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
662 changed files with 12713 additions and 8519 deletions
@@ -1,40 +0,0 @@
-#
-# Configuration for Lock Threads - https://github.com/dessant/lock-threads-app
-#
-
-# Number of days of inactivity before a closed issue or pull request is locked
-daysUntilLock: 60
-
-# Skip issues and pull requests created before a given timestamp. Timestamp must
-# follow ISO 8601 (`YYYY-MM-DD`). Set to `false` to disable
-skipCreatedBefore: false
-
-# Issues and pull requests with these labels will be ignored. Set to `[]` to disable
-exemptLabels: [ 'no-locking' ]
-
-# Label to add before locking, such as `outdated`. Set to `false` to disable
-lockLabel: false
-
-# Comment to post before locking. Set to `false` to disable
-lockComment: >
-  This thread has been automatically locked since there has not been
-  any recent activity after it was closed. Please open a new issue for
-  related bugs.
-
-# Assign `resolved` as the reason for locking. Set to `false` to disable
-setLockReason: true
-
-# Limit to only `issues` or `pulls`
-# only: issues
-
-# Optionally, specify configuration settings just for `issues` or `pulls`
-# issues:
-#   exemptLabels:
-#     - help-wanted
-#   lockLabel: outdated
-
-# pulls:
-#   daysUntilLock: 30
-
-# Repository to extend settings from
-# _extends: repo
@@ -19,7 +19,7 @@ jobs:
    steps:

    - name: Check out bugfix-2.0.x
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
      with:
        ref: bugfix-2.0.x

@@ -39,7 +39,7 @@ jobs:
        exit 0

    - name: Check out bugfix-2.1.x
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
      with:
        ref: bugfix-2.1.x

@@ -1,9 +1,9 @@
 #
-# test-builds.yml
+# ci-build-tests.yml
 # Do test builds to catch compile errors
 #

-name: CI
+name: CI - Build Tests

 on:
  pull_request:
@@ -14,6 +14,8 @@ on:
    - config/**
    - data/**
    - docs/**
+    - test/**
+    - Marlin/tests/**
    - '**/*.md'
  push:
    branches:
@@ -23,16 +25,19 @@ on:
    - config/**
    - data/**
    - docs/**
+    - test/**
+    - Marlin/tests/**
    - '**/*.md'

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

    runs-on: ubuntu-latest

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

@@ -152,7 +157,7 @@ jobs:
      uses: actions/checkout@v4

    - name: Cache pip
-      uses: actions/cache@v3
+      uses: actions/cache@v4
      with:
        path: ~/.cache/pip
        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
@@ -160,13 +165,13 @@ jobs:
          ${{ runner.os }}-pip-

    - name: Cache PlatformIO
-      uses: actions/cache@v3
+      uses: actions/cache@v4
      with:
        path: ~/.platformio
        key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}

    - name: Select Python 3.9
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
      with:
        python-version: '3.9'
        architecture: 'x64'
@@ -0,0 +1,73 @@
+#
+# ci-unit-tests.yml
+# Build and execute unit tests to catch functional issues in code
+#
+
+name: CI - Unit Tests
+
+on:
+  pull_request:
+    branches:
+    - bugfix-2.1.x
+    # Cannot be enabled on 2.1.x until it contains the unit test framework
+    #- 2.1.x
+    paths-ignore:
+    - config/**
+    - data/**
+    - docs/**
+    - '**/*.md'
+  push:
+    branches:
+    - bugfix-2.1.x
+    # Cannot be enabled on 2.1.x until it contains the unit test framework
+    #- 2.1.x
+    paths-ignore:
+    - config/**
+    - data/**
+    - docs/**
+    - '**/*.md'
+
+jobs:
+  # This runs all unit tests as a single job. While it should be possible to break this up into
+  # multiple jobs, they currently run quickly and finish long before the compilation tests.
+  run_unit_tests:
+    name: Unit Test
+    # These tests will only be able to run on the bugfix-2.1.x branch, until the next release
+    # pulls them into additional branches.
+    if: github.repository == 'MarlinFirmware/Marlin'
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out the PR
+      uses: actions/checkout@v4
+
+    - name: Cache pip
+      uses: actions/cache@v4
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+
+    - name: Cache PlatformIO
+      uses: actions/cache@v4
+      with:
+        path: ~/.platformio
+        key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
+
+    - name: Select Python 3.9
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.9'
+        architecture: 'x64'
+
+    - name: Install PlatformIO
+      run: |
+        pip install -U platformio
+        pio upgrade --dev
+        pio pkg update --global
+
+    - name: Run All Unit Tests
+      run: |
+        make unit-test-all-local
@@ -0,0 +1,51 @@
+#
+# ci-validate-pins.yml
+# Validate that all of the pins files are unchanged by pinsformat.py
+#
+
+name: CI - Validate Pins Files
+
+on:
+  pull_request:
+    branches:
+    - bugfix-2.1.x
+    # Cannot be enabled on 2.1.x until it contains the unit test framework
+    #- 2.1.x
+    paths:
+    - 'Marlin/src/pins/*/**'
+  push:
+    branches:
+    - bugfix-2.1.x
+    # Cannot be enabled on 2.1.x until it contains the unit test framework
+    #- 2.1.x
+    paths:
+    - 'Marlin/src/pins/*/**'
+
+jobs:
+  validate_pins_files:
+    name: Validate Pins Files
+    if: github.repository == 'MarlinFirmware/Marlin'
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out the PR
+      uses: actions/checkout@v4
+
+    - name: Cache pip
+      uses: actions/cache@v4
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+
+    - name: Select Python 3.9
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.9'
+        architecture: 'x64'
+
+    - name: Validate all pins files
+      run: |
+        make validate-pins -j
@@ -32,7 +32,7 @@ jobs:
          - "Needs: Work"

    steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
      - name: Remove Labels
        uses: actions-ecosystem/action-remove-labels@v1
        with:
@@ -17,7 +17,7 @@ jobs:
    runs-on: ubuntu-latest

    steps:
-    - uses: actions/stale@v8
+    - uses: actions/stale@v9
      with:
        repo-token: ${{ secrets.GITHUB_TOKEN }}
        stale-issue-message: |
@@ -17,15 +17,15 @@ jobs:
    runs-on: ubuntu-latest

    steps:
-    - uses: dessant/lock-threads@v2
+    - uses: dessant/lock-threads@v5
      with:
        github-token: ${{ github.token }}
        process-only: 'issues'
-        issue-lock-inactive-days: '60'
-        issue-exclude-created-before: ''
-        issue-exclude-labels: 'no-locking'
-        issue-lock-labels: ''
-        issue-lock-comment: >
+        issue-inactive-days: '60'
+        exclude-issue-created-before: ''
+        exclude-any-issue-labels: 'no-locking'
+        add-issue-labels: ''
+        issue-comment: >
          This issue has been automatically locked since there
          has not been any recent activity after it was closed.
          Please open a new issue for related bugs.
@@ -2,17 +2,23 @@ SCRIPTS_DIR := buildroot/share/scripts
 CONTAINER_RT_BIN := docker
 CONTAINER_RT_OPTS := --rm -v $(PWD):/code -v platformio-cache:/root/.platformio
 CONTAINER_IMAGE := marlin-dev
+UNIT_TEST_CONFIG ?= default

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

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

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

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

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

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

 format-pins: $(PINS)
+
+validate-pins: format-pins
+	@echo "Validating pins files"
+	@git diff --exit-code || (git status && echo "\nError: Pins files are not formatted correctly. Run \"make format-pins\" to fix.\n" && exit 1)
@@ -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

@@ -135,9 +145,9 @@
 * Options: A4988, A5984, DRV8825, LV8729, TB6560, TB6600, TMC2100,
 *          TMC2130, TMC2130_STANDALONE, TMC2160, TMC2160_STANDALONE,
 *          TMC2208, TMC2208_STANDALONE, TMC2209, TMC2209_STANDALONE,
- *          TMC26X,  TMC26X_STANDALONE,  TMC2660, TMC2660_STANDALONE,
- *          TMC5130, TMC5130_STANDALONE, TMC5160, TMC5160_STANDALONE
- * :['A4988', 'A5984', 'DRV8825', 'LV8729', 'TB6560', 'TB6600', 'TMC2100', 'TMC2130', 'TMC2130_STANDALONE', 'TMC2160', 'TMC2160_STANDALONE', 'TMC2208', 'TMC2208_STANDALONE', 'TMC2209', 'TMC2209_STANDALONE', 'TMC26X', 'TMC26X_STANDALONE', 'TMC2660', 'TMC2660_STANDALONE', 'TMC5130', 'TMC5130_STANDALONE', 'TMC5160', 'TMC5160_STANDALONE']
+ *          TMC2660, TMC2660_STANDALONE, TMC5130, TMC5130_STANDALONE,
+ *          TMC5160, TMC5160_STANDALONE
+ * :['A4988', 'A5984', 'DRV8825', 'LV8729', 'TB6560', 'TB6600', 'TMC2100', 'TMC2130', 'TMC2130_STANDALONE', 'TMC2160', 'TMC2160_STANDALONE', 'TMC2208', 'TMC2208_STANDALONE', 'TMC2209', 'TMC2209_STANDALONE', 'TMC2660', 'TMC2660_STANDALONE', 'TMC5130', 'TMC5130_STANDALONE', 'TMC5160', 'TMC5160_STANDALONE']
 */
 #define X_DRIVER_TYPE  A4988
 #define Y_DRIVER_TYPE  A4988
@@ -401,9 +411,18 @@
  //#define PS_OFF_SOUND            // Beep 1s when power off
  #define PSU_ACTIVE_STATE LOW      // Set 'LOW' for ATX, 'HIGH' for X-Box

