                  // M422: Set Z Stepper automatic alignment position using probe
      #endif

-      #if ALL(SPI_FLASH, SDSUPPORT, MARLIN_DEV_MODE)
+      #if ENABLED(OTA_FIRMWARE_UPDATE)
+        case 936: M936(); break;                                  // M936: OTA update firmware.
+      #endif
+
+      #if SPI_FLASH_BACKUP
        case 993: M993(); break;                                  // M993: Backup SPI Flash to SD
        case 994: M994(); break;                                  // M994: Load a Backup from SD to SPI Flash
      #endif
@@ -1074,14 +1097,18 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
        case 1000: M1000(); break;                                // M1000: [INTERNAL] Resume from power-loss
      #endif

-      #if ENABLED(SDSUPPORT)
+      #if HAS_MEDIA
        case 1001: M1001(); break;                                // M1001: [INTERNAL] Handle SD completion
      #endif

-      #if ENABLED(DGUS_LCD_UI_MKS)
+      #if DGUS_LCD_UI_MKS
        case 1002: M1002(); break;                                // M1002: [INTERNAL] Tool-change and Relative E Move
      #endif

+      #if ENABLED(ONE_CLICK_PRINT)
+        case 1003: M1003(); break;                                // M1003: [INTERNAL] Set the current dir to /
+      #endif
+
      #if ENABLED(UBL_MESH_WIZARD)
        case 1004: M1004(); break;                                // M1004: UBL Mesh Wizard
      #endif
@@ -1117,7 +1144,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {

  if (!no_ok) queue.ok_to_send();

-  SERIAL_OUT(msgDone); // Call the msgDone serial hook to signal command processing done
+  SERIAL_IMPL.msgDone(); // Call the msgDone serial hook to signal command processing done
 }

 #if ENABLED(M100_FREE_MEMORY_DUMPER)
@@ -1164,10 +1191,7 @@ void GcodeSuite::process_subcommands_now(FSTR_P fgcode) {
  for (;;) {
    PGM_P const delim = strchr_P(pgcode, '\n');       // Get address of next newline
    const size_t len = delim ? delim - pgcode : strlen_P(pgcode); // Get the command length
-    char cmd[len + 1];                                // Allocate a stack buffer
-    strncpy_P(cmd, pgcode, len);                      // Copy the command to the stack
-    cmd[len] = '\0';                                  // End with a nul
-    parser.parse(cmd);                                // Parse the command
+    parser.parse(MString<MAX_CMD_SIZE>().setn_P(pgcode, len));    // Parse the command
    process_parsed_command(true);                     // Process it (no "ok")
    if (!delim) break;                                // Last command?
    pgcode = delim + 1;                               // Get the next command
@@ -143,7 +143,7 @@
 *        R<temp> Wait for extruder current temp to reach target temp. ** Wait for heating or cooling. **
 *        If AUTOTEMP is enabled, S<mintemp> B<maxtemp> F<factor>. Exit autotemp by any M109 without F
 *
- * M110 - Set the current line number. (Used by host printing)
+ * M110 - Get or set the current line number. (Used by host printing)
 * M111 - Set debug flags: "M111 S<flagbits>". See flag bits defined in enum.h.
 * M112 - Full Shutdown.
 *
@@ -234,6 +234,7 @@
 * M406 - Disable Filament Sensor flow control. (Requires FILAMENT_WIDTH_SENSOR)
 * M407 - Display measured filament diameter in millimeters. (Requires FILAMENT_WIDTH_SENSOR)
 * M410 - Quickstop. Abort all planned moves.
+ * M412 - Enable / Disable Filament Runout Detection. (Requires FILAMENT_RUNOUT_SENSOR)
 * M413 - Enable / Disable Power-Loss Recovery. (Requires POWER_LOSS_RECOVERY)
 * M414 - Set language by index. (Requires LCD_LANGUAGE_2...)
 * M420 - Enable/Disable Leveling (with current values) S1=enable S0=disable (Requires MESH_BED_LEVELING or ABL)
@@ -260,7 +261,6 @@
 * M575 - Change the serial baud rate. (Requires BAUD_RATE_GCODE)
 * M592 - Get or set nonlinear extrusion parameters. (Requires NONLINEAR_EXTRUSION)
 * M593 - Get or set input shaping parameters. (Requires INPUT_SHAPING_[XY])
- * M591 - Configure Filament Runout Detection. (Requires FILAMENT_RUNOUT_SENSOR)
 * M600 - Pause for filament change: "M600 X<pos> Y<pos> Z<raise> E<first_retract> L<later_retract>". (Requires ADVANCED_PAUSE_FEATURE)
 * M603 - Configure filament change: "M603 T<tool> U<unload_length> L<load_length>". (Requires ADVANCED_PAUSE_FEATURE)
 * M605 - Set Dual X-Carriage movement mode: "M605 S<mode> [X<x_offset>] [R<temp_offset>]". (Requires DUAL_X_CARRIAGE)
@@ -1035,9 +1035,8 @@ private:
  #endif

