Update runout.h

Pass 1 builds - Switch and Motion support dropped temporarily
2024-07-13 12:36:49 -04:00 · 2024-07-13 12:36:48 -04:00 · 2024-07-13 12:36:48 -04:00 · 2024-07-13 12:36:48 -04:00 · 2024-07-12 00:23:21 +00:00 · 2024-07-11 16:27:52 -05:00
465 changed files with 6739 additions and 5815 deletions
@@ -14,6 +14,8 @@ on:
    - config/**
    - data/**
    - docs/**
+    - test/**
+    - Marlin/tests/**
    - '**/*.md'
  push:
    branches:
@@ -23,6 +25,8 @@ on:
    - config/**
    - data/**
    - docs/**
+    - test/**
+    - Marlin/tests/**
    - '**/*.md'

 jobs:
@@ -33,6 +37,7 @@ jobs:
    runs-on: ubuntu-latest

    strategy:
+      fail-fast: true
      matrix:
        test-platform:

@@ -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
@@ -2,22 +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 unit-test-single-ci      : Run a single code test from inside the CI"
-#	@echo "make unit-test-single-local   : Run a single code test locally"
-#	@echo "make unit-test-single-local-docker : Run a single code test locally, using docker-compose"
+	@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-compose"
-	@echo "make setup-local-docker        : Setup local docker-compose"
+	@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"
@@ -27,6 +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!"
@@ -51,27 +55,29 @@ tests-single-local-docker:
 	$(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)

-#unit-test-single-ci:
-#	export GIT_RESET_HARD=true
-#	$(MAKE) unit-test-single-local TEST_TARGET=$(TEST_TARGET)
+unit-test-single-local:
+	platformio run -t marlin_$(UNIT_TEST_CONFIG) -e linux_native_test

-# TODO: How can we limit tests with ONLY_TEST with platformio?
-#unit-test-single-local:
-#	@if ! test -n "$(TEST_TARGET)" ; then echo "***ERROR*** Set TEST_TARGET=<your-module> or use make unit-test-all-local" ; return 1; fi
-#	platformio run -t marlin_$(TEST_TARGET)
-
-#unit-test-single-local-docker:
-#	@if ! test -n "$(TEST_TARGET)" ; then echo "***ERROR*** Set TEST_TARGET=<your-module> or use make unit-test-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)  $(CONTAINER_IMAGE) make unit-test-single-local TEST_TARGET=$(TEST_TARGET) ONLY_TEST="$(ONLY_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
@@ -85,7 +91,14 @@ setup-local-docker:

 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)
@@ -112,6 +112,16 @@
 //#define SERIAL_PORT_3 1
 //#define BAUDRATE_3 250000   // :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000] Enable to override BAUDRATE

+/**
+ * Select a serial port to communicate with RS485 protocol
+ * :[-1, 0, 1, 2, 3, 4, 5, 6, 7]
+ */
+//#define RS485_SERIAL_PORT 1
+#ifdef RS485_SERIAL_PORT
+  //#define M485_PROTOCOL 1   // Check your host for protocol compatibility
+  //#define RS485_BUS_BUFFER_SIZE 128
+#endif
+
 // Enable the Bluetooth serial interface on AT90USB devices
 //#define BLUETOOTH

@@ -672,7 +682,7 @@
 * MPCTEMP : Predictive Model temperature control. (~1.8K without auto-tune)
 */
 #define PIDTEMP           // See the PID Tuning Guide at https://reprap.org/wiki/PID_Tuning
-//#define MPCTEMP         // ** EXPERIMENTAL ** See https://marlinfw.org/docs/features/model_predictive_control.html
+//#define MPCTEMP         // See https://marlinfw.org/docs/features/model_predictive_control.html

 #define PID_MAX  255      // Limit hotend current while PID is active (see PID_FUNCTIONAL_RANGE below); 255=full current
 #define PID_K1     0.95   // Smoothing factor within any PID loop
@@ -1898,12 +1908,11 @@
 * RAMPS-based boards use SERVO3_PIN for the first runout sensor.
 * For other boards you may need to define FIL_RUNOUT_PIN, FIL_RUNOUT2_PIN, etc.
 */
-//#define FILAMENT_RUNOUT_SENSOR
+#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
-  #define FIL_RUNOUT_ENABLED_DEFAULT true // Enable the sensor on startup. Override with M412 followed by M500.
-  #define NUM_RUNOUT_SENSORS   1          // Number of sensors, up to one per extruder. Define a FIL_RUNOUT#_PIN for each.
+  #define FIL_RUNOUT_ENABLED { true } // Default enabled state for sensors E0[, E1[, E2[, E3...]]]. Override with M591EnnSn followed by M500.
+  #define FIL_RUNOUT_MODE    { 7 }    // Default mode for sensors E0[, E1[, E2[, E3...]]]. 0:NONE  1:Switch NO  2:Switch NC  7:Motion Sensor Override with M591EnPnn

-  #define FIL_RUNOUT_STATE     LOW        // Pin state indicating that filament is NOT present.
  #define FIL_RUNOUT_PULLUP               // Use internal pullup for filament runout pins.
  //#define FIL_RUNOUT_PULLDOWN           // Use internal pulldown for filament runout pins.
  //#define WATCH_ALL_RUNOUT_SENSORS      // Execute runout script on any triggering sensor, not only for the active extruder.
@@ -1947,58 +1956,11 @@
  // NOTE: After 'M412 H1' the host handles filament runout and this script does not apply.
  #define FILAMENT_RUNOUT_SCRIPT "M600"

-  // After a runout is detected, continue printing this length of filament
-  // before executing the runout script. Useful for a sensor at the end of
-  // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.
-  //#define FILAMENT_RUNOUT_DISTANCE_MM 25
-
-  #ifdef FILAMENT_RUNOUT_DISTANCE_MM
-    // Enable this option to use an encoder disc that toggles the runout pin
-    // as the filament moves. (Be sure to set FILAMENT_RUNOUT_DISTANCE_MM
-    // large enough to avoid false positives.)
-    //#define FILAMENT_MOTION_SENSOR
-
-    #if ENABLED(FILAMENT_MOTION_SENSOR)
-      //#define FILAMENT_SWITCH_AND_MOTION
-      #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
-        #define NUM_MOTION_SENSORS   1          // Number of sensors, up to one per extruder. Define a FIL_MOTION#_PIN for each.
-        //#define FIL_MOTION1_PIN    -1
-
-        // Override individually if the motion sensors vary
-        //#define FIL_MOTION1_STATE LOW
-        //#define FIL_MOTION1_PULLUP
-        //#define FIL_MOTION1_PULLDOWN
-
-        //#define FIL_MOTION2_STATE LOW
-        //#define FIL_MOTION2_PULLUP
-        //#define FIL_MOTION2_PULLDOWN
-
-        //#define FIL_MOTION3_STATE LOW
-        //#define FIL_MOTION3_PULLUP
-        //#define FIL_MOTION3_PULLDOWN
-
-        //#define FIL_MOTION4_STATE LOW
-        //#define FIL_MOTION4_PULLUP
-        //#define FIL_MOTION4_PULLDOWN
-
-        //#define FIL_MOTION5_STATE LOW
-        //#define FIL_MOTION5_PULLUP
-        //#define FIL_MOTION5_PULLDOWN
-
-        //#define FIL_MOTION6_STATE LOW
-        //#define FIL_MOTION6_PULLUP
-        //#define FIL_MOTION6_PULLDOWN
-
-        //#define FIL_MOTION7_STATE LOW
-        //#define FIL_MOTION7_PULLUP
-        //#define FIL_MOTION7_PULLDOWN
-
-        //#define FIL_MOTION8_STATE LOW
-        //#define FIL_MOTION8_PULLUP
-        //#define FIL_MOTION8_PULLDOWN
-      #endif
-    #endif
-  #endif
+  // In Mode 1 or 2, continue printing this length of filament after a run out occurs before executing the
+  // runout script. Useful for a sensor at the end of a feed tube or debounce on a flakey sensor.
+  // In Mode 7, extrusion distance to expect a change of state.
+  // Override with M591EnLnn
+  #define FILAMENT_RUNOUT_DISTANCE_MM 5
 #endif

 //===========================================================================
@@ -2218,7 +2180,7 @@
 #if ENABLED(LCD_BED_TRAMMING)
  #define BED_TRAMMING_INSET_LFRB { 30, 30, 30, 30 } // (mm) Left, Front, Right, Back insets
  #define BED_TRAMMING_HEIGHT      0.0        // (mm) Z height of nozzle at tramming points
-  #define BED_TRAMMING_Z_HOP       4.0        // (mm) Z height of nozzle between tramming points
+  #define BED_TRAMMING_Z_HOP       4.0        // (mm) Z raise between tramming points
  //#define BED_TRAMMING_INCLUDE_CENTER       // Move to the center after the last corner
  //#define BED_TRAMMING_USE_PROBE
  #if ENABLED(BED_TRAMMING_USE_PROBE)
@@ -2421,7 +2383,7 @@
 *    P1  Raise the nozzle always to Z-park height.
 *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
 */
-//#define NOZZLE_PARK_FEATURE
+#define NOZZLE_PARK_FEATURE

 #if ENABLED(NOZZLE_PARK_FEATURE)
  // Specify a park position as { X, Y, Z_raise }
@@ -3415,7 +3377,9 @@
  #define BUTTON_DELAY_EDIT      50 // (ms) Button repeat delay for edit screens
  #define BUTTON_DELAY_MENU     250 // (ms) Button repeat delay for menus

-  //#define DISABLE_ENCODER         // Disable the click encoder, if any
+  #if ANY(TFT_CLASSIC_UI, TFT_COLOR_UI)
+    //#define NO_BACK_MENU_ITEM     // Don't display a top menu item to go back to the parent menu
+  #endif

  #define TOUCH_SCREEN_CALIBRATION

@@ -604,6 +604,8 @@
 */
 //#define FAN_KICKSTART_TIME  100  // (ms)
 //#define FAN_KICKSTART_POWER 180  // 64-255
+//#define FAN_KICKSTART_LINEAR     // Set kickstart time linearly based on the speed, e.g., for 20% (51) it will be FAN_KICKSTART_TIME * 0.2.
+                                   // Useful for quick speed up to low speed. Kickstart power must be set to 255.