-  //#define PSU_DEFAULT_OFF               // Keep power off until enabled directly with M80
-  //#define PSU_POWERUP_DELAY      250    // (ms) Delay for the PSU to warm up to full power
-  //#define LED_POWEROFF_TIMEOUT 10000    // (ms) Turn off LEDs after power-off, with this amount of delay
+  //#define PSU_DEFAULT_OFF             // Keep power off until enabled directly with M80
+  //#define PSU_POWERUP_DELAY      250  // (ms) Delay for the PSU to warm up to full power
+  //#define LED_POWEROFF_TIMEOUT 10000  // (ms) Turn off LEDs after power-off, with this amount of delay
+
+  //#define PSU_OFF_REDUNDANT           // Second pin for redundant power control
+  //#define PSU_OFF_REDUNDANT_INVERTED  // Redundant pin state is the inverse of PSU_ACTIVE_STATE
+
+  //#define PS_ON1_PIN               6  // Redundant pin required to enable power in combination with PS_ON_PIN
+
+  //#define PS_ON_EDM_PIN            8  // External Device Monitoring pins for external power control relay feedback. Fault on mismatch.
+  //#define PS_ON1_EDM_PIN           9
+  #define PS_EDM_RESPONSE          250  // (ms) Time to allow for relay action

  //#define POWER_OFF_TIMER               // Enable M81 D<seconds> to power off after a delay
  //#define POWER_OFF_WAIT_FOR_COOLDOWN   // Enable M81 S to power off only after cooldown
@@ -663,7 +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
@@ -1006,9 +1025,6 @@
    // Radius around the center where the arm cannot reach
    #define MIDDLE_DEAD_ZONE_R   0  // (mm)

-    #define THETA_HOMING_OFFSET  0  // Calculated from Calibration Guide and M360 / M114. See https://www.morgan3dp.com/morgan-calibration-guide/
-    #define PSI_HOMING_OFFSET    0  // Calculated from Calibration Guide and M364 / M114. See https://www.morgan3dp.com/morgan-calibration-guide/
-
  #elif ENABLED(MP_SCARA)

    #define SCARA_OFFSET_THETA1  12 // degrees
@@ -1027,23 +1043,19 @@
  #define DEFAULT_SEGMENTS_PER_SECOND 200

  // Length of inner and outer support arms. Measure arm lengths precisely.
-  #define TPARA_LINKAGE_1 120       // (mm)
-  #define TPARA_LINKAGE_2 120       // (mm)
+  #define TPARA_LINKAGE_1 120     // (mm)
+  #define TPARA_LINKAGE_2 120     // (mm)

-  // SCARA tower offset (position of Tower relative to bed zero position)
-  // This needs to be reasonably accurate as it defines the printbed position in the SCARA space.
-  #define TPARA_OFFSET_X    0       // (mm)
-  #define TPARA_OFFSET_Y    0       // (mm)
-  #define TPARA_OFFSET_Z    0       // (mm)
+  // TPARA tower offset (position of Tower relative to bed zero position)
+  // This needs to be reasonably accurate as it defines the printbed position in the TPARA space.
+  #define TPARA_OFFSET_X    0     // (mm)
+  #define TPARA_OFFSET_Y    0     // (mm)
+  #define TPARA_OFFSET_Z    0     // (mm)

  #define FEEDRATE_SCALING        // Convert XY feedrate from mm/s to degrees/s on the fly

  // Radius around the center where the arm cannot reach
  #define MIDDLE_DEAD_ZONE_R   0  // (mm)
-
-  // Calculated from Calibration Guide and M360 / M114. See https://www.morgan3dp.com/morgan-calibration-guide/
-  #define THETA_HOMING_OFFSET  0
-  #define PSI_HOMING_OFFSET    0
 #endif

 // @section polar
@@ -1896,12 +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.
@@ -1945,58 +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

 //===========================================================================
@@ -2216,7 +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)
@@ -2419,7 +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 }
@@ -2634,9 +2598,9 @@
 #define DISPLAY_CHARSET_HD44780 JAPANESE

 /**
- * Info Screen Style (0:Classic, 1:Průša)
+ * Info Screen Style (0:Classic, 1:Průša, 2:CNC)
 *
- * :[0:'Classic', 1:'Průša']
+ * :[0:'Classic', 1:'Průša', 2:'CNC']
 */
 #define LCD_INFO_SCREEN_STYLE 0

@@ -3413,8 +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
-  //#define TOUCH_IDLE_SLEEP_MINS 5 // (minutes) Display Sleep after a period of inactivity. Set with M255 S.
+  #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
@@ -1185,33 +1187,32 @@
 * 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          // (Hz) The default dominant resonant frequency on the X axis.
-    #define SHAPING_ZETA_X  0.15f       // Damping ratio of the X axis (range: 0.0 = no damping to 1.0 = critical damping).
+    #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).
  #endif
  #if ENABLED(INPUT_SHAPING_Y)
-    #define SHAPING_FREQ_Y  40          // (Hz) The default dominant resonant frequency on the Y axis.
-    #define SHAPING_ZETA_Y  0.15f       // Damping ratio of the Y axis (range: 0.0 = no damping to 1.0 = critical damping).
+    #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
-  //#define SHAPING_MIN_FREQ  20        // By default the minimum of the shaping frequencies. Override to affect SRAM usage.
+  #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.
 #endif
@@ -1270,11 +1271,11 @@
 * XY Frequency limit
 * Reduce resonance by limiting the frequency of small zigzag infill moves.
 * See https://hydraraptor.blogspot.com/2010/12/frequency-limit.html
- * Use M201 F<freq> G<min%> to change limits at runtime.
+ * Use M201 F<freq> S<min%> to change limits at runtime.
 */
 //#define XY_FREQUENCY_LIMIT      10 // (Hz) Maximum frequency of small zigzag infill moves. Set with M201 F<hertz>.
 #ifdef XY_FREQUENCY_LIMIT
-  #define XY_FREQUENCY_MIN_PERCENT 5 // (%) Minimum FR percentage to apply. Set with M201 G<min%>.
+  #define XY_FREQUENCY_MIN_PERCENT 5 // (%) Minimum FR percentage to apply. Set with M201 S<min%>.
 #endif

 //
@@ -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
@@ -1970,17 +1969,6 @@
  // Western only. Not available for Cyrillic, Kana, Turkish, Greek, or Chinese.
  //#define USE_SMALL_INFOFONT

-  /**
-   * Graphical Display Sleep
-   *
-   * The U8G library provides sleep / wake functions for SH1106, SSD1306,
-   * SSD1309, and some other DOGM displays.
-   * Enable this option to save energy and prevent OLED pixel burn-in.
-   * Adds the menu item Configuration > LCD Timeout (m) to set a wait period
-   * from 0 (disabled) to 99 minutes.
-   */
-  //#define DISPLAY_SLEEP_MINUTES 2  // (minutes) Timeout before turning off the screen. Set with M255 S.
-
  /**
   * ST7920-based LCDs can emulate a 16 x 4 character display using
   * the ST7920 character-generator for very fast screen updates.
@@ -2229,13 +2217,20 @@
  //#define TFT_BTOKMENU_COLOR 0x145F // 00010 100010 11111 Cyan
 #endif

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

 //
@@ -2334,6 +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

@@ -2561,27 +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.
 */
@@ -2658,7 +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)
@@ -2702,7 +2699,7 @@
 * This feature is EXPERIMENTAL so use with caution and test thoroughly.
 * Enable this option to receive data on the serial ports via the onboard DMA
 * controller for more stable and reliable high-speed serial communication.
- * Only some STM32 MCUs are currently supported.
+ * Support is currently limited to some STM32 MCUs and all HC32 MCUs.
 * Note: This has no effect on emulated USB serial ports.
 */
 //#define SERIAL_DMA
@@ -2891,7 +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.
@@ -2957,15 +2954,12 @@
 *    Some boards have simple jumper connections! See your board's documentation.
 *  - These drivers can also be used with Hardware Serial.
 *
- * The TMC26XStepper library is required for TMC26X stepper drivers.
- *   https://github.com/MarlinFirmware/TMC26XStepper
- *
 * The TMCStepper library is required for other TMC stepper drivers.
 *   https://github.com/teemuatlut/TMCStepper
 *
 * @section tmc/config
 */
-#if HAS_TRINAMIC_CONFIG || HAS_TMC26X
+#if HAS_TRINAMIC_CONFIG