  #if HAS_FILAMENT_SENSOR
-    static void M412() { M591(); }
-    static void M591();
-    static void M591_report(const bool forReplay=true);
+    static void M412();
+    static void M412_report(const bool forReplay=true);
  #endif

  #if HAS_MULTI_LANGUAGE
@@ -1277,6 +1276,10 @@ private:
    static void M1002();
  #endif

+  #if ENABLED(ONE_CLICK_PRINT)
+    static void M1003();
+  #endif
+
  #if ENABLED(UBL_MESH_WIZARD)
    static void M1004();
  #endif
@@ -24,11 +24,19 @@
 #include "../queue.h" // for last_N

 /**
- * M110: Set Current Line Number
+ * M110: Get or set Current Line Number
+ *
+ * Parameters:
+ *   N<int>  Number to set as last-processed command
+ *
+ * Without parameters:
+ *   Report the last-processed (not last-received or last-enqueued) command
+ *   (To purge the queue and resume from this line, the host should use 'M999' instead.)
 */
 void GcodeSuite::M110() {

  if (parser.seenval('N'))
    queue.set_current_line_number(parser.value_long());
-
+  else
+    SERIAL_ECHOLNPGM(STR_LINE_NO, queue.get_current_line_number());
 }
@@ -154,7 +154,7 @@ void GcodeSuite::M115() {
    // AUTOLEVEL (G29)
    cap_line(F("AUTOLEVEL"), ENABLED(HAS_AUTOLEVEL));

-    // RUNOUT (M591, M600)
+    // RUNOUT (M412, M600)
    cap_line(F("RUNOUT"), ENABLED(FILAMENT_RUNOUT_SENSOR));

    // Z_PROBE (G30)
@@ -55,7 +55,7 @@ inline bool G38_run_probe() {
    }
  #endif

-  planner.synchronize();  // wait until the machine is idle
+  planner.synchronize(); // Wait until the machine is idle

  // Move flag value
  #if ENABLED(G38_PROBE_AWAY)
@@ -54,6 +54,21 @@ void mpe_settings_init() {
  mpe_settings_report();
 }

+/**
+ * M951: Magnetic Parking Extruder
+ *
+ * Parameters:
+ *   L<linear>    : Set X[0] position
+ *   R<linear>    : Set X[1] position
+ *   I<linear>    : Set grab distance
+ *   J<feedrate>  : Set slow feedrate
+ *   H<feedrate>  : Set fast feedrate
+ *   D<feedrate>  : Set travel feedrate
+ *   C<factor>    : Set compensation factor
+ *
+ * With no parameters report the current settings.
+ *
+ */
 void GcodeSuite::M951() {
  if (parser.seenval('L')) mpe_settings.parking_xpos[0] = parser.value_linear_units();
  if (parser.seenval('R')) mpe_settings.parking_xpos[1] = parser.value_linear_units();
@@ -212,6 +212,11 @@ public:
   */
  static void set_current_line_number(long n) { serial_state[ring_buffer.command_port().index].last_N = n; }

+  /**
+   * Get the current line number for the last received command
+   */
+  static long get_current_line_number() { return serial_state[ring_buffer.command_port().index].last_N; }
+
  #if ENABLED(BUFFER_MONITORING)

    private:
--- a/Show More
+++ b/Show More