 // Some coolers may require a non-zero "off" state.
 //#define FAN_OFF_PWM  1
@@ -1185,24 +1187,19 @@
 * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
 *
 * This option uses a lot of SRAM for the step buffer. The buffer size is
- * calculated automatically from SHAPING_FREQ_[XY], DEFAULT_AXIS_STEPS_PER_UNIT,
+ * calculated automatically from SHAPING_FREQ_[XYZ], DEFAULT_AXIS_STEPS_PER_UNIT,
 * DEFAULT_MAX_FEEDRATE and ADAPTIVE_STEP_SMOOTHING. The default calculation can
 * be overridden by setting SHAPING_MIN_FREQ and/or SHAPING_MAX_FEEDRATE.
 * The higher the frequency and the lower the feedrate, the smaller the buffer.
 * If the buffer is too small at runtime, input shaping will have reduced
 * effectiveness during high speed movements.
 *
- * Tune with M593 D<factor> F<frequency>:
- *
- *  D<factor>    Set the zeta/damping factor. If axes (X, Y, etc.) are not specified, set for all axes.
- *  F<frequency> Set the frequency. If axes (X, Y, etc.) are not specified, set for all axes.
- *  T[map]       Input Shaping type, 0:ZV, 1:EI, 2:2H EI (not implemented yet)
- *  X<1>         Set the given parameters only for the X axis.
- *  Y<1>         Set the given parameters only for the Y axis.
+ * Tune with M593 D<factor> F<frequency>
 */
 //#define INPUT_SHAPING_X
 //#define INPUT_SHAPING_Y
-#if ANY(INPUT_SHAPING_X, INPUT_SHAPING_Y)
+//#define INPUT_SHAPING_Z
+#if ANY(INPUT_SHAPING_X, INPUT_SHAPING_Y, INPUT_SHAPING_Z)
  #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).
@@ -1211,6 +1208,10 @@
    #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).
  #endif
+  #if ENABLED(INPUT_SHAPING_Z)
+    #define SHAPING_FREQ_Z  40.0        // (Hz) The default dominant resonant frequency on the Z axis.
+    #define SHAPING_ZETA_Z   0.15       // Damping ratio of the Z 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_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.
@@ -1332,8 +1333,6 @@
  //#define CALIBRATION_SCRIPT_PRE  "M117 Starting Auto-Calibration\nT0\nG28\nG12\nM117 Calibrating..."
  //#define CALIBRATION_SCRIPT_POST "M500\nM117 Calibration data saved"

-  #define CALIBRATION_MEASUREMENT_RESOLUTION     0.01 // mm
-
  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/min
  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/min
  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/min
@@ -1584,7 +1583,7 @@
    #if HAS_MARLINUI_U8GLIB
      //#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)
+    #if ANY(HAS_MARLINUI_U8GLIB, TOUCH_UI_FTDI_EVE, HAS_MARLINUI_HD44780)
      //#define SHOW_CUSTOM_BOOTSCREEN    // Show the bitmap in Marlin/_Bootscreen.h on startup.
    #endif
  #endif
@@ -2330,6 +2329,7 @@
 *
 * Control extrusion rate based on instantaneous extruder velocity. Can be used to correct for
 * underextrusion at high extruder speeds that are otherwise well-behaved (i.e., not skipping).
+ * For better results also enable ADAPTIVE_STEP_SMOOTHING.
 */
 //#define NONLINEAR_EXTRUSION

@@ -2557,27 +2557,28 @@
 //#define MINIMUM_STEPPER_PRE_DIR_DELAY 650

 /**
- * Minimum stepper driver pulse width (in µs)
- *   0 : Smallest possible width the MCU can produce, compatible with TMC2xxx drivers
- *   0 : Minimum 500ns for LV8729, adjusted in stepper.h
- *   1 : Minimum for A4988 and A5984 stepper drivers
- *   2 : Minimum for DRV8825 stepper drivers
- *   3 : Minimum for TB6600 stepper drivers
- *  30 : Minimum for TB6560 stepper drivers
+ * Minimum stepper driver pulse width (in ns)
+ * If undefined, these defaults (from Conditionals_adv.h) apply:
+ *     100 : Minimum for TMC2xxx stepper drivers
+ *     500 : Minimum for LV8729
+ *    1000 : Minimum for A4988 and A5984 stepper drivers
+ *    2000 : Minimum for DRV8825 stepper drivers
+ *    3000 : Minimum for TB6600 stepper drivers
+ *   30000 : Minimum for TB6560 stepper drivers
 *
 * Override the default value based on the driver type set in Configuration.h.
 */
-//#define MINIMUM_STEPPER_PULSE 2
+//#define MINIMUM_STEPPER_PULSE_NS 2000

 /**
 * Maximum stepping rate (in Hz) the stepper driver allows
- *  If undefined, defaults to 1MHz / (2 * MINIMUM_STEPPER_PULSE)
+ * If undefined, these defaults (from Conditionals_adv.h) apply:
 *  5000000 : Maximum for TMC2xxx stepper drivers
 *  1000000 : Maximum for LV8729 stepper driver
- *  500000  : Maximum for A4988 stepper driver
- *  250000  : Maximum for DRV8825 stepper driver
- *  150000  : Maximum for TB6600 stepper driver
- *   15000  : Maximum for TB6560 stepper driver
+ *   500000 : Maximum for A4988 stepper driver
+ *   250000 : Maximum for DRV8825 stepper driver
+ *   150000 : Maximum for TB6600 stepper driver
+ *    15000 : Maximum for TB6560 stepper driver
 *
 * Override the default value based on the driver type set in Configuration.h.
 */
@@ -2654,7 +2655,7 @@
 * Currently handles M108, M112, M410, M876
 * NOTE: Not yet implemented for all platforms.
 */
-//#define EMERGENCY_PARSER
+#define EMERGENCY_PARSER

 /**
 * Realtime Reporting (requires EMERGENCY_PARSER)
@@ -2887,7 +2888,7 @@
 *
 * Enable PARK_HEAD_ON_PAUSE to add the G-code M125 Pause and Park.
 */
-//#define ADVANCED_PAUSE_FEATURE
+#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            2  // (mm) Initial retract.
@@ -4261,7 +4262,8 @@

 /**
 * Instant freeze / unfreeze functionality
- * Potentially useful for emergency stop that allows being resumed.
+ * Potentially useful for rapid stop that allows being resumed. Halts stepper movement.
+ * Note this does NOT pause spindles, lasers, fans, heaters or any other auxiliary device.
 * @section interface
 */
 //#define FREEZE_FEATURE
@@ -41,7 +41,7 @@
 * here we define this default string as the date where the latest release
 * version was tagged.
 */
-//#define STRING_DISTRIBUTION_DATE "2024-04-15"
+//#define STRING_DISTRIBUTION_DATE "2024-07-12"

 /**
 * Defines a generic printer name to be output to the LCD after booting Marlin.
@@ -141,7 +141,7 @@ typedef Servo hal_servo_t;
    #error "LCD_SERIAL_PORT must be from 0 to 3."
  #endif
  #define LCD_SERIAL lcdSerial
-  #if HAS_DGUS_LCD
+  #if ANY(HAS_DGUS_LCD, EXTENSIBLE_UI)
    #define LCD_SERIAL_TX_BUFFER_FREE() LCD_SERIAL.get_tx_buffer_free()
  #endif
 #endif
@@ -159,7 +159,7 @@ typedef Servo hal_servo_t;
 #define GET_PIN_MAP_INDEX(pin) pin
 #define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval)

-#define HAL_SENSITIVE_PINS 0, 1,
+#define HAL_SENSITIVE_PINS 0, 1

 #ifdef __AVR_AT90USB1286__
  #define JTAG_DISABLE() do{ MCUCR = 0x80; MCUCR = 0x80; }while(0)
@@ -629,7 +629,7 @@ MSerialT1 customizedSerial1(MSerialT1::HasEmergencyParser);
  template class MarlinSerial< LCDSerialCfg<LCD_SERIAL_PORT> >;
  MSerialLCD lcdSerial(MSerialLCD::HasEmergencyParser);

-  #if HAS_DGUS_LCD
+  #if ANY(HAS_DGUS_LCD, EXTENSIBLE_UI)
    template<typename Cfg>
    typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::get_tx_buffer_free() {
      const ring_buffer_pos_t t = tx_buffer.tail,  // next byte to send.
@@ -205,7 +205,7 @@
    static ring_buffer_pos_t available();
    static void write(const uint8_t c);
    static void flushTX();
-    #if HAS_DGUS_LCD
+    #if ANY(HAS_DGUS_LCD, EXTENSIBLE_UI)
      static ring_buffer_pos_t get_tx_buffer_free();
    #endif

@@ -345,6 +345,14 @@ void setup_endstop_interrupts() {
      pciSetup(Z_MIN_PROBE_PIN);
    #endif
  #endif
+  #if USE_CALIBRATION
+    #if (digitalPinToInterrupt(CALIBRATION_PIN) != NOT_AN_INTERRUPT)
+      _ATTACH(CALIBRATION_PIN);
+    #else
+      static_assert(digitalPinHasPCICR(CALIBRATION_PIN), "CALIBRATION_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      pciSetup(CALIBRATION_PIN);
+    #endif
+  #endif

  // If we arrive here without raising an assertion, each pin has either an EXT-interrupt or a PCI.
 }
@@ -150,7 +150,7 @@ void MarlinHAL::set_pwm_frequency(const pin_t pin, const uint16_t f_desired) {
      else {
        if (p == 32 || p == 128) continue;                    // Skip TIMER2 specific prescalers when not TIMER2
        const uint16_t rft = (F_CPU) / (p * f_desired);
-        DEBUG_ECHOLNPGM("(Not Timer 2) F_CPU=" STRINGIFY(F_CPU), " prescaler=", p, " f_desired=", f_desired);
+        DEBUG_ECHOLNPGM("(Not Timer 2) F_CPU=", STRINGIFY(F_CPU), " prescaler=", p, " f_desired=", f_desired);
        res_fast_temp = rft - 1;
        res_pc_temp = rft / 2;
      }
@@ -28,9 +28,6 @@
 *   Port          : E0 E1 E4 E5 G5 E3 H3 H4 H5 H6 B4 B5 B6 B7 J1 J0 H1 H0 D3 D2 D1 D0 A0 A1 A2 A3 A4 A5 A6 A7 C7 C6 C5 C4 C3 C2 C1 C0 D7 G2 G1 G0 L7 L6 L5 L4 L3 L2 L1 L0 B3 B2 B1 B0 F0 F1 F2 F3 F4 F5 F6 F7 K0 K1 K2 K3 K4 K5 K6 K7 | E2 E6 E7 xx xx H2 H7 G3 G4 xx xx xx xx xx D4 D5 D6 xx xx J2 J3 J4 J5 J6 J7 xx xx xx xx xx
 *   Logical Pin   : 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | 78 79 80 xx xx 84 85 71 70 xx xx xx xx xx 81 82 83 xx xx 72 73 75 76 77 74 xx xx xx xx xx
 *   Analog Input  :                                                                                                                                                                    0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15
- *
- * Arduino Pin Layout video: https://youtu.be/rIqeVCX09FA
- * AVR alternate pin function overview video: https://youtu.be/1yd8wuI5Plg
 */

 #include "../fastio.h"
@@ -26,9 +26,6 @@
 *
 *   Logical Pin: 38 39 40 41 42 43 44 45 16 10 11 12 06 07 08 09 30 31 32 33 34 35 36 37 17 18 19 20 21 22 23 24 00 01 13 05 02 03 14 15 46 47 48 49 50 51 52 53 25 26 27 28 29 04
 *   Port:        A0 A1 A2 A3 A4 A5 A6 A7 B0 B1 B2 B3 B4 B5 B6 B7 C0 C1 C2 C3 C4 C5 C6 C7 D0 D1 D2 D3 D4 D5 D6 D7 E0 E1 E2 E3 E4 E5 E6 E7 F0 F1 F2 F3 F4 F5 F6 F7 G0 G1 G2 G3 G4 G5
- *
- * Arduino Pin Layout video: https://youtu.be/rIqeVCX09FA
- * AVR alternate pin function overview video: https://youtu.be/1yd8wuI5Plg
 */