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

@@ -2979,7 +2973,7 @@
    #define X_CURRENT       800        // (mA) RMS current. Multiply by 1.414 for peak current.
    #define X_CURRENT_HOME  X_CURRENT  // (mA) RMS current for sensorless homing
    #define X_MICROSTEPS     16        // 0..256
-    #define X_RSENSE          0.11     // Multiplied x1000 for TMC26X
+    #define X_RSENSE          0.11
    #define X_CHAIN_POS      -1        // -1..0: Not chained. 1: MCU MOSI connected. 2: Next in chain, ...
    //#define X_INTERPOLATE  true      // Enable to override 'INTERPOLATE' for the X axis
    //#define X_HOLD_MULTIPLIER 0.5    // Enable to override 'HOLD_MULTIPLIER' for the X axis
@@ -3472,7 +3466,7 @@
   */
  #define TMC_ADV() {  }

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

 // @section i2cbus

@@ -3565,7 +3559,7 @@
 * Add the M3, M4, and M5 commands to turn the spindle/laser on and off, and
 * to set spindle speed, spindle direction, and laser power.
 *
- * SuperPid is a router/spindle speed controller used in the CNC milling community.
+ * SuperPID is a router/spindle speed controller used in the CNC milling community.
 * Marlin can be used to turn the spindle on and off. It can also be used to set
 * the spindle speed from 5,000 to 30,000 RPM.
 *
@@ -4268,7 +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
@@ -4315,6 +4310,7 @@
                                          // See class CodeProfiler.
  //#define MAX7219_DEBUG_MULTISTEPPING 6 // Show multi-stepping 1 to 128 on this LED matrix row.
  //#define MAX7219_DEBUG_SLOWDOWN      6 // Count (mod 16) how many times SLOWDOWN has reduced print speed.
+  //#define MAX7219_REINIT_ON_POWERUP     // Re-initialize MAX7129 when power supply turns on
 #endif

 /**
@@ -4348,7 +4344,7 @@
 * Extras for an ESP32-based motherboard with WIFISUPPORT
 * These options don't apply to add-on WiFi modules based on ESP32 WiFi101.
 */
-#if ENABLED(WIFISUPPORT)
+#if ANY(WIFISUPPORT, ESP3D_WIFISUPPORT)
  //#define WEBSUPPORT          // Start a webserver (which may include auto-discovery) using SPIFFS
  //#define OTASUPPORT          // Support over-the-air firmware updates
  //#define WIFI_CUSTOM_COMMAND // Accept feature config commands (e.g., WiFi ESP3D) from the host
@@ -4531,3 +4527,6 @@

 // Report uncleaned reset reason from register r2 instead of MCUSR. Supported by Optiboot on AVR.
 //#define OPTIBOOT_RESET_REASON
+
+// Shrink the build for smaller boards by sacrificing some serial feedback
+//#define MARLIN_SMALL_BUILD
@@ -41,7 +41,7 @@
 * here we define this default string as the date where the latest release
 * version was tagged.
 */
-//#define STRING_DISTRIBUTION_DATE "2024-01-31"
+//#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
 //
@@ -123,6 +123,11 @@ void MarlinHAL::init() {

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

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

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

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

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

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

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

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

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

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

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

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

 typedef Serial1Class<MarlinSerial> MSerialT;
@@ -0,0 +1,75 @@
+/**
+ * app_config.h is included by the hc32f460 arduino build script for every source file.
+ * it is used to configure the arduino core (and ddl) automatically according
+ * to the settings in Configuration.h and Configuration_adv.h.
+ */
+#pragma once
+#ifndef _HC32_APP_CONFIG_H_
+#define _HC32_APP_CONFIG_H_
+
+#include "../../inc/MarlinConfigPre.h"
+
+//
+// dev mode
+//
+#if ENABLED(MARLIN_DEV_MODE)
+  #define __DEBUG 1
+  #define __CORE_DEBUG 1
+#endif
+
+//
+// Fault Handlers and Panic
+//
+
+#if ENABLED(POSTMORTEM_DEBUGGING)
+  // disable arduino core fault handler, as we define our own
+  #define CORE_DISABLE_FAULT_HANDLER 1
+#endif
+
+// force-enable panic handler so that we can use our custom one (in MinSerial)
+#define PANIC_ENABLE 1
+
+// use short filenames in ddl debug and core panic output
+#define __DEBUG_SHORT_FILENAMES 1
+#define __PANIC_SHORT_FILENAMES 1
+
+// omit panic messages in core panic output
+#define __OMIT_PANIC_MESSAGE 1
+
+//
+// Usart
+//
+
+// disable serial globals (Serial1, Serial2, ...), as we define our own
+#define DISABLE_SERIAL_GLOBALS 1
+
+// increase the size of the Usart buffers (both RX and TX)
+// NOTE:
+// the heap usage will increase by (SERIAL_BUFFER_SIZE - 64) * "number of serial ports used"
+// if running out of heap, the system may become unstable
+//#define SERIAL_BUFFER_SIZE 256
+
+// enable support for Usart Clock Divider / Oversampling auto config
+#define USART_AUTO_CLKDIV_OS_CONFIG 1
+
+// enable USART_RX_DMA_SUPPORT core option when SERIAL_DMA is enabled
+#if ENABLED(SERIAL_DMA)
+  #define USART_RX_DMA_SUPPORT 1
+#endif
+
+//
+// Misc.
+//
+
+// redirect printf to host serial
+#define REDIRECT_PRINTF_TO_SERIAL 1
+
+// F_CPU must be known at compile time, but on HC32F460 it's not.
+// Thus we assume HCLK to be 200MHz, as that's what is configured in
+// 'core_hook_sysclock_init' in 'sysclock.cpp'.
+// If you face issues with this assumption, please double-check with the values
+// printed by 'MarlinHAL::HAL_clock_frequencies_dump'.
+// see also: HAL_TIMER_RATE in timers.h
+#define F_CPU 200000000 // 200MHz HCLK
+
+#endif // _HC32_APP_CONFIG_H_
@@ -40,9 +40,15 @@ void endstopIRQHandler() {
  CHECK(X_MAX);
  CHECK(X_MIN);

+  CHECK(X2_MAX);
+  CHECK(X2_MIN);
+
  CHECK(Y_MAX);
  CHECK(Y_MIN);

+  CHECK(Y2_MAX);
+  CHECK(Y2_MIN);
+
  CHECK(Z_MAX);
  CHECK(Z_MIN);

@@ -52,6 +58,9 @@ void endstopIRQHandler() {
  CHECK(Z3_MAX);
  CHECK(Z3_MIN);

+  CHECK(Z4_MAX);
+  CHECK(Z4_MIN);
+
  CHECK(Z_MIN_PROBE);

  // Update endstops
@@ -69,9 +78,15 @@ void setup_endstop_interrupts() {
  SETUP(X_MAX);
  SETUP(X_MIN);

+  SETUP(X2_MAX);
+  SETUP(X2_MIN);
+
  SETUP(Y_MAX);
  SETUP(Y_MIN);

+  SETUP(Y2_MAX);
+  SETUP(Y2_MIN);
+
  SETUP(Z_MAX);
  SETUP(Z_MIN);

@@ -81,14 +96,19 @@ void setup_endstop_interrupts() {
  SETUP(Z3_MAX);
  SETUP(Z3_MIN);

+  SETUP(Z4_MAX);
+  SETUP(Z4_MIN);
+
  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_Y_MAX, USE_Y_MIN, USE_Z_MAX, USE_Z_MIN, USE_Z2_MAX, USE_Z2_MIN, USE_Z3_MAX, USE_Z3_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
@@ -20,6 +20,20 @@
 *
 */
 #pragma once
+#include <core_util.h>
+
+#if !defined(ARDUINO_CORE_VERSION_INT) || !defined(GET_VERSION_INT)
+  // version macros were introduced in arduino core version 1.1.0
+  // below that version, we polyfill them
+  #define GET_VERSION_INT(major, minor, patch) ((major * 100000) + (minor * 1000) + patch)
+  #define ARDUINO_CORE_VERSION_INT GET_VERSION_INT(1, 0, 0)
+#endif
+
+#if ARDUINO_CORE_VERSION_INT < GET_VERSION_INT(1, 1, 0)
+  // because we use app_config.h introduced in arduino core version 1.1.0, the
+  // HAL is not compatible with older versions
+  #error "The HC32 HAL is not compatible with Arduino Core versions < 1.1.0. Consider updating the Arduino Core."
+#endif

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

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

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

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

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

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

  return rc == Ok;
 }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

 #ifdef __PLAT_LINUX__
+#ifndef UNIT_TEST

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

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

+#endif // UNIT_TEST
 #endif // __PLAT_LINUX__
@@ -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
@@ -126,7 +126,7 @@
  void serialEvent2() __attribute__((weak));
 #endif
 #ifdef USING_HW_SERIAL3
-  HAL_HardwareSerial Serial3(USART3);
+  HAL_HardwareSerial HSerial3(USART3);
  void serialEvent3() __attribute__((weak));
 #endif
 #ifdef USING_HW_SERIAL4
@@ -147,11 +147,11 @@
 #endif
 #ifdef USING_HW_SERIAL6
  #ifdef USART6
-    HAL_HardwareSerial HSerial5(USART6);
+    HAL_HardwareSerial HSerial6(USART6);
  #else
-    HAL_HardwareSerial HSerial5(UART6);
+    HAL_HardwareSerial HSerial6(UART6);
  #endif
-  void serialEvent5() __attribute__((weak));
+  void serialEvent6() __attribute__((weak));
 #endif

 // Constructors ////////////////////////////////////////////////////////////////
@@ -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
@@ -58,8 +58,9 @@
 * Check for common serial pin conflicts
 */
 #define _CHECK_SERIAL_PIN(N) (( \
-    BTN_EN1 == N || DOGLCD_CS == N || HEATER_BED_PIN == N || FAN0_PIN == N || \
-    SDIO_D2_PIN == N || SDIO_D3_PIN == N || SDIO_CK_PIN == N || SDIO_CMD_PIN == N \
+    BTN_EN1 == N || BTN_EN2 == N ||DOGLCD_CS == N || HEATER_BED_PIN == N || FAN0_PIN == N || \
+    SDIO_D2_PIN == N || SDIO_D3_PIN == N || SDIO_CK_PIN == N || SDIO_CMD_PIN == N || \
+    Y_STEP_PIN == N || Y_ENABLE_PIN == N || E0_ENABLE_PIN == N || POWER_LOSS_PIN == N \
  ))
 #define CHECK_SERIAL_PIN(T,N) defined(UART##N##_##T##_PIN) && _CHECK_SERIAL_PIN(UART##N##_##T##_PIN)
 #if SERIAL_IN_USE(1)
@@ -37,50 +37,61 @@ LCD_CONTROLLER_TypeDef *TFT_FSMC::LCD;

 void TFT_FSMC::init() {
  uint32_t controllerAddress;
-  FSMC_NORSRAM_TimingTypeDef timing, extTiming;
+  FMC_OR_FSMC(NORSRAM_TimingTypeDef) timing, extTiming;

  uint32_t nsBank = (uint32_t)pinmap_peripheral(digitalPinToPinName(TFT_CS_PIN), pinMap_FSMC_CS);

  // Perform the SRAM1 memory initialization sequence
-  SRAMx.Instance = FSMC_NORSRAM_DEVICE;
-  SRAMx.Extended = FSMC_NORSRAM_EXTENDED_DEVICE;
+  SRAMx.Instance = FMC_OR_FSMC(NORSRAM_DEVICE);
+  SRAMx.Extended = FMC_OR_FSMC(NORSRAM_EXTENDED_DEVICE);
+
  // SRAMx.Init
  SRAMx.Init.NSBank = nsBank;
-  SRAMx.Init.DataAddressMux = FSMC_DATA_ADDRESS_MUX_DISABLE;
-  SRAMx.Init.MemoryType = FSMC_MEMORY_TYPE_SRAM;
-  SRAMx.Init.MemoryDataWidth = TERN(TFT_INTERFACE_FSMC_8BIT, FSMC_NORSRAM_MEM_BUS_WIDTH_8, FSMC_NORSRAM_MEM_BUS_WIDTH_16);
-  SRAMx.Init.BurstAccessMode = FSMC_BURST_ACCESS_MODE_DISABLE;
-  SRAMx.Init.WaitSignalPolarity = FSMC_WAIT_SIGNAL_POLARITY_LOW;
-  SRAMx.Init.WrapMode = FSMC_WRAP_MODE_DISABLE;
-  SRAMx.Init.WaitSignalActive = FSMC_WAIT_TIMING_BEFORE_WS;
-  SRAMx.Init.WriteOperation = FSMC_WRITE_OPERATION_ENABLE;
-  SRAMx.Init.WaitSignal = FSMC_WAIT_SIGNAL_DISABLE;
-  SRAMx.Init.ExtendedMode = FSMC_EXTENDED_MODE_ENABLE;
-  SRAMx.Init.AsynchronousWait = FSMC_ASYNCHRONOUS_WAIT_DISABLE;
-  SRAMx.Init.WriteBurst = FSMC_WRITE_BURST_DISABLE;
-  #ifdef STM32F4xx
-    SRAMx.Init.PageSize = FSMC_PAGE_SIZE_NONE;
+  SRAMx.Init.DataAddressMux     = FMC_OR_FSMC(DATA_ADDRESS_MUX_DISABLE);
+  SRAMx.Init.MemoryType         = FMC_OR_FSMC(MEMORY_TYPE_SRAM);
+  #ifdef STM32F446xx
+    SRAMx.Init.MemoryDataWidth  = TERN(TFT_INTERFACE_FMC_8BIT, FMC_NORSRAM_MEM_BUS_WIDTH_8, FMC_NORSRAM_MEM_BUS_WIDTH_16);
+  #else
+    SRAMx.Init.MemoryDataWidth  = TERN(TFT_INTERFACE_FSMC_8BIT, FSMC_NORSRAM_MEM_BUS_WIDTH_8, FSMC_NORSRAM_MEM_BUS_WIDTH_16);
  #endif
+  SRAMx.Init.BurstAccessMode    = FMC_OR_FSMC(BURST_ACCESS_MODE_DISABLE);
+  SRAMx.Init.WaitSignalPolarity = FMC_OR_FSMC(WAIT_SIGNAL_POLARITY_LOW);
+  SRAMx.Init.WrapMode           = FMC_OR_FSMC(WRAP_MODE_DISABLE);
+  SRAMx.Init.WaitSignalActive   = FMC_OR_FSMC(WAIT_TIMING_BEFORE_WS);
+  SRAMx.Init.WriteOperation     = FMC_OR_FSMC(WRITE_OPERATION_ENABLE);
+  SRAMx.Init.WaitSignal         = FMC_OR_FSMC(WAIT_SIGNAL_DISABLE);
+  SRAMx.Init.ExtendedMode       = FMC_OR_FSMC(EXTENDED_MODE_ENABLE);
+  SRAMx.Init.AsynchronousWait   = FMC_OR_FSMC(ASYNCHRONOUS_WAIT_DISABLE);
+  SRAMx.Init.WriteBurst         = FMC_OR_FSMC(WRITE_BURST_DISABLE);
+  #if defined(STM32F446xx) || defined(STM32F4xx)
+    SRAMx.Init.PageSize         = FMC_OR_FSMC(PAGE_SIZE_NONE);
+  #endif
+
  // Read Timing - relatively slow to ensure ID information is correctly read from TFT controller
-  // Can be decreases from 15-15-24 to 4-4-8 with risk of stability loss
-  timing.AddressSetupTime = 15;
-  timing.AddressHoldTime = 15;
-  timing.DataSetupTime = 24;
-  timing.BusTurnAroundDuration = 0;
-  timing.CLKDivision = 16;
-  timing.DataLatency = 17;
-  timing.AccessMode = FSMC_ACCESS_MODE_A;
+  // Can be decreased from 15-15-24 to 4-4-8 with risk of stability loss
+  timing.AddressSetupTime         = 15;
+  timing.AddressHoldTime          = 15;
+  timing.DataSetupTime            = 24;
+  timing.BusTurnAroundDuration    =  0;
+  timing.CLKDivision              = 16;
+  timing.DataLatency              = 17;
+  timing.AccessMode               = FMC_OR_FSMC(ACCESS_MODE_A);
+
  // Write Timing
  // Can be decreased from 8-15-8 to 0-0-1 with risk of stability loss
-  extTiming.AddressSetupTime = 8;
-  extTiming.AddressHoldTime = 15;
-  extTiming.DataSetupTime = 8;
-  extTiming.BusTurnAroundDuration = 0;
-  extTiming.CLKDivision = 16;
-  extTiming.DataLatency = 17;
-  extTiming.AccessMode = FSMC_ACCESS_MODE_A;
+  extTiming.AddressSetupTime      =  8;
+  extTiming.AddressHoldTime       = 15;
+  extTiming.DataSetupTime         =  8;
+  extTiming.BusTurnAroundDuration =  0;
+  extTiming.CLKDivision           = 16;
+  extTiming.DataLatency           = 17;
+  extTiming.AccessMode            = FMC_OR_FSMC(ACCESS_MODE_A);

-  __HAL_RCC_FSMC_CLK_ENABLE();
+  #ifdef STM32F446xx
+    __HAL_RCC_FMC_CLK_ENABLE();
+  #else
+    __HAL_RCC_FSMC_CLK_ENABLE();
+  #endif

  for (uint16_t i = 0; pinMap_FSMC[i].pin != NC; i++)
    pinmap_pinout(pinMap_FSMC[i].pin, pinMap_FSMC);
@@ -90,9 +101,9 @@ void TFT_FSMC::init() {
  controllerAddress = FSMC_BANK1_1;
  #ifdef PF0
    switch (nsBank) {
-      case FSMC_NORSRAM_BANK2: controllerAddress = FSMC_BANK1_2 ; break;
-      case FSMC_NORSRAM_BANK3: controllerAddress = FSMC_BANK1_3 ; break;
-      case FSMC_NORSRAM_BANK4: controllerAddress = FSMC_BANK1_4 ; break;
+      case FMC_OR_FSMC(NORSRAM_BANK2): controllerAddress = FSMC_BANK1_2; break;
+      case FMC_OR_FSMC(NORSRAM_BANK3): controllerAddress = FSMC_BANK1_3; break;
+      case FMC_OR_FSMC(NORSRAM_BANK4): controllerAddress = FSMC_BANK1_4; break;
    }
  #endif