 #include "../fastio.h"
@@ -26,9 +26,6 @@
 *
 *   Logical Pin: 08 09 10 11 12 13 14 15 16 17 18 19 20 21 00 01 02 03 04 05 06 07
 *   Port:        B0 B1 B2 B3 B4 B5 C0 C1 C2 C3 C4 C5 C6 C7 D0 D1 D2 D3 D4 D5 D6 D7
- *
- * Arduino Pin Layout video: https://youtu.be/rIqeVCX09FA
- * AVR alternate pin function overview video: https://youtu.be/1yd8wuI5Plg
 */

 #include "../fastio.h"
@@ -26,9 +26,6 @@
 *
 *   Logical Pin: 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
 *   Port:        B0 B1 B2 B3 B4 B5 B6 B7 D0 D1 D2 D3 D4 D5 D6 D7 C0 C1 C2 C3 C4 C5 C6 C7 A7 A6 A5 A4 A3 A2 A1 A0
- *
- * Arduino Pin Layout video: https://youtu.be/rIqeVCX09FA
- * AVR alternate pin function overview video: https://youtu.be/1yd8wuI5Plg
 */

 /**                        ATMega644
@@ -27,9 +27,6 @@
 *   Logical Pin: 28 29 30 31 32 33 34 35 20 21 22 23 24 25 26 27 10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07 08 09(46*47)36 37 18 19 38 39 40 41 42 43 44 45
 *   Port:        A0 A1 A2 A3 A4 A5 A6 A7 B0 B1 B2 B3 B4 B5 B6 B7 C0 C1 C2 C3 C4 C5 C6 C7 D0 D1 D2 D3 D4 D5 D6 D7 E0 E1 E2 E3 E4 E5 E6 E7 F0 F1 F2 F3 F4 F5 F6 F7
 *            The logical pins 46 and 47 are not supported by Teensyduino, but are supported below as E2 and E3
- *
- * Arduino Pin Layout video: https://youtu.be/rIqeVCX09FA
- * AVR alternate pin function overview video: https://youtu.be/1yd8wuI5Plg
 */

 #include "../fastio.h"
@@ -120,7 +120,7 @@ void u8g_spiSend_sw_AVR_mode_3(uint8_t val) {
  U8G_ATOMIC_END();
 }

-#if ENABLED(FYSETC_MINI_12864)
+#if U8G_SPI_USE_MODE_3
  #define SPISEND_SW_AVR u8g_spiSend_sw_AVR_mode_3
 #else
  #define SPISEND_SW_AVR u8g_spiSend_sw_AVR_mode_0
@@ -143,9 +143,9 @@ uint8_t u8g_com_HAL_AVR_sw_sp_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void
      break;

    case U8G_COM_MSG_CHIP_SELECT:
-      #if ENABLED(FYSETC_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
+      #if U8G_SPI_USE_MODE_3                                  // 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_com_arduino_digital_write(u8g, U8G_PI_SCK, 1);  // Set SCK to mode 3 idle state before CS goes active
          u8g_com_arduino_digital_write(u8g, U8G_PI_CS, LOW);
        }
@@ -64,6 +64,7 @@ void setup_endstop_interrupts() {
  TERN_(USE_Z4_MAX,      _ATTACH(Z4_MAX_PIN));
  TERN_(USE_Z4_MIN,      _ATTACH(Z4_MIN_PIN));
  TERN_(USE_Z_MIN_PROBE, _ATTACH(Z_MIN_PROBE_PIN));
+  TERN_(USE_CALIBRATION, _ATTACH(CALIBRATION_PIN));
  TERN_(USE_I_MAX,       _ATTACH(I_MAX_PIN));
  TERN_(USE_I_MIN,       _ATTACH(I_MIN_PIN));
  TERN_(USE_J_MAX,       _ATTACH(J_MAX_PIN));
@@ -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
@@ -68,16 +68,15 @@
 * Usually the hardware SPI pins are only available to the LCD. This makes the DUE hard SPI used at the same time
 * as the TMC2130 soft SPI the most common setup.
 */
-#define _IS_HW_SPI(P) (defined(TMC_SPI_##P) && (TMC_SPI_##P == SD_MOSI_PIN || TMC_SPI_##P == SD_MISO_PIN || TMC_SPI_##P == SD_SCK_PIN))
-
 #if HAS_MEDIA && HAS_DRIVER(TMC2130)
-  #if ENABLED(TMC_USE_SW_SPI)
-    #if DISABLED(SOFTWARE_SPI) && (_IS_HW_SPI(MOSI) || _IS_HW_SPI(MISO) || _IS_HW_SPI(SCK))
-      #error "DUE hardware SPI is required but is incompatible with TMC2130 software SPI. Either disable TMC_USE_SW_SPI or use separate pins for the two SPIs."
-    #endif
-  #elif ENABLED(SOFTWARE_SPI)
+  #define _IS_HW_SPI(P) (defined(TMC_SPI_##P) && (TMC_SPI_##P == SD_MOSI_PIN || TMC_SPI_##P == SD_MISO_PIN || TMC_SPI_##P == SD_SCK_PIN))
+  #if DISABLED(SOFTWARE_SPI) && ENABLED(TMC_USE_SW_SPI) && (_IS_HW_SPI(MOSI) || _IS_HW_SPI(MISO) || _IS_HW_SPI(SCK))
+    #error "DUE hardware SPI is required but is incompatible with TMC2130 software SPI. Either disable TMC_USE_SW_SPI or use separate pins for the two SPIs."
+  #endif
+  #if ENABLED(SOFTWARE_SPI) && DISABLED(TMC_USE_SW_SPI)
    #error "DUE software SPI is required but is incompatible with TMC2130 hardware SPI. Enable TMC_USE_SW_SPI to fix."
  #endif
+  #undef _IS_HW_SPI
 #endif

 #if ENABLED(FAST_PWM_FAN) || SPINDLE_LASER_FREQUENCY
@@ -24,7 +24,7 @@
 /**
 * Define SPI Pins: SCK, MISO, MOSI, SS
 *
- * Available chip select pins for HW SPI are 4 10 52 77
+ * Available chip select pins for HW SPI are 4 10 52 77 87
 */
 #if SDSS == 4 || SDSS == 10 || SDSS == 52 || SDSS == 77 || SDSS == 87
  #if SDSS == 4
@@ -66,7 +66,7 @@

 #include <U8glib-HAL.h>

-#if ENABLED(FYSETC_MINI_12864)
+#if U8G_SPI_USE_MODE_3
  #define SPISEND_SW_DUE u8g_spiSend_sw_DUE_mode_3
 #else
  #define SPISEND_SW_DUE u8g_spiSend_sw_DUE_mode_0
@@ -96,15 +96,15 @@ uint8_t u8g_com_HAL_DUE_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void
      break;

    case U8G_COM_MSG_CHIP_SELECT:
-      #if ENABLED(FYSETC_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_DUE(u8g, U8G_PI_SCK, 1);  //set SCK to mode 3 idle state before CS goes active
+      #if U8G_SPI_USE_MODE_3                        // 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_DUE(u8g, U8G_PI_SCK, 1);   // Set SCK to mode 3 idle state before CS goes active
          u8g_SetPILevel_DUE(u8g, U8G_PI_CS, LOW);
        }
        else {
          u8g_SetPILevel_DUE(u8g, U8G_PI_CS, HIGH);
-          u8g_SetPILevel_DUE(u8g, U8G_PI_SCK, 0); //set SCK to mode 0 idle state after CS goes inactive
+          u8g_SetPILevel_DUE(u8g, U8G_PI_SCK, 0);   // Set SCK to mode 0 idle state after CS goes inactive
        }
      #else
        u8g_SetPILevel_DUE(u8g, U8G_PI_CS, !arg_val);
@@ -11,7 +11,7 @@ if pioutil.is_pio_build():

    if current_OS == 'Windows':

-        Import("env")
+        env = pioutil.env

        # Use bossac.exe on Windows
        env.Replace(
@@ -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

@@ -59,6 +59,7 @@ void setup_endstop_interrupts() {
  TERN_(USE_Z4_MAX,      _ATTACH(Z4_MAX_PIN));
  TERN_(USE_Z4_MIN,      _ATTACH(Z4_MIN_PIN));
  TERN_(USE_Z_MIN_PROBE, _ATTACH(Z_MIN_PROBE_PIN));
+  TERN_(USE_CALIBRATION, _ATTACH(CALIBRATION_PIN));
  TERN_(USE_I_MAX,       _ATTACH(I_MAX_PIN));
  TERN_(USE_I_MIN,       _ATTACH(I_MIN_PIN));
  TERN_(USE_J_MAX,       _ATTACH(J_MAX_PIN));
@@ -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
 //
@@ -232,7 +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
@@ -31,8 +31,8 @@

 struct MarlinSerial : public Usart {
  MarlinSerial(
-    struct usart_config_t *usart_device, 
-    gpio_pin_t tx_pin, 
+    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,
@@ -1,6 +1,6 @@
 /**
 * 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 
+ * it is used to configure the arduino core (and ddl) automatically according
 * to the settings in Configuration.h and Configuration_adv.h.
 */
 #pragma once
@@ -44,7 +44,7 @@
 #define DISABLE_SERIAL_GLOBALS 1

 // increase the size of the Usart buffers (both RX and TX)
-// NOTE: 
+// 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
@@ -64,7 +64,12 @@
 // redirect printf to host serial
 #define REDIRECT_PRINTF_TO_SERIAL 1

-// FIXME override F_CPU to PCLK1, as marlin freaks out otherwise
-#define F_CPU (SYSTEM_CLOCK_FREQUENCIES.pclk1)
+// 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_
@@ -101,12 +101,14 @@ void setup_endstop_interrupts() {

  SETUP(Z_MIN_PROBE);