@@ -100,49 +111,44 @@ void TFT_FSMC::init() {

  HAL_SRAM_Init(&SRAMx, &timing, &extTiming);

+  __HAL_RCC_DMA2_CLK_ENABLE();
+
  #ifdef STM32F1xx
-    __HAL_RCC_DMA1_CLK_ENABLE();
-    DMAtx.Instance = DMA1_Channel1;
+    DMAtx.Instance                = DMA2_Channel1;
  #elif defined(STM32F4xx)
-    __HAL_RCC_DMA2_CLK_ENABLE();
-    DMAtx.Instance = DMA2_Stream0;
-    DMAtx.Init.Channel = DMA_CHANNEL_0;
-    DMAtx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
-    DMAtx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
-    DMAtx.Init.MemBurst = DMA_MBURST_SINGLE;
-    DMAtx.Init.PeriphBurst = DMA_PBURST_SINGLE;
+    DMAtx.Instance                = DMA2_Stream0;
+    DMAtx.Init.Channel            = DMA_CHANNEL_0;
+    DMAtx.Init.FIFOMode           = DMA_FIFOMODE_ENABLE;
+    DMAtx.Init.FIFOThreshold      = DMA_FIFO_THRESHOLD_FULL;
+    DMAtx.Init.MemBurst           = DMA_MBURST_SINGLE;
+    DMAtx.Init.PeriphBurst        = DMA_PBURST_SINGLE;
  #endif

-  DMAtx.Init.Direction = DMA_MEMORY_TO_MEMORY;
-  DMAtx.Init.MemInc = DMA_MINC_DISABLE;
-  DMAtx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
-  DMAtx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
-  DMAtx.Init.Mode = DMA_NORMAL;
-  DMAtx.Init.Priority = DMA_PRIORITY_HIGH;
+  DMAtx.Init.Direction            = DMA_MEMORY_TO_MEMORY;
+  DMAtx.Init.MemInc               = DMA_MINC_DISABLE;
+  DMAtx.Init.PeriphDataAlignment  = DMA_PDATAALIGN_HALFWORD;
+  DMAtx.Init.MemDataAlignment     = DMA_MDATAALIGN_HALFWORD;
+  DMAtx.Init.Mode                 = DMA_NORMAL;
+  DMAtx.Init.Priority             = DMA_PRIORITY_HIGH;

  LCD = (LCD_CONTROLLER_TypeDef *)controllerAddress;
 }

 uint32_t TFT_FSMC::getID() {
-  uint32_t id;
  writeReg(0);
-  id = LCD->RAM;
-
-  if (id == 0)
-    id = readID(LCD_READ_ID);
-  if ((id & 0xFFFF) == 0 || (id & 0xFFFF) == 0xFFFF)
-    id = readID(LCD_READ_ID4);
+  uint32_t id = LCD->RAM;
+  if (id == 0) id = readID(LCD_READ_ID);
+  if ((id & 0xFFFF) == 0 || (id & 0xFFFF) == 0xFFFF) id = readID(LCD_READ_ID4);
  return id;
 }

-uint32_t TFT_FSMC::readID(const tft_data_t inReg) {
-  uint32_t id;
+uint32_t TFT_FSMC::readID(tft_data_t inReg) {
  writeReg(inReg);
-  id = LCD->RAM; // dummy read
+  uint32_t id = LCD->RAM; // dummy read
  id = inReg << 24;
  id |= (LCD->RAM & 0x00FF) << 16;
  id |= (LCD->RAM & 0x00FF) << 8;
-  id |= LCD->RAM & 0x00FF;
+  id |= (LCD->RAM & 0x00FF);
  return id;
 }

@@ -155,7 +161,9 @@ bool TFT_FSMC::isBusy() {
    #define __IS_DMA_CONFIGURED(__HANDLE__)   ((__HANDLE__)->Instance->PAR != 0)
  #endif

-  if (!__IS_DMA_CONFIGURED(&DMAtx)) return false;
+  #ifdef __IS_DMA_CONFIGURED
+    if (!__IS_DMA_CONFIGURED(&DMAtx)) return false;
+  #endif

  // Check if DMA transfer error or transfer complete flags are set
  if ((__HAL_DMA_GET_FLAG(&DMAtx, __HAL_DMA_GET_TE_FLAG_INDEX(&DMAtx)) == 0) && (__HAL_DMA_GET_FLAG(&DMAtx, __HAL_DMA_GET_TC_FLAG_INDEX(&DMAtx)) == 0)) return true;
@@ -174,8 +182,6 @@ void TFT_FSMC::transmitDMA(uint32_t memoryIncrease, uint16_t *data, uint16_t cou
  DMAtx.Init.PeriphInc = memoryIncrease;
  HAL_DMA_Init(&DMAtx);
  HAL_DMA_Start(&DMAtx, (uint32_t)data, (uint32_t)&(LCD->RAM), count);
-
-  TERN_(TFT_SHARED_IO, while (isBusy()));
 }

 void TFT_FSMC::transmit(uint32_t memoryIncrease, uint16_t *data, uint16_t count) {
@@ -28,11 +28,7 @@
 #elif defined(STM32F4xx)
  #include "stm32f4xx_hal.h"
 #else
-  #error "FSMC TFT is currently only supported on STM32F1 and STM32F4 hardware."
-#endif
-
-#ifndef HAL_SRAM_MODULE_ENABLED
-  #error "SRAM module disabled for the STM32 framework (HAL_SRAM_MODULE_ENABLED)! Please consult the development team."
+  #error "FSMC/FMC TFT is currently only supported on STM32F1 and STM32F4 hardware."
 #endif

 #ifndef LCD_READ_ID
@@ -55,6 +51,12 @@ typedef struct {
  __IO tft_data_t RAM;
 } LCD_CONTROLLER_TypeDef;

+#ifdef STM32F446xx
+  #define FMC_OR_FSMC(N) _CAT(FMC_, N)
+#else
+  #define FMC_OR_FSMC(N) _CAT(FSMC_, N)
+#endif
+
 class TFT_FSMC {
  private:
    static SRAM_HandleTypeDef SRAMx;
@@ -62,7 +64,7 @@ class TFT_FSMC {

    static LCD_CONTROLLER_TypeDef *LCD;

-    static uint32_t readID(const tft_data_t reg);
+    static uint32_t readID(tft_data_t inReg);
    static void transmit(tft_data_t data) { LCD->RAM = data; __DSB(); }
    static void transmit(uint32_t memoryIncrease, uint16_t *data, uint16_t count);
    static void transmitDMA(uint32_t memoryIncrease, uint16_t *data, uint16_t count);
@@ -94,7 +96,11 @@ class TFT_FSMC {
 #ifdef STM32F1xx
  #define FSMC_PIN_DATA   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, AFIO_NONE)
 #elif defined(STM32F4xx)
-  #define FSMC_PIN_DATA   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF12_FSMC)
+  #ifdef STM32F446xx
+    #define FSMC_PIN_DATA   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF12_FMC)
+  #else
+    #define FSMC_PIN_DATA   STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF12_FSMC)
+  #endif
  #define FSMC_BANK1_1    0x60000000U
  #define FSMC_BANK1_2    0x64000000U
  #define FSMC_BANK1_3    0x68000000U
@@ -104,35 +110,35 @@ class TFT_FSMC {
 #endif

 const PinMap pinMap_FSMC[] = {
-  {PD_14,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D00
-  {PD_15,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D01
-  {PD_0,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D02
-  {PD_1,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D03
-  {PE_7,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D04
-  {PE_8,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D05
-  {PE_9,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D06
-  {PE_10,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D07
+  {PD_14,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D00
+  {PD_15,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D01
+  {PD_0,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D02
+  {PD_1,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D03
+  {PE_7,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D04
+  {PE_8,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D05
+  {PE_9,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D06
+  {PE_10,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D07
  #if DISABLED(TFT_INTERFACE_FSMC_8BIT)
-    {PE_11,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D08
-    {PE_12,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D09
-    {PE_13,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D10
-    {PE_14,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D11
-    {PE_15,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D12
-    {PD_8,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D13
-    {PD_9,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D14
-    {PD_10,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D15
+    {PE_11,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D08
+    {PE_12,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D09
+    {PE_13,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D10
+    {PE_14,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D11
+    {PE_15,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D12
+    {PD_8,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D13
+    {PD_9,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D14
+    {PD_10,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D15
  #endif
-  {PD_4,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_NOE
-  {PD_5,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_NWE
+  {PD_4,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_NOE
+  {PD_5,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_NWE
  {NC,    NP,    0}
 };

 const PinMap pinMap_FSMC_CS[] = {
-  {PD_7,  (void *)FSMC_NORSRAM_BANK1, FSMC_PIN_DATA}, // FSMC_NE1
+  {PD_7,  (void *)FMC_OR_FSMC(NORSRAM_BANK1), FSMC_PIN_DATA}, // FSMC_NE1
  #ifdef PF0
-    {PG_9,  (void *)FSMC_NORSRAM_BANK2, FSMC_PIN_DATA}, // FSMC_NE2
-    {PG_10, (void *)FSMC_NORSRAM_BANK3, FSMC_PIN_DATA}, // FSMC_NE3
-    {PG_12, (void *)FSMC_NORSRAM_BANK4, FSMC_PIN_DATA}, // FSMC_NE4
+    {PG_9,  (void *)FMC_OR_FSMC(NORSRAM_BANK2), FSMC_PIN_DATA}, // FSMC_NE2
+    {PG_10, (void *)FMC_OR_FSMC(NORSRAM_BANK3), FSMC_PIN_DATA}, // FSMC_NE3
+    {PG_12, (void *)FMC_OR_FSMC(NORSRAM_BANK4), FSMC_PIN_DATA}, // FSMC_NE4
  #endif
  {NC,    NP,    0}
 };
@@ -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)

@@ -77,8 +77,6 @@
  #include "lcd/e3v2/common/encoder.h"
  #if ENABLED(DWIN_CREALITY_LCD)
    #include "lcd/e3v2/creality/dwin.h"
-  #elif ENABLED(DWIN_LCD_PROUI)
-    #include "lcd/e3v2/proui/dwin.h"
  #elif ENABLED(DWIN_CREALITY_LCD_JYERSUI)
    #include "lcd/e3v2/jyersui/dwin.h"
  #endif
@@ -263,12 +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
@@ -310,23 +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;
 }

@@ -390,8 +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());
    }
@@ -476,11 +467,16 @@ inline void manage_inactivity(const bool no_stepper_sleep=false) {

  #if HAS_KILL

-    // Check if the kill button was pressed and wait just in case it was an accidental
-    // key kill key press
+    // Check if the kill button was pressed and wait to ensure the signal is not noise
+    // typically caused by poor insulation and grounding on LCD cables.
+    // Lower numbers here will increase response time and therefore safety rating.
+    // It is recommended to set this as low as possibe without false triggers.
    // -------------------------------------------------------------------------------
+    #ifndef KILL_DELAY
+      #define KILL_DELAY 250
+    #endif
+
    static int killCount = 0;   // make the inactivity button a bit less responsive
-    const int KILL_DELAY = 750;
    if (kill_state())
      killCount++;
    else if (killCount > 0)
@@ -671,6 +667,12 @@ inline void manage_inactivity(const bool no_stepper_sleep=false) {

  TERN_(HOTEND_IDLE_TIMEOUT, hotend_idle.check());

+  #if ANY(PSU_CONTROL, AUTO_POWER_CONTROL) && PIN_EXISTS(PS_ON_EDM)
+    if ( ELAPSED(ms, powerManager.last_state_change_ms + PS_EDM_RESPONSE)
+      && (READ(PS_ON_PIN) != READ(PS_ON_EDM_PIN) || TERN0(PSU_OFF_REDUNDANT, extDigitalRead(PS_ON1_PIN) != extDigitalRead(PS_ON1_EDM_PIN)))
+    ) kill(GET_TEXT_F(MSG_POWER_EDM_FAULT));
+  #endif
+
  #if ENABLED(EXTRUDER_RUNOUT_PREVENT)
    if (thermalManager.degHotend(active_extruder) > (EXTRUDER_RUNOUT_MINTEMP)
      && ELAPSED(ms, gcode.previous_move_ms + SEC_TO_MS(EXTRUDER_RUNOUT_SECONDS))
@@ -775,7 +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));
@@ -961,7 +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;
  }
 }

@@ -1275,7 +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
@@ -1321,18 +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
@@ -1588,11 +1595,11 @@ void setup() {
    SERIAL_ECHO_TERNARY(err, "BL24CXX Check ", "failed", "succeeded", "!\n");
  #endif

-  #if HAS_DWIN_E3V2_BASIC
+  #if ENABLED(DWIN_CREALITY_LCD)
    SETUP_RUN(dwinInitScreen());
  #endif

-  #if HAS_SERVICE_INTERVALS && !HAS_DWIN_E3V2_BASIC
+  #if HAS_SERVICE_INTERVALS && DISABLED(DWIN_CREALITY_LCD)
    SETUP_RUN(ui.reset_status(true));  // Show service messages or keep current status
  #endif

@@ -1639,11 +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.
@@ -1675,7 +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();
@@ -131,6 +131,7 @@
 #define BOARD_PXMALION_CORE_I3        1164  // Pxmalion Core I3
 #define BOARD_PANOWIN_CUTLASS         1165  // Panowin Cutlass (as found in the Panowin F1)
 #define BOARD_KODAMA_BARDO            1166  // Kodama Bardo V1.x (as found in the Kodama Trinus)
+#define BOARD_DAGOMA_D6               1167  // Dagoma D6 (as found in the Dagoma DiscoUltimate V2 TMC)

 //
 // RAMBo and derivatives
@@ -382,9 +383,9 @@
 #define BOARD_CREALITY_V452           5050  // Creality v4.5.2 (STM32F103RC / STM32F103RE)
 #define BOARD_CREALITY_V453           5051  // Creality v4.5.3 (STM32F103RC / STM32F103RE)
 #define BOARD_CREALITY_V521           5052  // Creality v5.2.1 (STM32F103VE) as found in the SV04
-#define BOARD_CREALITY_V24S1          5053  // Creality v2.4.S1 (STM32F103RC / STM32F103RE) v101 as found in the Ender-7
-#define BOARD_CREALITY_V24S1_301      5054  // Creality v2.4.S1_301 (STM32F103RC / STM32F103RE) v301 as found in the Ender-3 S1
-#define BOARD_CREALITY_V25S1          5055  // Creality v2.5.S1 (STM32F103RE) as found in the CR-10 Smart Pro
+#define BOARD_CREALITY_V24S1          5053  // Creality v2.4.S1 (STM32F103RC / STM32F103RE) CR-FDM-v2.4.S1_v101 as found in the Ender-7
+#define BOARD_CREALITY_V24S1_301      5054  // Creality v2.4.S1_301 (STM32F103RC / STM32F103RE) CR-FDM-v24S1_301 as found in the Ender-3 S1
+#define BOARD_CREALITY_V25S1          5055  // Creality v2.5.S1 (STM32F103RE) CR-FDM-v2.5.S1_100 as found in the CR-10 Smart Pro
 #define BOARD_TRIGORILLA_PRO          5056  // Trigorilla Pro (STM32F103ZE)
 #define BOARD_FLY_MINI                5057  // FLYmaker FLY MINI (STM32F103RC)
 #define BOARD_FLSUN_HISPEED           5058  // FLSUN HiSpeedV1 (STM32F103VE)
@@ -459,7 +460,7 @@
 #define BOARD_OPULO_LUMEN_REV4        5242  // Opulo Lumen PnP Controller REV4 (STM32F407VE / STM32F407VG)
 #define BOARD_FYSETC_SPIDER_KING407   5243  // FYSETC Spider King407 (STM32F407ZG)
 #define BOARD_MKS_SKIPR_V1            5244  // MKS SKIPR v1.0 all-in-one board (STM32F407VE)
-#define BOARD_TRONXY_V10              5245  // TRONXY V10 (STM32F446ZE)
+#define BOARD_TRONXY_CXY_446_V10      5245  // TRONXY CXY-446-V10-220413/CXY-V6-191121 (STM32F446ZE)
 #define BOARD_CREALITY_F401RE         5246  // Creality CR4NS200141C13 (STM32F401RE) as found in the Ender-5 S1
 #define BOARD_BLACKPILL_CUSTOM        5247  // Custom board based on STM32F401CDU6.
 #define BOARD_I3DBEEZ9_V1             5248  // I3DBEEZ9 V1 (STM32F407ZG)
@@ -467,6 +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
 //
@@ -41,8 +41,6 @@
 #define _TMC2208_STANDALONE 0x2208B
 #define _TMC2209            0x2209A
 #define _TMC2209_STANDALONE 0x2209B
-#define _TMC26X             0x2600A
-#define _TMC26X_STANDALONE  0x2600B
 #define _TMC2660            0x2660A
 #define _TMC2660_STANDALONE 0x2660B
 #define _TMC5130            0x5130A
@@ -105,10 +103,11 @@

 #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(TMC26X_STANDALONE)  || HAS_DRIVER(TMC2660_STANDALONE) \
-      || HAS_DRIVER(TMC5130_STANDALONE) || HAS_DRIVER(TMC5160_STANDALONE) )
+      || HAS_DRIVER(TMC2660_STANDALONE) || HAS_DRIVER(TMC5130_STANDALONE) \
+      || HAS_DRIVER(TMC5160_STANDALONE) )
  #define HAS_TRINAMIC_STANDALONE 1
 #endif

@@ -125,13 +124,13 @@
                           || AXIS_DRIVER_TYPE(A,TMC2660) \
                           || AXIS_DRIVER_TYPE(A,TMC5130) || AXIS_DRIVER_TYPE(A,TMC5160) )

-#define AXIS_IS_TMC_CONFIG(A)   ( AXIS_IS_TMC(A) || AXIS_DRIVER_TYPE(A,TMC26X) )
+#define AXIS_IS_TMC_CONFIG AXIS_IS_TMC