+  SETUP(CALIBRATION);
+
  #undef SETUP
 }

 // Ensure 1 - 10 IRQs are registered
 // Disable some endstops if you encounter this error
-#define ENDSTOPS_INTERRUPTS_COUNT COUNT_ENABLED(USE_X_MAX, USE_X_MIN, USE_X2_MAX, USE_X2_MIN, USE_Y_MAX, USE_Y_MIN, USE_Y2_MAX, USE_Y2_MIN, USE_Z_MAX, USE_Z_MIN, USE_Z2_MAX, USE_Z2_MIN, USE_Z3_MAX, USE_Z3_MIN, USE_Z4_MAX, USE_Z4_MIN, USE_Z_MIN_PROBE)
+#define ENDSTOPS_INTERRUPTS_COUNT COUNT_ENABLED(USE_X_MAX, USE_X_MIN, USE_X2_MAX, USE_X2_MIN, USE_Y_MAX, USE_Y_MIN, USE_Y2_MAX, USE_Y2_MIN, USE_Z_MAX, USE_Z_MIN, USE_Z2_MAX, USE_Z2_MIN, USE_Z3_MAX, USE_Z3_MIN, USE_Z4_MAX, USE_Z4_MIN, USE_Z_MIN_PROBE, USE_CALIBRATION)
 #if ENDSTOPS_INTERRUPTS_COUNT > 10
  #error "Too many endstop interrupts! HC32F460 only supports 10 endstop interrupts."
 #elif ENDSTOPS_INTERRUPTS_COUNT == 0
@@ -30,7 +30,7 @@
 #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 
+  // 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
@@ -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
@@ -82,7 +82,7 @@ static inline uint8_t swSpiTransfer_mode_3(uint8_t b, const uint8_t spi_speed, c
 }

 static void u8g_sw_spi_shift_out(uint8_t val) {
-  #if ANY(FYSETC_MINI_12864, MKS_MINI_12864)
+  #if U8G_SPI_USE_MODE_3
    swSpiTransfer_mode_3(val, SPI_speed);
  #else
    swSpiTransfer_mode_0(val, SPI_speed);
@@ -116,15 +116,15 @@ uint8_t u8g_com_HAL_HC32_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, voi
      break;

    case U8G_COM_MSG_CHIP_SELECT:
-      #if ANY(FYSETC_MINI_12864, MKS_MINI_12864) // This 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
-          WRITE(DOGLCD_SCK, HIGH);               // Set SCK to mode 3 idle state before CS goes active
+      #if U8G_SPI_USE_MODE_3        // This 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
+          WRITE(DOGLCD_SCK, HIGH);  // Set SCK to mode 3 idle state before CS goes active
          WRITE(DOGLCD_CS, LOW);
        }
        else {
          WRITE(DOGLCD_CS, HIGH);
-          WRITE(DOGLCD_SCK, LOW);  // Set SCK to mode 0 idle state after CS goes inactive
+          WRITE(DOGLCD_SCK, LOW);   // Set SCK to mode 0 idle state after CS goes inactive
        }
      #else
        WRITE(DOGLCD_CS, !arg_val);
@@ -28,12 +28,6 @@
                        // spiBeginTransaction.
 #endif

-// Onboard SD
-//#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 SD
 #ifndef SD_SCK_PIN
  #define SD_SCK_PIN        50
@@ -100,7 +100,7 @@ extern DefaultSerial1 USBSerial;
  #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
+  #if ANY(HAS_DGUS_LCD, EXTENSIBLE_UI)
    #define LCD_SERIAL_TX_BUFFER_FREE() LCD_SERIAL.available()
  #endif
 #endif
@@ -159,7 +159,7 @@ constexpr pin_t GET_PIN_MAP_PIN(const int16_t 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,
+#define HAL_SENSITIVE_PINS P0_06, P0_07, P0_08, P0_09

 // ------------------------
 // Defines
@@ -146,6 +146,12 @@ void setup_endstop_interrupts() {
    #endif
    _ATTACH(Z_MIN_PROBE_PIN);
  #endif
+  #if USE_CALIBRATION
+    #if !LPC1768_PIN_INTERRUPT_M(CALIBRATION_PIN)
+      #error "CALIBRATION_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(CALIBRATION_PIN);
+  #endif
  #if USE_I_MAX
    #if !LPC1768_PIN_INTERRUPT_M(I_MAX_PIN)
      #error "I_MAX_PIN is not INTERRUPT-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
@@ -26,8 +26,10 @@

 void MarlinHAL::set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size/*=255*/, const bool invert/*=false*/) {
  if (!LPC176x::pin_is_valid(pin)) return;
-  if (LPC176x::pwm_attach_pin(pin))
-    LPC176x::pwm_write_ratio(pin, invert ? 1.0f - (float)v / v_size : (float)v / v_size);  // map 1-254 onto PWM range
+  if (LPC176x::pwm_attach_pin(pin)) {
+    const uint32_t duty = map(invert ? v_size - v : v, 0, v_size, 0, LPC176x::pwm_get_period(pin));
+    LPC176x::pwm_write(pin, duty);
+  }
 }

 void MarlinHAL::set_pwm_frequency(const pin_t pin, const uint16_t f_desired) {
@@ -66,7 +66,7 @@
 #define _WRITE(IO,V)          WRITE_PIN(IO,V)

 /// toggle a pin
-#define _TOGGLE(IO)           _WRITE(IO, !READ(IO))
+#define _TOGGLE(IO)           LPC176x::gpio_toggle(IO)

 /// set pin as input
 #define _SET_INPUT(IO)        SET_DIR_INPUT(IO)
@@ -28,12 +28,13 @@
                        // 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 */
+// Onboard SD
+//#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 SD
 #ifndef SD_SCK_PIN
  #define SD_SCK_PIN        P0_15
 #endif
@@ -132,7 +132,7 @@ uint8_t swSpiTransfer_mode_3(uint8_t b, const uint8_t spi_speed, const pin_t sck
 static uint8_t SPI_speed = 0;

 static void u8g_sw_spi_shift_out(uint8_t dataPin, uint8_t clockPin, uint8_t val) {
-  #if ANY(FYSETC_MINI_12864, MKS_MINI_12864)
+  #if U8G_SPI_USE_MODE_3
    swSpiTransfer_mode_3(val, SPI_speed, clockPin, -1, dataPin);
  #else
    swSpiTransfer_mode_0(val, SPI_speed, clockPin, -1, dataPin);
@@ -160,15 +160,15 @@ uint8_t u8g_com_HAL_LPC1768_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t 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
+      #if U8G_SPI_USE_MODE_3                    // 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
+          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);
@@ -13,9 +13,9 @@ if pioutil.is_pio_build():
    target_drive = "REARM"

    import platform
-
    current_OS = platform.system()
-    Import("env")
+
+    env = pioutil.env

    def print_error(e):
        print('\nUnable to find destination disk (%s)\n' \
@@ -131,7 +131,7 @@ static uint8_t swSpiInit(const uint8_t spi_speed, const uint8_t clk_pin, const u
 }

 static void u8g_sw_spi_shift_out(uint8_t dataPin, uint8_t clockPin, uint8_t val) {
-  #if ANY(FYSETC_MINI_12864, MKS_MINI_12864)
+  #if U8G_SPI_USE_MODE_3
    swSpiTransfer_mode_3(val, SPI_speed, clockPin, -1, dataPin);
  #else
    swSpiTransfer_mode_0(val, SPI_speed, clockPin, -1, dataPin);
@@ -159,15 +159,15 @@ uint8_t u8g_com_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_pt
      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
+      #if U8G_SPI_USE_MODE_3                    // 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
+          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);
@@ -83,6 +83,7 @@
 #define MATCH_Z4_MAX_EILINE(P) TERN0(USE_Z4_MAX, DEFER4(MATCH_EILINE)(P, Z4_MAX_PIN))
 #define MATCH_Z4_MIN_EILINE(P) TERN0(USE_Z4_MIN, DEFER4(MATCH_EILINE)(P, Z4_MIN_PIN))
 #define MATCH_Z_MIN_PROBE_EILINE(P) TERN0(USE_Z_MIN_PROBE, DEFER4(MATCH_EILINE)(P, Z_MIN_PROBE_PIN))
+#define MATCH_CALIBRATION_EILINE(P) TERN0(USE_CALIBRATION, DEFER4(MATCH_EILINE)(P, CALIBRATION_PIN))

 #define AVAILABLE_EILINE(P) ( PIN_TO_EILINE(P) != -1    \
  && !MATCH_X_MAX_EILINE(P) && !MATCH_X_MIN_EILINE(P)   \
@@ -99,7 +100,8 @@
  && !MATCH_Z2_MAX_EILINE(P) && !MATCH_Z2_MIN_EILINE(P) \
  && !MATCH_Z3_MAX_EILINE(P) && !MATCH_Z3_MIN_EILINE(P) \
  && !MATCH_Z4_MAX_EILINE(P) && !MATCH_Z4_MIN_EILINE(P) \
-  && !MATCH_Z_MIN_PROBE_EILINE(P) )
+  && !MATCH_Z_MIN_PROBE_EILINE(P)                       \
+  && !MATCH_CALIBRATION_EILINE(P) )

 // One ISR for all EXT-Interrupts
 void endstop_ISR() { endstops.update(); }
@@ -208,6 +210,12 @@ void setup_endstop_interrupts() {
    #endif
    _ATTACH(Z_MIN_PROBE_PIN);
  #endif
+  #if USE_CALIBRATION
+    #if !AVAILABLE_EILINE(CALIBRATION_PIN)
+      #error "CALIBRATION_PIN has no EXTINT line available. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(CALIBRATION_PIN);
+  #endif
  #if USE_I_MAX
    #if !AVAILABLE_EILINE(I_MAX_PIN)
      #error "I_MAX_PIN has no EXTINT line available. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
@@ -82,6 +82,7 @@
 #define MATCH_Z4_MAX_EILINE(P) TERN0(USE_Z4_MAX, DEFER4(MATCH_EILINE)(P, Z4_MAX_PIN))
 #define MATCH_Z4_MIN_EILINE(P) TERN0(USE_Z4_MIN, DEFER4(MATCH_EILINE)(P, Z4_MIN_PIN))
 #define MATCH_Z_MIN_PROBE_EILINE(P) TERN0(USE_Z_MIN_PROBE, DEFER4(MATCH_EILINE)(P, Z_MIN_PROBE_PIN))
+#define MATCH_CALIBRATION_EILINE(P) TERN0(USE_CALIBRATION, DEFER4(MATCH_EILINE)(P, CALIBRATION_PIN))

 #define AVAILABLE_EILINE(P) ( PIN_TO_EILINE(P) != -1    \
  && !MATCH_X_MAX_EILINE(P) && !MATCH_X_MIN_EILINE(P)   \
@@ -98,7 +99,8 @@
  && !MATCH_Z2_MAX_EILINE(P) && !MATCH_Z2_MIN_EILINE(P) \
  && !MATCH_Z3_MAX_EILINE(P) && !MATCH_Z3_MIN_EILINE(P) \
  && !MATCH_Z4_MAX_EILINE(P) && !MATCH_Z4_MIN_EILINE(P) \
-  && !MATCH_Z_MIN_PROBE_EILINE(P) )
+  && !MATCH_Z_MIN_PROBE_EILINE(P)                       \
+  && !MATCH_CALIBRATION_EILINE(P) )

 // One ISR for all EXT-Interrupts
 void endstop_ISR() { endstops.update(); }
@@ -183,6 +185,12 @@ void setup_endstop_interrupts() {
    #endif
    _ATTACH(Z_MIN_PROBE_PIN);
  #endif
+  #if USE_CALIBRATION
+    #if !AVAILABLE_EILINE(CALIBRATION_PIN)
+      #error "CALIBRATION_PIN has no EXTINT line available. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
+    #endif
+    _ATTACH(CALIBRATION_PIN);
+  #endif
  #if USE_I_MAX
    #if !AVAILABLE_EILINE(I_MAX_PIN)
      #error "I_MAX_PIN has no EXTINT line available. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
@@ -112,11 +112,19 @@
  #else
    #error "LCD_SERIAL_PORT must be from 1 to 9, or -1 for Native USB."
  #endif
-  #if HAS_DGUS_LCD
+  #if ANY(HAS_DGUS_LCD, EXTENSIBLE_UI)
    #define LCD_SERIAL_TX_BUFFER_FREE() LCD_SERIAL.availableForWrite()
  #endif
 #endif