 // Test for a driver that uses SPI - this allows checking whether a _CS_ pin
 // is considered sensitive
 #define AXIS_HAS_SPI(A)  (    AXIS_DRIVER_TYPE(A,TMC2130) || AXIS_DRIVER_TYPE(A,TMC2160) \
-                           || AXIS_DRIVER_TYPE(A,TMC26X)  || AXIS_DRIVER_TYPE(A,TMC2660) \
-                           || AXIS_DRIVER_TYPE(A,TMC5130) || AXIS_DRIVER_TYPE(A,TMC5160) )
+                           || AXIS_DRIVER_TYPE(A,TMC2660) || AXIS_DRIVER_TYPE(A,TMC5130) \
+                           || AXIS_DRIVER_TYPE(A,TMC5160) )

 #define AXIS_HAS_UART(A) ( AXIS_DRIVER_TYPE(A,TMC2208) || AXIS_DRIVER_TYPE(A,TMC2209) )

@@ -184,10 +183,8 @@
 #if ANY_AXIS_HAS(SPI)
  #define HAS_TMC_SPI 1
 #endif
-
-//
-// TMC26XX Stepper Drivers
-//
-#if HAS_DRIVER(TMC26X)
-  #define HAS_TMC26X 1
+#if HAS_STALLGUARD || HAS_DRIVER(TMC2160_STANDALONE) || HAS_DRIVER(TMC2130_STANDALONE) \
+                   || HAS_DRIVER(TMC2209_STANDALONE) || HAS_DRIVER(TMC2660_STANDALONE) \
+                   || HAS_DRIVER(TMC5130_STANDALONE) || HAS_DRIVER(TMC5160_STANDALONE)
+  #define HAS_DIAG_PINS 1
 #endif
@@ -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 {

@@ -449,7 +456,7 @@ struct XYval {
  // Length reduced to one dimension
  FI constexpr T magnitude()    const { return (T)sqrtf(x*x + y*y); }
  // Pointer to the data as a simple array
-  FI operator T* ()                   { return pos; }
+  explicit FI operator T* ()          { return pos; }
  // If any element is true then it's true
  FI constexpr operator bool()  const { return x || y; }
  // Smallest element
@@ -599,13 +606,13 @@ struct XYZval {
  // Length reduced to one dimension
  FI constexpr T magnitude()    const { return (T)TERN(HAS_X_AXIS, sqrtf(NUM_AXIS_GANG(x*x, + y*y, + z*z, + i*i, + j*j, + k*k, + u*u, + v*v, + w*w)), 0); }
  // Pointer to the data as a simple array
-  FI operator T* ()                   { return pos; }
+  explicit FI operator T* ()          { return pos; }
  // 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; }
@@ -747,7 +754,7 @@ struct XYZEval {
  // Length reduced to one dimension
  FI constexpr T magnitude()    const { return (T)sqrtf(LOGICAL_AXIS_GANG(+ e*e, + x*x, + y*y, + z*z, + i*i, + j*j, + k*k, + u*u, + v*v, + w*w)); }
  // Pointer to the data as a simple array
-  FI operator T* ()                   { return pos; }
+  explicit FI operator T* ()          { return pos; }
  // If any element is true then it's true
  FI constexpr operator bool()  const { return 0 LOGICAL_AXIS_GANG(|| e, || x, || y, || z, || i, || j, || k, || u, || v, || w); }
  // Smallest element
@@ -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
@@ -63,7 +63,7 @@
     */
    void mesh_bed_leveling::line_to_destination(const_feedRate_t scaled_fr_mm_s, uint8_t x_splits, uint8_t y_splits) {
      // Get current and destination cells for this line
-      xy_int8_t scel = cell_indexes(current_position), ecel = cell_indexes(destination);
+      xy_uint8_t scel = cell_indexes(current_position), ecel = cell_indexes(destination);
      NOMORE(scel.x, GRID_MAX_CELLS_X - 1);
      NOMORE(scel.y, GRID_MAX_CELLS_Y - 1);
      NOMORE(ecel.x, GRID_MAX_CELLS_X - 1);
@@ -80,7 +80,7 @@

      float normalized_dist;
      xyze_pos_t dest;
-      const int8_t gcx = _MAX(scel.x, ecel.x), gcy = _MAX(scel.y, ecel.y);
+      const uint8_t gcx = _MAX(scel.x, ecel.x), gcy = _MAX(scel.y, ecel.y);

      // Crosses on the X and not already split on this X?
      // The x_splits flags are insurance against rounding errors.
@@ -95,7 +95,7 @@ public:
  static void report_current_mesh();
  static void report_state();
  static void save_ubl_active_state_and_disable();
-  static void restore_ubl_active_state_and_leave();
+  static void restore_ubl_active_state(const bool is_done=true);
  static void display_map(const uint8_t) __O0;
  static mesh_index_pair find_closest_mesh_point_of_type(const MeshPointType, const xy_pos_t&, const bool=false, MeshFlags *done_flags=nullptr) __O0;
  static mesh_index_pair find_furthest_invalid_mesh_point() __O0;
@@ -309,7 +309,7 @@ void unified_bed_leveling::G29() {
    #if ALL(DWIN_LCD_PROUI, ZHOME_BEFORE_LEVELING)
      save_ubl_active_state_and_disable();
      gcode.process_subcommands_now(F("G28Z"));
-      restore_ubl_active_state_and_leave();
+      restore_ubl_active_state(false); // ...without telling ExtUI "done"
    #else
      // Send 'N' to force homing before G29 (internal only)
      if (axes_should_home() || parser.seen_test('N')) gcode.home_all_axes();
@@ -425,7 +425,7 @@ void unified_bed_leveling::G29() {
    if (parser.seen_test('J')) {
      save_ubl_active_state_and_disable();
      tilt_mesh_based_on_probed_grid(param.J_grid_size == 0); // Zero size does 3-Point
-      restore_ubl_active_state_and_leave();
+      restore_ubl_active_state();
      #if ENABLED(UBL_G29_J_RECENTER)
        do_blocking_move_to_xy(0.5f * ((MESH_MIN_X) + (MESH_MAX_X)), 0.5f * ((MESH_MIN_Y) + (MESH_MAX_Y)));
      #endif
@@ -754,7 +754,6 @@ void unified_bed_leveling::shift_mesh_height() {

    TERN_(HAS_MARLINUI_MENU, ui.capture());
    TERN_(EXTENSIBLE_UI, ExtUI::onLevelingStart());
-    TERN_(DWIN_LCD_PROUI, dwinLevelingStart());

    save_ubl_active_state_and_disable();  // No bed level correction so only raw data is obtained
    grid_count_t count = GRID_MAX_POINTS;
@@ -766,9 +765,8 @@ 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());
-      TERN_(DWIN_LCD_PROUI, dwinRedrawScreen());

      #if HAS_MARLINUI_MENU
        if (ui.button_pressed()) {
@@ -778,8 +776,7 @@ void unified_bed_leveling::shift_mesh_height() {
          ui.quick_feedback();
          ui.release();
          probe.stow(); // Release UI before stow to allow for PAUSE_BEFORE_DEPLOY_STOW
-          TERN_(EXTENSIBLE_UI, ExtUI::onLevelingDone());
-          return restore_ubl_active_state_and_leave();
+          return restore_ubl_active_state();
        }
      #endif

@@ -815,15 +812,12 @@ void unified_bed_leveling::shift_mesh_height() {

    probe.move_z_after_probing();

-    restore_ubl_active_state_and_leave();
-
    do_blocking_move_to_xy(
      constrain(nearby.x - probe.offset_xy.x, MESH_MIN_X, MESH_MAX_X),
      constrain(nearby.y - probe.offset_xy.y, MESH_MIN_Y, MESH_MAX_Y)
    );

-    TERN_(EXTENSIBLE_UI, ExtUI::onLevelingDone());
-    TERN_(DWIN_LCD_PROUI, dwinLevelingDone());
+    restore_ubl_active_state();
  }

 #endif // HAS_BED_PROBE
@@ -932,7 +926,7 @@ void set_message_with_feedback(FSTR_P const fstr) {
    if (param.V_verbosity > 1)
      SERIAL_ECHOLNPGM("Business Card is ", p_float_t(thickness, 4), "mm thick.");

-    restore_ubl_active_state_and_leave();
+    restore_ubl_active_state();

    return thickness;
  }
@@ -987,7 +981,7 @@ void set_message_with_feedback(FSTR_P const fstr) {
      if (_click_and_hold([]{
        SERIAL_ECHOLNPGM("\nMesh only partially populated.");
        do_z_clearance(Z_CLEARANCE_DEPLOY_PROBE);
-      })) return restore_ubl_active_state_and_leave();
+      })) return restore_ubl_active_state();

      // Store the Z position minus the shim height
      z_values[lpos.x][lpos.y] = current_position.z - thick;
@@ -1002,10 +996,8 @@ void set_message_with_feedback(FSTR_P const fstr) {

    if (do_ubl_mesh_map) display_map(param.T_map_type);  // show user where we're probing

-    restore_ubl_active_state_and_leave();
+    restore_ubl_active_state();
    do_blocking_move_to_xy_z(pos, Z_CLEARANCE_DEPLOY_PROBE);
-
-    TERN_(EXTENSIBLE_UI, ExtUI::onLevelingDone());
  }

  /**
@@ -1111,7 +1103,7 @@ void set_message_with_feedback(FSTR_P const fstr) {
    } while (lpos.x >= 0 && --param.R_repetition > 0);

    if (do_ubl_mesh_map) display_map(param.T_map_type);
-    restore_ubl_active_state_and_leave();
+    restore_ubl_active_state();

    do_blocking_move_to_xy_z(pos, Z_TWEEN_SAFE_CLEARANCE);

@@ -1263,17 +1255,20 @@ void unified_bed_leveling::save_ubl_active_state_and_disable() {
  set_bed_leveling_enabled(false);
 }

-void unified_bed_leveling::restore_ubl_active_state_and_leave() {
+void unified_bed_leveling::restore_ubl_active_state(const bool is_done/*=true*/) {
  TERN_(HAS_MARLINUI_MENU, ui.release());
  #if ENABLED(UBL_DEVEL_DEBUGGING)
    if (--ubl_state_recursion_chk) {
-      SERIAL_ECHOLNPGM("restore_ubl_active_state_and_leave() called too many times.");
+      SERIAL_ECHOLNPGM("restore_ubl_active_state() called too many times.");
      set_message_with_feedback(GET_TEXT_F(MSG_UBL_RESTORE_ERROR));
      return;
    }
  #endif
  set_bed_leveling_enabled(ubl_state_at_invocation);
-  TERN_(EXTENSIBLE_UI, ExtUI::onLevelingDone());
+
+  if (is_done) {
+    TERN_(EXTENSIBLE_UI, ExtUI::onLevelingDone());
+  }
 }

 mesh_index_pair unified_bed_leveling::find_furthest_invalid_mesh_point() {
@@ -1499,7 +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;
@@ -1555,7 +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)
    );
  }

@@ -212,6 +211,8 @@ void FWRetract::M207() {
 }

 void FWRetract::M207_report() {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
  SERIAL_ECHOLNPGM_P(
      PSTR("  M207 S"), LINEAR_UNIT(settings.retract_length)
    , PSTR(" W"), LINEAR_UNIT(settings.swap_retract_length)
@@ -237,6 +238,8 @@ void FWRetract::M208() {
 }

 void FWRetract::M208_report() {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
  SERIAL_ECHOLNPGM(
      "  M208 S", LINEAR_UNIT(settings.retract_recover_extra)
    , " W", LINEAR_UNIT(settings.swap_retract_recover_extra)
@@ -258,6 +261,8 @@ void FWRetract::M208_report() {
  }

  void FWRetract::M209_report() {
+    TERN_(MARLIN_SMALL_BUILD, return);
+
    SERIAL_ECHOLNPGM("  M209 S", AS_DIGIT(autoretract_enabled));
  }

@@ -186,18 +186,18 @@ void HostUI::action(FSTR_P const fstr, const bool eol) {
        switch (response) {

          case 0: // "Purge More" button
-            #if ALL(M600_PURGE_MORE_RESUMABLE, ADVANCED_PAUSE_FEATURE)
+            #if ENABLED(M600_PURGE_MORE_RESUMABLE)
              pause_menu_response = PAUSE_RESPONSE_EXTRUDE_MORE;  // Simulate menu selection (menu exits, doesn't extrude more)
            #endif
            break;

          case 1: // "Continue" / "Disable Runout" button
-            #if ALL(M600_PURGE_MORE_RESUMABLE, ADVANCED_PAUSE_FEATURE)
+            #if ENABLED(M600_PURGE_MORE_RESUMABLE)
              pause_menu_response = PAUSE_RESPONSE_RESUME_PRINT;  // Simulate menu selection
            #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
@@ -32,7 +32,9 @@ typedef struct {
    timeout       = HOTEND_IDLE_TIMEOUT_SEC;
    trigger       = HOTEND_IDLE_MIN_TRIGGER;
    nozzle_target = HOTEND_IDLE_NOZZLE_TARGET;
-    bed_target    = HOTEND_IDLE_BED_TARGET;
+    #if HAS_HEATED_BED
+      bed_target  = HOTEND_IDLE_BED_TARGET;
+    #endif
  }
 } hotend_idle_settings_t;

@@ -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)
@@ -56,7 +56,7 @@ public:

  #if HAS_TEMP_HOTEND || HAS_HEATED_BED || HAS_HEATED_CHAMBER
    static void onHeatingDone()             { leds.set_white(); }
-    static void onPidTuningDone(LEDColor c) { leds.set_color(c); }
+    static void onPIDTuningDone(LEDColor c) { leds.set_color(c); }
  #endif

  #if HAS_MEDIA
@@ -72,6 +72,26 @@
  uint16_t CodeProfiler::call_count = 0;
 #endif

+#if defined(MAX7219_DEBUG_PLANNER_HEAD) && defined(MAX7219_DEBUG_PLANNER_TAIL) && MAX7219_DEBUG_PLANNER_HEAD == MAX7219_DEBUG_PLANNER_TAIL
+  static int16_t last_head_cnt = 0xF, last_tail_cnt = 0xF;
+#else
+  #ifdef MAX7219_DEBUG_PLANNER_HEAD
+    static int16_t last_head_cnt = 0x1;
+  #endif
+  #ifdef MAX7219_DEBUG_PLANNER_TAIL
+    static int16_t last_tail_cnt = 0x1;
+  #endif
+#endif
+#ifdef MAX7219_DEBUG_PLANNER_QUEUE
+  static int16_t last_depth = 0;
+#endif
+#ifdef MAX7219_DEBUG_PROFILE
+  static uint8_t last_time_fraction = 0;
+#endif
+#ifdef MAX7219_DEBUG_MULTISTEPPING
+  static uint8_t last_multistepping = 0;
+#endif
+
 Max7219 max7219;

 uint8_t Max7219::led_line[MAX7219_LINES]; // = { 0 };
@@ -550,6 +570,29 @@ void Max7219::init() {
  #if MAX7219_INIT_TEST
    start_test_pattern();
  #endif
+
+  #ifdef MAX7219_REINIT_ON_POWERUP
+    #if defined(MAX7219_DEBUG_PLANNER_HEAD) && defined(MAX7219_DEBUG_PLANNER_TAIL) && MAX7219_DEBUG_PLANNER_HEAD == MAX7219_DEBUG_PLANNER_TAIL
+      last_head_cnt = 0xF;
+      last_tail_cnt = 0xF;
+    #else
+      #ifdef MAX7219_DEBUG_PLANNER_HEAD
+        last_head_cnt = 0x1;
+      #endif
+      #ifdef MAX7219_DEBUG_PLANNER_TAIL
+        last_tail_cnt = 0x1;
+      #endif
+    #endif
+    #ifdef MAX7219_DEBUG_PLANNER_QUEUE
+      last_depth = 0;
+    #endif
+    #ifdef MAX7219_DEBUG_PROFILE
+      last_time_fraction = 0;
+    #endif
+    #ifdef MAX7219_DEBUG_MULTISTEPPING
+      last_multistepping = 0;
+    #endif
+  #endif
 }

 /**
@@ -676,8 +719,6 @@ void Max7219::idle_tasks() {

  #if defined(MAX7219_DEBUG_PLANNER_HEAD) && defined(MAX7219_DEBUG_PLANNER_TAIL) && MAX7219_DEBUG_PLANNER_HEAD == MAX7219_DEBUG_PLANNER_TAIL

-    static int16_t last_head_cnt = 0xF, last_tail_cnt = 0xF;
-
    if (last_head_cnt != head || last_tail_cnt != tail) {
      range16(MAX7219_DEBUG_PLANNER_HEAD, last_tail_cnt, tail, last_head_cnt, head, &row_change_mask);
      last_head_cnt = head;
@@ -687,7 +728,6 @@ void Max7219::idle_tasks() {
  #else

    #ifdef MAX7219_DEBUG_PLANNER_HEAD
-      static int16_t last_head_cnt = 0x1;
      if (last_head_cnt != head) {
        mark16(MAX7219_DEBUG_PLANNER_HEAD, last_head_cnt, head, &row_change_mask);
        last_head_cnt = head;
@@ -695,7 +735,6 @@ void Max7219::idle_tasks() {
    #endif

    #ifdef MAX7219_DEBUG_PLANNER_TAIL
-      static int16_t last_tail_cnt = 0x1;
      if (last_tail_cnt != tail) {
        mark16(MAX7219_DEBUG_PLANNER_TAIL, last_tail_cnt, tail, &row_change_mask);
        last_tail_cnt = tail;
@@ -714,7 +753,6 @@ void Max7219::idle_tasks() {
  #endif

  #ifdef MAX7219_DEBUG_PROFILE
-    static uint8_t last_time_fraction = 0;
    const uint8_t current_time_fraction = (uint16_t(CodeProfiler::get_time_fraction()) * MAX7219_NUMBER_UNITS + 8) / 16;
    if (current_time_fraction != last_time_fraction) {
      quantity(MAX7219_DEBUG_PROFILE, last_time_fraction, current_time_fraction, &row_change_mask);
@@ -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
--- a/Show More
+++ b/Show More