+#ifdef RS485_SERIAL_PORT
+  #if WITHIN(RS485_SERIAL_PORT, 1, 9)
+    #define RS485_SERIAL MSERIAL(RS485_SERIAL_PORT)
+  #else
+    #error "RS485_SERIAL_PORT must be from 1 to 9."
+  #endif
+#endif
+
 /**
 * TODO: review this to return 1 for pins that are not analog input
 */
@@ -37,7 +37,7 @@ static SPISettings spiConfig;
 // Public functions
 // ------------------------

-#if ENABLED(SOFTWARE_SPI)
+#if ANY(SOFTWARE_SPI, FORCE_SOFT_SPI)

  // ------------------------
  // Software SPI
@@ -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;
@@ -0,0 +1,136 @@
+/**
+ * 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 / Ryan Power
+ *
+ * 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 HAL_STM32
+
+#include "../../../inc/MarlinConfig.h"
+
+#if ALL(HAS_MARLINUI_U8GLIB, FORCE_SOFT_SPI)
+
+#include <U8glib-HAL.h>
+#include "../../shared/HAL_SPI.h"
+
+#define nop asm volatile ("\tnop\n")
+
+static inline uint8_t swSpiTransfer_mode_0(uint8_t b) {
+  for (uint8_t i = 0; i < 8; ++i) {
+    const uint8_t state = (b & 0x80) ? HIGH : LOW;
+    WRITE(DOGLCD_SCK, HIGH);
+    WRITE(DOGLCD_MOSI, state);
+    b <<= 1;
+    WRITE(DOGLCD_SCK, LOW);
+  }
+  return b;
+}
+
+static inline uint8_t swSpiTransfer_mode_3(uint8_t b) {
+  for (uint8_t i = 0; i < 8; ++i) {
+    const uint8_t state = (b & 0x80) ? HIGH : LOW;
+    WRITE(DOGLCD_SCK, LOW);
+    WRITE(DOGLCD_MOSI, state);
+    b <<= 1;
+    WRITE(DOGLCD_SCK, HIGH);
+  }
+  return b;
+}
+
+static void u8g_sw_spi_shift_out(uint8_t val) {
+  #if U8G_SPI_USE_MODE_3
+    swSpiTransfer_mode_3(val);
+  #else
+    swSpiTransfer_mode_0(val);
+  #endif
+}
+
+static void swSpiInit() {
+  #if PIN_EXISTS(LCD_RESET)
+    SET_OUTPUT(LCD_RESET_PIN);
+  #endif
+  SET_OUTPUT(DOGLCD_A0);
+  OUT_WRITE(DOGLCD_SCK, LOW);
+  OUT_WRITE(DOGLCD_MOSI, LOW);
+  OUT_WRITE(DOGLCD_CS, HIGH);
+}
+
+uint8_t u8g_com_HAL_STM32_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
+  switch (msg) {
+    case U8G_COM_MSG_INIT:
+      swSpiInit();
+      break;
+
+    case U8G_COM_MSG_STOP:
+      break;
+
+    case U8G_COM_MSG_RESET:
+      #if PIN_EXISTS(LCD_RESET)
+        WRITE(LCD_RESET_PIN, arg_val);
+      #endif
+      break;
+
+    case U8G_COM_MSG_CHIP_SELECT:
+      #if U8G_SPI_USE_MODE_3        // This 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
+          WRITE(DOGLCD_SCK, HIGH);  // Set SCK to mode 3 idle state before CS goes active
+          WRITE(DOGLCD_CS, LOW);
+          nop; // hold SCK high for a few ns
+          nop;
+         }
+        else {
+          WRITE(DOGLCD_CS, HIGH);
+          WRITE(DOGLCD_SCK, LOW);   // Set SCK to mode 0 idle state after CS goes inactive
+        }
+      #else
+        WRITE(DOGLCD_CS, !arg_val);
+      #endif
+      break;
+
+    case U8G_COM_MSG_WRITE_BYTE:
+      u8g_sw_spi_shift_out(arg_val);
+      break;
+
+    case U8G_COM_MSG_WRITE_SEQ: {
+      uint8_t *ptr = (uint8_t *)arg_ptr;
+      while (arg_val > 0) {
+        u8g_sw_spi_shift_out(*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_shift_out(u8g_pgm_read(ptr));
+        ptr++;
+        arg_val--;
+      }
+    } break;
+
+    case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
+      WRITE(DOGLCD_A0, arg_val);
+      break;
+  }
+  return 1;
+}
+
+#endif // HAS_MARLINUI_U8GLIB && FORCE_SOFT_SPI
+#endif // HAL_STM32
@@ -45,6 +45,7 @@ void setup_endstop_interrupts() {
  TERN_(USE_Z4_MAX,      _ATTACH(Z4_MAX_PIN));
  TERN_(USE_Z4_MIN,      _ATTACH(Z4_MIN_PIN));
  TERN_(USE_Z_MIN_PROBE, _ATTACH(Z_MIN_PROBE_PIN));
+  TERN_(USE_CALIBRATION, _ATTACH(CALIBRATION_PIN));
  TERN_(USE_I_MAX,       _ATTACH(I_MAX_PIN));
  TERN_(USE_I_MIN,       _ATTACH(I_MIN_PIN));
  TERN_(USE_J_MAX,       _ATTACH(J_MAX_PIN));
@@ -30,6 +30,3 @@
  #undef F_CPU
  #define F_CPU BOARD_F_CPU
 #endif
-
-// The Sensitive Pins array is not optimizable
-#define RUNTIME_ONLY_ANALOG_TO_DIGITAL
@@ -25,8 +25,8 @@
 * STM32 LCD-specific defines
 */

-uint8_t u8g_com_std_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);         // See U8glib-HAL
-uint8_t u8g_com_stm32duino_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);  // See U8glib-HAL
+uint8_t u8g_com_HAL_STM32_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);   // u8g_com_stm32duino_swspi.cpp
+#define U8G_COM_HAL_SW_SPI_FN u8g_com_HAL_STM32_sw_spi_fn

-#define U8G_COM_HAL_SW_SPI_FN u8g_com_std_sw_spi_fn
+uint8_t u8g_com_stm32duino_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);  // See U8glib-HAL
 #define U8G_COM_HAL_HW_SPI_FN u8g_com_stm32duino_hw_spi_fn
@@ -138,11 +138,22 @@
    #define LCD_SERIAL MSERIAL(1) // dummy port
    static_assert(false, "LCD_SERIAL_PORT must be from 1 to " STRINGIFY(NUM_UARTS) ". You can also use -1 if the board supports Native USB.")
  #endif
-  #if HAS_DGUS_LCD
+  #if ANY(HAS_DGUS_LCD, EXTENSIBLE_UI)
    #define LCD_SERIAL_TX_BUFFER_FREE() LCD_SERIAL.availableForWrite()
  #endif
 #endif

+#ifdef RS485_SERIAL_PORT
+  #if RS485_SERIAL_PORT == -1
+    #define RS485_SERIAL UsbSerial
+  #elif WITHIN(RS485_SERIAL_PORT, 1, NUM_UARTS)
+    #define RS485_SERIAL MSERIAL(RS485_SERIAL_PORT)
+  #else
+    #define RS485_SERIAL MSERIAL(1) // dummy port
+    static_assert(false, "RS485_SERIAL_PORT must be from 1 to " STRINGIFY(NUM_UARTS) ".")
+  #endif
+#endif
+
 /**
 * TODO: review this to return 1 for pins that are not analog input
 */
@@ -1,56 +0,0 @@
-from __future__ import print_function
-import sys
-
-#dynamic build flags for generic compile options
-if __name__ == "__main__":
-  args = " ".join([ "-std=gnu++14",
-                    "-Os",
-                    "-mcpu=cortex-m3",
-                    "-mthumb",
-
-                    "-fsigned-char",
-                    "-fno-move-loop-invariants",
-                    "-fno-strict-aliasing",
-                    "-fsingle-precision-constant",
-
-                    "--specs=nano.specs",
-                    "--specs=nosys.specs",
-
-                    "-IMarlin/src/HAL/STM32F1",
-
-                    "-MMD",
-                    "-MP",
-                    "-DTARGET_STM32F1"
-                  ])
-
-  for i in range(1, len(sys.argv)):
-    args += " " + sys.argv[i]
-
-  print(args)
-
-# extra script for linker options
-else:
-  import pioutil
-  if pioutil.is_pio_build():
-    from SCons.Script import DefaultEnvironment
-    env = DefaultEnvironment()
-    env.Append(
-      ARFLAGS=["rcs"],
-
-      ASFLAGS=["-x", "assembler-with-cpp"],
-
-      CXXFLAGS=[
-        "-fabi-version=0",
-        "-fno-use-cxa-atexit",
-        "-fno-threadsafe-statics"
-      ],
-      LINKFLAGS=[
-        "-Os",
-        "-mcpu=cortex-m3",
-        "-ffreestanding",
-        "-mthumb",
-        "--specs=nano.specs",
-        "--specs=nosys.specs",
-        "-u_printf_float",
-      ],
-    )
@@ -89,7 +89,7 @@ static inline uint8_t swSpiTransfer_mode_3(uint8_t b, const uint8_t spi_speed, c
 }

 static void u8g_sw_spi_shift_out(uint8_t val) {
-  #if ENABLED(FYSETC_MINI_12864)
+  #if U8G_SPI_USE_MODE_3
    swSpiTransfer_mode_3(val, SPI_speed);
  #else
    swSpiTransfer_mode_0(val, SPI_speed);
@@ -123,15 +123,15 @@ uint8_t u8g_com_HAL_STM32F1_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val,
      break;

    case U8G_COM_MSG_CHIP_SELECT:
-      #if ENABLED(FYSETC_MINI_12864) // This 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
-          WRITE(DOGLCD_SCK, HIGH);   // Set SCK to mode 3 idle state before CS goes active
+      #if U8G_SPI_USE_MODE_3        // This 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
+          WRITE(DOGLCD_SCK, HIGH);  // Set SCK to mode 3 idle state before CS goes active
          WRITE(DOGLCD_CS, LOW);
        }
        else {
          WRITE(DOGLCD_CS, HIGH);
-          WRITE(DOGLCD_SCK, LOW);  // Set SCK to mode 0 idle state after CS goes inactive
+          WRITE(DOGLCD_SCK, LOW);   // Set SCK to mode 0 idle state after CS goes inactive
        }
      #else
        WRITE(DOGLCD_CS, !arg_val);
@@ -70,6 +70,7 @@ void setup_endstop_interrupts() {
  TERN_(USE_Z4_MAX,      _ATTACH(Z4_MAX_PIN));
  TERN_(USE_Z4_MIN,      _ATTACH(Z4_MIN_PIN));
  TERN_(USE_Z_MIN_PROBE, _ATTACH(Z_MIN_PROBE_PIN));
+  TERN_(USE_CALIBRATION, _ATTACH(CALIBRATION_PIN));
  TERN_(USE_I_MAX,       _ATTACH(I_MAX_PIN));
  TERN_(USE_I_MIN,       _ATTACH(I_MIN_PIN));
  TERN_(USE_J_MAX,       _ATTACH(J_MAX_PIN));
@@ -25,7 +25,7 @@
 * STM32F1 (Maple) LCD-specific defines
 */

-uint8_t u8g_com_HAL_STM32F1_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+uint8_t u8g_com_HAL_STM32F1_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr); // u8g_com_stm32duino_swspi.cpp
 uint8_t u8g_com_stm32duino_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);  // See U8glib-HAL

 #define U8G_COM_HAL_SW_SPI_FN     u8g_com_HAL_STM32F1_sw_spi_fn
@@ -64,6 +64,7 @@ void setup_endstop_interrupts() {
  TERN_(USE_Z4_MAX,      _ATTACH(Z4_MAX_PIN));
  TERN_(USE_Z4_MIN,      _ATTACH(Z4_MIN_PIN));
  TERN_(USE_Z_MIN_PROBE, _ATTACH(Z_MIN_PROBE_PIN));
+  TERN_(USE_CALIBRATION, _ATTACH(CALIBRATION_PIN));
  TERN_(USE_I_MAX,       _ATTACH(I_MAX_PIN));
  TERN_(USE_I_MIN,       _ATTACH(I_MIN_PIN));
  TERN_(USE_J_MAX,       _ATTACH(J_MAX_PIN));
@@ -63,6 +63,7 @@ void setup_endstop_interrupts() {
  TERN_(USE_Z4_MAX,      _ATTACH(Z4_MAX_PIN));
  TERN_(USE_Z4_MIN,      _ATTACH(Z4_MIN_PIN));
  TERN_(USE_Z_MIN_PROBE, _ATTACH(Z_MIN_PROBE_PIN));
+  TERN_(USE_CALIBRATION, _ATTACH(CALIBRATION_PIN));
  TERN_(USE_I_MAX,       _ATTACH(I_MAX_PIN));
  TERN_(USE_I_MIN,       _ATTACH(I_MIN_PIN));
  TERN_(USE_J_MAX,       _ATTACH(J_MAX_PIN));
@@ -63,6 +63,7 @@ void setup_endstop_interrupts() {
  TERN_(USE_Z4_MAX,      _ATTACH(Z4_MAX_PIN));
  TERN_(USE_Z4_MIN,      _ATTACH(Z4_MIN_PIN));
  TERN_(USE_Z_MIN_PROBE, _ATTACH(Z_MIN_PROBE_PIN));
+  TERN_(USE_CALIBRATION, _ATTACH(CALIBRATION_PIN));
  TERN_(USE_I_MAX,       _ATTACH(I_MAX_PIN));
  TERN_(USE_I_MIN,       _ATTACH(I_MIN_PIN));
  TERN_(USE_J_MAX,       _ATTACH(J_MAX_PIN));
@@ -36,13 +36,13 @@
 typedef uint32_t hal_timer_t;
 #define HAL_TIMER_TYPE_MAX 0xFFFFFFFE

-#define GPT_TIMER_RATE F_BUS_ACTUAL   // 150MHz
+#define GPT_TIMER_RATE (F_CPU / 4) // 150MHz (Can't use F_BUS_ACTUAL because it's extern volatile)

 #define GPT1_TIMER_PRESCALE 2
 #define GPT2_TIMER_PRESCALE 10

-#define GPT1_TIMER_RATE (GPT_TIMER_RATE / GPT1_TIMER_PRESCALE) // 75MHz
-#define GPT2_TIMER_RATE (GPT_TIMER_RATE / GPT2_TIMER_PRESCALE) // 15MHz
+#define GPT1_TIMER_RATE (GPT_TIMER_RATE / GPT1_TIMER_PRESCALE) // 150MHz /  2 = 75MHz
+#define GPT2_TIMER_RATE (GPT_TIMER_RATE / GPT2_TIMER_PRESCALE) // 150MHz / 10 = 15MHz

 #ifndef MF_TIMER_STEP
  #define MF_TIMER_STEP         0  // Timer Index for Stepper
@@ -57,7 +57,8 @@ typedef uint32_t hal_timer_t;
 #define TEMP_TIMER_RATE        1000000
 #define TEMP_TIMER_FREQUENCY   1000

-#define STEPPER_TIMER_RATE     GPT1_TIMER_RATE
+#define HAL_TIMER_RATE         GPT1_TIMER_RATE
+#define STEPPER_TIMER_RATE     HAL_TIMER_RATE
 #define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000)
 #define STEPPER_TIMER_PRESCALE ((GPT_TIMER_RATE / 1000000) / STEPPER_TIMER_TICKS_PER_US)

@@ -261,12 +261,16 @@
  #include "tests/marlin_tests.h"
 #endif

+#if HAS_RS485_SERIAL
+  #include "feature/rs485.h"
+#endif
+
 PGMSTR(M112_KILL_STR, "M112 Shutdown");

-MarlinState marlin_state = MF_INITIALIZING;
+MarlinState marlin_state = MarlinState::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
@@ -308,23 +312,12 @@ bool wait_for_heatup = true;
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wnarrowing"

-#ifndef RUNTIME_ONLY_ANALOG_TO_DIGITAL
-  template <pin_t ...D>
-  constexpr pin_t OnlyPins<_SP_END, D...>::table[sizeof...(D)];
-#endif
-
 bool pin_is_protected(const pin_t pin) {
-  #ifdef RUNTIME_ONLY_ANALOG_TO_DIGITAL
-    static const pin_t sensitive_pins[] PROGMEM = { SENSITIVE_PINS };
-    const size_t pincount = COUNT(sensitive_pins);
-  #else
-    static constexpr size_t pincount = OnlyPins<SENSITIVE_PINS>::size;
-    static const pin_t (&sensitive_pins)[pincount] PROGMEM = OnlyPins<SENSITIVE_PINS>::table;
-  #endif
-  for (uint8_t i = 0; i < pincount; ++i) {
-    const pin_t * const pptr = &sensitive_pins[i];
-    if (pin == (sizeof(pin_t) == 2 ? (pin_t)pgm_read_word(pptr) : (pin_t)pgm_read_byte(pptr))) return true;
-  }
+  #define pgm_read_pin(P) (sizeof(pin_t) == 2 ? (pin_t)pgm_read_word(P) : (pin_t)pgm_read_byte(P))
+  for (uint8_t i = 0; i < COUNT(sensitive_dio); ++i)
+    if (pin == pgm_read_pin(&sensitive_dio[i])) return true;
+  for (uint8_t i = 0; i < COUNT(sensitive_aio); ++i)
+    if (pin == analogInputToDigitalPin(pgm_read_pin(&sensitive_dio[i]))) return true;
  return false;
 }

@@ -388,8 +381,8 @@ void startOrResumeJob() {
  }

  inline void finishSDPrinting() {
-    if (queue.enqueue_one(F("M1001"))) {  // Keep trying until it gets queued
-      marlin_state = MF_RUNNING;          // Signal to stop trying
+    if (queue.enqueue_one(F("M1001"))) {      // Keep trying until it gets queued
+      marlin_state = MarlinState::MF_RUNNING; // Signal to stop trying
      TERN_(PASSWORD_AFTER_SD_PRINT_END, password.lock_machine());
      TERN_(DGUS_LCD_UI_MKS, screen.sdPrintingFinished());
    }
@@ -784,7 +777,7 @@ void idle(const bool no_stepper_sleep/*=false*/) {
  TERN_(MAX7219_DEBUG, max7219.idle_tasks());

  // Return if setup() isn't completed
-  if (marlin_state == MF_INITIALIZING) goto IDLE_DONE;
+  if (marlin_state == MarlinState::MF_INITIALIZING) goto IDLE_DONE;

  // TODO: Still causing errors
  TERN_(TOOL_SENSOR, (void)check_tool_sensor_stats(active_extruder, true));
@@ -970,7 +963,7 @@ void stop() {
    SERIAL_ERROR_MSG(STR_ERR_STOPPED);
    LCD_MESSAGE(MSG_STOPPED);
    safe_delay(350);       // allow enough time for messages to get out before stopping
-    marlin_state = MF_STOPPED;
+    marlin_state = MarlinState::MF_STOPPED;
  }
 }

@@ -1284,7 +1277,7 @@ void setup() {

  // Identify myself as Marlin x.x.x
  SERIAL_ECHOLNPGM("Marlin " SHORT_BUILD_VERSION);
-  #if defined(STRING_DISTRIBUTION_DATE) && defined(STRING_CONFIG_H_AUTHOR)
+  #ifdef STRING_DISTRIBUTION_DATE
    SERIAL_ECHO_MSG(
      " Last Updated: " STRING_DISTRIBUTION_DATE
      " | Author: " STRING_CONFIG_H_AUTHOR
@@ -1330,18 +1323,23 @@ void setup() {
    #endif
  #endif

-  #if ALL(HAS_MEDIA, SDCARD_EEPROM_EMULATION)
+  #if HAS_MEDIA && ANY(SDCARD_EEPROM_EMULATION, POWER_LOSS_RECOVERY)
    SETUP_RUN(card.mount());          // Mount media with settings before first_load
  #endif

-  SETUP_RUN(settings.first_load());   // Load data from EEPROM if available (or use defaults)
-                                      // This also updates variables in the planner, elsewhere
+  // Prepare some LCDs to display early
+  #if HAS_EARLY_LCD_SETTINGS
+    SETUP_RUN(settings.load_lcd_state());
+  #endif

  #if ALL(HAS_WIRED_LCD, SHOW_BOOTSCREEN)
    SETUP_RUN(ui.show_bootscreen());
    const millis_t bootscreen_ms = millis();
  #endif

+  SETUP_RUN(settings.first_load());   // Load data from EEPROM if available (or use defaults)
+                                      // This also updates variables in the planner, elsewhere
+
  #if ENABLED(PROBE_TARE)
    SETUP_RUN(probe.tare_init());
  #endif
@@ -1648,11 +1646,15 @@ void setup() {
    SETUP_RUN(bdl.init(I2C_BD_SDA_PIN, I2C_BD_SCL_PIN, I2C_BD_DELAY));
  #endif

+  #if HAS_RS485_SERIAL
+    SETUP_RUN(rs485_init());
+  #endif
+
  #if ENABLED(FT_MOTION)
    SETUP_RUN(ftMotion.init());
  #endif

-  marlin_state = MF_RUNNING;
+  marlin_state = MarlinState::MF_RUNNING;

  #ifdef STARTUP_TUNE
    // Play a short startup tune before continuing.
@@ -1684,7 +1686,7 @@ void loop() {

    #if HAS_MEDIA
      if (card.flag.abort_sd_printing) abortSDPrinting();
-      if (marlin_state == MF_SD_COMPLETE) finishSDPrinting();
+      if (marlin_state == MarlinState::MF_SD_COMPLETE) finishSDPrinting();
    #endif

    queue.advance();
@@ -42,7 +42,7 @@ void kill(FSTR_P const lcd_error=nullptr, FSTR_P const lcd_component=nullptr, co
 void minkill(const bool steppers_off=false);

 // Global State of the firmware
-enum MarlinState : uint8_t {
+enum class MarlinState : uint8_t {
  MF_INITIALIZING = 0,
  MF_STOPPED,
  MF_KILLED,
@@ -53,8 +53,8 @@ enum MarlinState : uint8_t {
 };

 extern MarlinState marlin_state;
-inline bool IsRunning() { return marlin_state >= MF_RUNNING; }
-inline bool IsStopped() { return marlin_state == MF_STOPPED; }
+inline bool IsRunning() { return marlin_state >= MarlinState::MF_RUNNING; }
+inline bool IsStopped() { return marlin_state == MarlinState::MF_STOPPED; }

 bool printingIsActive();
 bool printJobOngoing();
@@ -383,9 +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)
@@ -468,6 +468,11 @@
 #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
 //
@@ -103,7 +103,8 @@

 #define HAS_TRINAMIC HAS_TRINAMIC_CONFIG

-#if (    HAS_DRIVER(TMC2130_STANDALONE) || HAS_DRIVER(TMC2160_STANDALONE) \
+#if (    HAS_DRIVER(TMC2100) \
+      || HAS_DRIVER(TMC2130_STANDALONE) || HAS_DRIVER(TMC2160_STANDALONE) \
      || HAS_DRIVER(TMC2208_STANDALONE) || HAS_DRIVER(TMC2209_STANDALONE) \
      || HAS_DRIVER(TMC2660_STANDALONE) || HAS_DRIVER(TMC5130_STANDALONE) \
      || HAS_DRIVER(TMC5160_STANDALONE) )
@@ -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: "
@@ -354,6 +355,8 @@
 #define STR_PROBE_EN                        "probe_en"
 #define STR_FILAMENT                        "filament"

+#define STR_CALIBRATION                     "calibration"
+
 // General axis names
 #define STR_X "X"
 #define STR_Y "Y"
@@ -55,9 +55,6 @@
  #define CYCLES_PER_MICROSECOND (F_CPU / 1000000UL) // 16 or 20 on AVR
 #endif

-// Nanoseconds per cycle
-#define NANOSECONDS_PER_CYCLE (1000000000.0 / F_CPU)
-
 // Macros to make a string from a macro
 #define STRINGIFY_(M) #M
 #define STRINGIFY(M) STRINGIFY_(M)
@@ -89,7 +86,8 @@
 #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) sq(float(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);})
@@ -196,8 +194,8 @@
 #define ENABLED(V...)       DO(ENA,&&,V)
 #define DISABLED(V...)      DO(DIS,&&,V)
 #define ANY(V...)          !DISABLED(V)
-#define ALL                 ENABLED
-#define NONE                DISABLED
+#define ALL(V...)           ENABLED(V)
+#define NONE(V...)          DISABLED(V)
 #define COUNT_ENABLED(V...) DO(ENA,+,V)
 #define MANY(V...)          (COUNT_ENABLED(V) > 1)

@@ -629,7 +627,7 @@
 #define DEFER4(M) M EMPTY EMPTY EMPTY EMPTY()()()()

 // Force define expansion
-#define EVAL           EVAL16
+#define EVAL(V...)     EVAL16(V)
 #define EVAL4096(V...) EVAL2048(EVAL2048(V))
 #define EVAL2048(V...) EVAL1024(EVAL1024(V))
 #define EVAL1024(V...) EVAL512(EVAL512(V))
@@ -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); }
@@ -171,13 +171,14 @@ int32_t Backlash::get_applied_steps(const AxisEnum axis) {

  const int32_t residual_error_axis = residual_error[axis];

-  // At startup it is assumed the last move was forward.
-  // So the applied steps will always be negative.
+  // At startup, when no steps are applied, it is assumed the last move was backwards.
+  // So the applied steps will always be zero (when moving backwards) or a positive
+  // number (when moving forwards).

-  if (forward) return -residual_error_axis;
+  if (!forward) return -residual_error_axis;

  const float f_corr = float(correction) / all_on;
-  const int32_t full_error_axis = -f_corr * distance_mm[axis] * planner.settings.axis_steps_per_mm[axis];
+  const int32_t full_error_axis = f_corr * distance_mm[axis] * planner.settings.axis_steps_per_mm[axis];
  return full_error_axis - residual_error_axis;
 }

@@ -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

@@ -141,7 +141,7 @@ void MarlinEthernet::check() {

    case CONNECTING:
      telnetClient.println("Marlin " SHORT_BUILD_VERSION);
-      #if defined(STRING_DISTRIBUTION_DATE) && defined(STRING_CONFIG_H_AUTHOR)
+      #ifdef STRING_DISTRIBUTION_DATE
        telnetClient.println(
          " Last Updated: " STRING_DISTRIBUTION_DATE
          " | Author: " STRING_CONFIG_H_AUTHOR
@@ -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 = false;
+                runout.enabled[active_extruder] = false;
                runout.reset();
              }
            #endif
@@ -239,7 +239,7 @@ void LEDLights::set_color(const LEDColor &incol
  void LEDLights::toggle() { if (lights_on) set_off(); else update(); }
 #endif

-#if LED_POWEROFF_TIMEOUT > 0
+#if HAS_LED_POWEROFF_TIMEOUT

  millis_t LEDLights::led_off_time; // = 0

@@ -164,11 +164,11 @@ public:
  #if ENABLED(LED_CONTROL_MENU)
    static void toggle();  // swap "off" with color
  #endif
-  #if ANY(LED_CONTROL_MENU, CASE_LIGHT_USE_RGB_LED) || LED_POWEROFF_TIMEOUT > 0
+  #if ANY(LED_CONTROL_MENU, CASE_LIGHT_USE_RGB_LED, HAS_LED_POWEROFF_TIMEOUT)
    static void update() { set_color(color); }
  #endif

-  #if LED_POWEROFF_TIMEOUT > 0
+  #if HAS_LED_POWEROFF_TIMEOUT
    private:
      static millis_t led_off_time;
    public:
@@ -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)
@@ -135,7 +135,7 @@ void MMU2::reset() {
 int8_t MMU2::get_current_tool() { return extruder == MMU2_NO_TOOL ? -1 : extruder; }

 #if ANY(HAS_PRUSA_MMU2S, MMU_EXTRUDER_SENSOR)
-  #define FILAMENT_PRESENT() (READ(FIL_RUNOUT1_PIN) != FIL_RUNOUT1_STATE)
+  #define FILAMENT_PRESENT() (READ(FIL_RUNOUT1_PIN) != runout.out_state())
 #else
  #define FILAMENT_PRESENT() true
 #endif
@@ -214,12 +214,21 @@ bool load_filament(const_float_t slow_load_length/*=0*/, const_float_t fast_load
      impatient_beep(max_beep_count);
      #if ALL(FILAMENT_CHANGE_RESUME_ON_INSERT, FILAMENT_RUNOUT_SENSOR)
        #if MULTI_FILAMENT_SENSOR
-          #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)
+          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;
          }
        #else
-          if (READ(FIL_RUNOUT_PIN) != FIL_RUNOUT_STATE) wait_for_user = false;
+          if (READ(FIL_RUNOUT_PIN) != runout.out_state(active_extruder))
+            wait_for_user = false;
        #endif
      #endif
      idle_no_sleep();
@@ -201,7 +201,7 @@ void Power::power_off() {
  /**
   * Check all conditions that would signal power needing to be on.
   *
-   * @returns bool  if power is needed
+   * @return bool  if power is needed
   */
  bool Power::is_power_needed() {

@@ -205,6 +205,9 @@ void PrintJobRecovery::save(const bool force/*=false*/, const float zraise/*=POW
    // info.sdpos and info.current_position are pre-filled from the Stepper ISR

    info.feedrate = uint16_t(MMS_TO_MMM(feedrate_mm_s));
+    info.feedrate_percentage = feedrate_percentage;
+    COPY(info.flow_percentage, planner.flow_percentage);
+
    info.zraise = zraise;
    info.flag.raised = raised;                      // Was Z raised before power-off?

@@ -216,7 +219,7 @@ void PrintJobRecovery::save(const bool force/*=false*/, const float zraise/*=POW
    #if DISABLED(NO_VOLUMETRICS)
      info.flag.volumetric_enabled = parser.volumetric_enabled;
      #if HAS_MULTI_EXTRUDER
-        EXTRUDER_LOOP() info.filament_size[e] = planner.filament_size[e];
+        COPY(info.filament_size, planner.filament_size);
      #else
        if (parser.volumetric_enabled) info.filament_size[0] = planner.filament_size[active_extruder];
      #endif
@@ -269,7 +272,10 @@ void PrintJobRecovery::save(const bool force/*=false*/, const float zraise/*=POW

        #if POWER_LOSS_RETRACT_LEN
          // Retract filament now
-          gcode.process_subcommands_now(F("G1 F3000 E-" STRINGIFY(POWER_LOSS_RETRACT_LEN)));
+          const uint16_t old_flow = planner.flow_percentage[active_extruder];
+          planner.set_flow(active_extruder, 100);
+          gcode.process_subcommands_now(F("G1F3000E-" STRINGIFY(POWER_LOSS_RETRACT_LEN)));
+          planner.set_flow(active_extruder, old_flow);
        #endif

        #if POWER_LOSS_ZRAISE
@@ -555,8 +561,12 @@ void PrintJobRecovery::resume() {
  // Move back down to the saved Z for printing
  PROCESS_SUBCOMMANDS_NOW(TS(F("G1F600Z"), p_float_t(z_print, 3)));

-  // Restore the feedrate
+  // Restore the feedrate and percentage
  PROCESS_SUBCOMMANDS_NOW(TS(F("G1F"), info.feedrate));
+  feedrate_percentage = info.feedrate_percentage;
+
+  // Flowrate percentage
+  EXTRUDER_LOOP() planner.set_flow(e, info.flow_percentage[e]);

  // Restore E position with G92.9
  PROCESS_SUBCOMMANDS_NOW(TS(F("G92.9E"), p_float_t(resume_pos.e, 3)));
@@ -589,7 +599,8 @@ void PrintJobRecovery::resume() {
        }
        DEBUG_EOL();

-        DEBUG_ECHOLNPGM("feedrate: ", info.feedrate);
+        DEBUG_ECHOLN(F("feedrate: "), info.feedrate, F(" x "), info.feedrate_percentage, '%');
+        EXTRUDER_LOOP() DEBUG_ECHOLN('E', e + 1, F(" flow %: "), info.flow_percentage[e]);

        DEBUG_ECHOLNPGM("zraise: ", info.zraise, " ", info.flag.raised ? "(before)" : "");

@@ -59,6 +59,8 @@ typedef struct {
  // Machine state
  xyze_pos_t current_position;
  uint16_t feedrate;
+  int16_t feedrate_percentage;
+  uint16_t flow_percentage[EXTRUDERS];

  float zraise;

@@ -0,0 +1,39 @@
+/**
+ * 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/>.
+ *
+ */
+#include "../inc/MarlinConfig.h"
+
+#if HAS_RS485_SERIAL
+
+#include "rs485.h"
+
+HardwareSerialBusIO rs485BusIO(&RS485_SERIAL);
+RS485Bus<RS485_BUS_BUFFER_SIZE> rs485Bus(rs485BusIO, RS485_RX_ENABLE_PIN, RS485_TX_ENABLE_PIN);
+
+PhotonProtocol rs485Protocol;
+
+Packetizer rs485Packetizer(rs485Bus, rs485Protocol);
+
+uint8_t rs485Buffer[RS485_SEND_BUFFER_SIZE];
+
+void rs485_init() { RS485_SERIAL.begin(57600); }
+
+#endif // HAS_RS485_SERIAL
@@ -0,0 +1,40 @@
+/**
+ * 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
+
+#include "../inc/MarlinConfigPre.h"
+
+#include <rs485/rs485bus.hpp>
+#include <rs485/bus_adapters/hardware_serial.h>
+
+#include <rs485/protocols/photon.h>
+#include <rs485/packetizer.h>
+
+#define RS485_SEND_BUFFER_SIZE 32
+
+extern HardwareSerialBusIO rs485BusIO;
+extern RS485Bus<RS485_BUS_BUFFER_SIZE> rs485Bus;
+extern PhotonProtocol rs485Protocol;
+extern Packetizer rs485Packetizer;
+extern uint8_t rs485Buffer[RS485_SEND_BUFFER_SIZE];
+
+void rs485_init();
@@ -32,9 +32,9 @@

 FilamentMonitor runout;

-bool FilamentMonitorBase::enabled = true,
-     FilamentMonitorBase::filament_ran_out;  // = false
-
+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
 #if ENABLED(HOST_ACTION_COMMANDS)
  bool FilamentMonitorBase::host_handling; // = false
 #endif
@@ -45,15 +45,10 @@ bool FilamentMonitorBase::enabled = true,
  #include "../core/debug_out.h"
 #endif

-#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
+float RunoutResponseDelayed::runout_distance_mm[NUM_RUNOUT_SENSORS]; // Initialized by settings.load
+countdown_t RunoutResponseDelayed::mm_countdown;
+uint8_t FilamentSensorCore::motion_detected;
+int8_t RunoutResponseDelayed::runout_count[NUM_RUNOUT_SENSORS]; // = 0

 //
 // Filament Runout event handler
@@ -40,16 +40,6 @@
 #endif

 //#define FILAMENT_RUNOUT_SENSOR_DEBUG
-#ifndef FILAMENT_RUNOUT_THRESHOLD
-  #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
@@ -62,73 +52,65 @@ typedef Flags<
 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 FilamentSensor;
-class RunoutResponseDelayed;
-class RunoutResponseDebounced;
-
-/********************************* TEMPLATE SPECIALIZATION *********************************/
-
-typedef TFilamentMonitor<
-          TERN(HAS_FILAMENT_RUNOUT_DISTANCE, RunoutResponseDelayed, RunoutResponseDebounced),
-          FilamentSensor
-        > FilamentMonitor;
-
-extern FilamentMonitor runout;
-
 /*******************************************************************************************/

-class FilamentMonitorBase {
+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 FilamentSensor {
  public:
-    static bool enabled, filament_ran_out;
+    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; }

    #if ENABLED(HOST_ACTION_COMMANDS)
      static bool host_handling;
    #else
      static constexpr bool host_handling = false;
    #endif
-};

-template<class RESPONSE_T, class SENSOR_T>
-class TFilamentMonitor : public FilamentMonitorBase {
-  private:
-    typedef RESPONSE_T response_t;
-    typedef SENSOR_T   sensor_t;
-    static  response_t response;
-    static  sensor_t   sensor;
-
-  public:
    static void setup() {
-      sensor.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);
+      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
      reset();
    }

    static void reset() {
      filament_ran_out = false;
-      response.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
    }

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

    // 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) {
+      if (enabled[active_extruder]) {
        response.block_completed(b);
        sensor.block_completed(b);
      }
@@ -137,11 +119,11 @@ class TFilamentMonitor : public FilamentMonitorBase {
    // Give the response a chance to update its counter.
    static void run() {
      if (enabled && !filament_ran_out && should_monitor_runout()) {
-        TERN_(HAS_FILAMENT_RUNOUT_DISTANCE, cli()); // Prevent RunoutResponseDelayed::block_completed from accumulating here
+        cli(); // Prevent RunoutResponseDelayed::block_completed from accumulating here
        response.run();
        sensor.run();
        const runout_flags_t runout_flags = response.has_run_out();
-        TERN_(HAS_FILAMENT_RUNOUT_DISTANCE, sei());
+        sei();
        #if MULTI_FILAMENT_SENSOR
          #if ENABLED(WATCH_ALL_RUNOUT_SENSORS)
            const bool ran_out = bool(runout_flags);  // any sensor triggers
@@ -169,11 +151,7 @@ class TFilamentMonitor : public FilamentMonitorBase {
        }
      }
    }
-};

-/*************************** FILAMENT PRESENCE SENSORS ***************************/
-
-class FilamentSensorBase {
  protected:
    /**
     * Called by FilamentSensorSwitch::run when filament is detected.
@@ -182,26 +160,8 @@ 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);
-      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
-    }

    // Return a bitmask of runout pin states
    static uint8_t poll_runout_pins() {
@@ -212,12 +172,11 @@ class FilamentSensorBase {

    // Return a bitmask of runout flag states (1 bits always indicates runout)
    static uint8_t poll_runout_states() {
-      #define _INVERT_BIT(N) | (FIL_RUNOUT##N##_STATE ? 0 : _BV(N - 1))
+      #define _INVERT_BIT(N) | (runout.out_state(N-1) ? 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)
@@ -231,20 +190,23 @@ class FilamentSensorBase {
        return poll_motion_pins() ^ uint8_t(0 REPEAT_1(NUM_MOTION_SENSORS, _OR_MOTION));
        #undef _OR_MOTION
      }
-    #endif
 };

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

-  /**
-   * 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 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
+      }

      static void poll_motion_sensor() {
        static uint8_t old_state;
@@ -275,36 +237,12 @@ class FilamentSensorBase {
        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
+    static void run() {
+      if (mode[active_extruder] == RM_MOTION_SENSOR) {
+        poll_motion_sensor();
      }
-
-    public:
-      static void block_completed(const block_t * const) {}
-
-      static void run() {
-        for (uint8_t s = 0; s < NUM_RUNOUT_SENSORS; ++s) {
+      else if (mode[active_extruder] != RM_NONE) {
+        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)
@@ -316,36 +254,13 @@ class FilamentSensorBase {
          #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 *********************************/

-#if HAS_FILAMENT_RUNOUT_DISTANCE
-
-  typedef struct {
+typedef struct {
    float runout[NUM_RUNOUT_SENSORS];
    Flags<NUM_RUNOUT_SENSORS> runout_reset;    // Reset runout later
    #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
@@ -361,15 +276,9 @@ class FilamentSensorBase {
    private:
      static countdown_t mm_countdown;

-    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
-      }
+  public:
+    static float runout_distance_mm[NUM_RUNOUT_SENSORS];
+    static int8_t runout_count[NUM_RUNOUT_SENSORS];

      static void run() {
        #if ENABLED(FILAMENT_RUNOUT_SENSOR_DEBUG)
@@ -398,11 +307,11 @@ class FilamentSensorBase {
      }

      static void filament_present(const uint8_t extruder) {
-        if (mm_countdown.runout[extruder] < runout_distance_mm || did_pause_print) {
+        if (mm_countdown.runout[extruder] < runout_distance_mm[extruder] || 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[extruder] = runout_distance_mm[extruder];
          mm_countdown.runout_reset.clear(extruder);
        }
        else {
@@ -451,36 +360,3 @@ class FilamentSensorBase {
      }
  };

-#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();
@@ -634,7 +634,7 @@ void GcodeSuite::G33() {
          }
        SERIAL_EOL();

-        MString<20> msg(F("Calibration sd:"));
+        MString<21> msg(F("Calibration sd:"));
        if (zero_std_dev_min < 1)
          msg.appendf(F("0.%03i"), (int)LROUND(zero_std_dev_min * 1000.0f));
        else
@@ -181,20 +181,6 @@ inline void park_above_object(measurements_t &m, const float uncertainty) {

 #endif

-#if !PIN_EXISTS(CALIBRATION)
-  #include "../../module/probe.h"
-#endif
-
-inline bool read_calibration_pin() {
-  return (
-    #if PIN_EXISTS(CALIBRATION)
-      READ(CALIBRATION_PIN) != CALIBRATION_PIN_INVERTING
-    #else
-      PROBE_TRIGGERED()
-    #endif
-  );
-}
-
 /**
 * Move along axis in the specified dir until the probe value becomes stop_state,
 * then return the axis value.
@@ -205,18 +191,18 @@ inline bool read_calibration_pin() {
 *   fast         in - Fast vs. precise measurement
 */
 float measuring_movement(const AxisEnum axis, const int dir, const bool stop_state, const bool fast) {
-  const float step     = fast ? 0.25 : CALIBRATION_MEASUREMENT_RESOLUTION;
  const feedRate_t mms = fast ? MMM_TO_MMS(CALIBRATION_FEEDRATE_FAST) : MMM_TO_MMS(CALIBRATION_FEEDRATE_SLOW);
  const float limit    = fast ? 50 : 5;

  destination = current_position;
-  for (float travel = 0; travel < limit; travel += step) {
-    destination[axis] += dir * step;
-    do_blocking_move_to((xyz_pos_t)destination, mms);
-    planner.synchronize();
-    if (read_calibration_pin() == stop_state) break;
-  }
-  return destination[axis];
+  destination[axis] += dir * limit;
+  endstops.enable_calibration_probe(true, stop_state);
+  do_blocking_move_to((xyz_pos_t)destination, mms);
+  endstops.enable_calibration_probe(false);
+  endstops.hit_on_purpose();
+  set_current_from_steppers_for_axis(axis);
+  sync_plan_position();
+  return current_position[axis];
 }

 /**
@@ -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)
@@ -112,9 +112,9 @@ void GcodeSuite::M81() {
    return;
  }

-  #if HAS_SUICIDE
-    suicide();
-  #elif ENABLED(PSU_CONTROL)
+  #if ENABLED(PSU_CONTROL)
    powerManager.power_off_soon();
+  #elif HAS_SUICIDE
+    suicide();
  #endif
 }
@@ -36,7 +36,7 @@
 * existing command buffer.
 */
 void GcodeSuite::M999() {
-  marlin_state = MF_RUNNING;
+  marlin_state = MarlinState::MF_RUNNING;
  ui.reset_alert_level();

  if (parser.boolval('S')) return;
@@ -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
      );
--- a/Show More
+++ b/Show More