move G29 stuff to #27146

Followup to #27118

.github/lock.yml

@@ -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-# Label to add before locking, such as `outdated`.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-#   lockLabel: outdated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

.github/workflows/bump-date.yml

@@ -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
 

.github/workflows/ci-build-tests.yml

@@ -1,9 +1,9 @@
 #
-# test-builds.yml
+# ci-build-tests.yml
 # Do test builds to catch compile errors
 #
 
-name: CI
+name: CI - Build Tests
 
 on:
   pull_request:
@@ -14,6 +14,8 @@ on:
     - config/**
     - data/**
     - docs/**
+    - test/**
+    - Marlin/tests/**
     - '**/*.md'
   push:
     branches:
@@ -23,11 +25,13 @@ on:
     - config/**
     - data/**
     - docs/**
+    - test/**
+    - Marlin/tests/**
     - '**/*.md'
 
 jobs:
   test_builds:
-    name: Run All Tests
+    name: Build Test
     if: github.repository == 'MarlinFirmware/Marlin'
 
     runs-on: ubuntu-latest
@@ -152,7 +156,7 @@ 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 +164,13 @@ 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'

.github/workflows/ci-unit-tests.yml

@@ -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

.github/workflows/ci-validate-pins.yml

@@ -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

.github/workflows/clean-closed.yml

@@ -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:

.github/workflows/close-stale.yml

@@ -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: |

.github/workflows/lock-closed.yml

@@ -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-inactive-days: '60'
-        issue-exclude-created-before: ''
+        exclude-issue-created-before: ''
-        issue-exclude-labels: 'no-locking'
+        exclude-any-issue-labels: 'no-locking'
-        issue-lock-labels: ''
+        add-issue-labels: ''
-        issue-lock-comment: >
+        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.

Makefile

@@ -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)

Marlin/Configuration.h

@@ -135,9 +135,9 @@
  * 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,
+ *          TMC2660, TMC2660_STANDALONE, TMC5130, TMC5130_STANDALONE,
- *          TMC5130, TMC5130_STANDALONE, TMC5160, TMC5160_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']
+ * :['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 +401,18 @@
   //#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_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 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 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 +672,7 @@
  * 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 +1015,6 @@
     // 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 +1033,19 @@
   #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_1 120     // (mm)
-  #define TPARA_LINKAGE_2 120       // (mm)
+  #define TPARA_LINKAGE_2 120     // (mm)
 
-  // SCARA tower offset (position of Tower relative to bed zero position)
+  // 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 SCARA space.
+  // 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_X    0     // (mm)
-  #define TPARA_OFFSET_Y    0       // (mm)
+  #define TPARA_OFFSET_Y    0     // (mm)
-  #define TPARA_OFFSET_Z    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
@@ -2216,7 +2218,7 @@
 #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)
@@ -2634,9 +2636,9 @@
 #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
 
@@ -3414,7 +3416,6 @@
   #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.
 
   #define TOUCH_SCREEN_CALIBRATION
 

Marlin/Configuration_adv.h

@@ -1185,33 +1185,32 @@
  * 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>:
+ * 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.
  */
 //#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_FREQ_X  40.0        // (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_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_FREQ_Y  40.0        // (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_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 +1269,11 @@
  * 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
 
 //
@@ -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
+ * Display Sleep
-// Requires a display with a controllable backlight
+ * 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
 
 //
@@ -2702,7 +2697,7 @@
  * 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
@@ -2957,15 +2952,12 @@
  *    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 +2971,7 @@
     #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 +3464,7 @@
    */
   #define TMC_ADV() {  }
 
-#endif // HAS_TRINAMIC_CONFIG || HAS_TMC26X
+#endif // HAS_TRINAMIC_CONFIG
 
 // @section i2cbus
 
@@ -3565,7 +3557,7 @@
  * 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 +4260,8 @@
 
 /**
  * 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 +4308,7 @@
                                           // 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 +4342,7 @@
  * 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 +4525,6 @@
 
 // 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

Marlin/Version.h

@@ -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 "2024-05-29"
 
 /**
  * Defines a generic printer name to be output to the LCD after booting Marlin.

Marlin/src/HAL/AVR/HAL.h

@@ -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

Marlin/src/HAL/AVR/MarlinSerial.cpp

@@ -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.

Marlin/src/HAL/AVR/MarlinSerial.h

@@ -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
 

Marlin/src/HAL/DUE/fastio/G2_PWM.cpp

@@ -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

Marlin/src/HAL/DUE/usb/sd_mmc_spi_mem.cpp

@@ -18,30 +18,30 @@ extern "C" {
 void sd_mmc_spi_mem_init() {
 }
 
-Ctrl_status sd_mmc_spi_test_unit_ready() {
+inline bool media_ready() {
-  #ifdef DISABLE_DUE_SD_MMC
+  return IS_SD_INSERTED() && !IS_SD_PRINTING() && !IS_SD_FILE_OPEN() && card.isMounted();
-    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;
 }
 
 bool sd_mmc_spi_unload(bool) { return true; }
 
 bool sd_mmc_spi_wr_protect() { return false; }
 
-bool sd_mmc_spi_removal() {
+bool sd_mmc_spi_removal() { return !media_ready(); }
-  return (!IS_SD_INSERTED() || IS_SD_PRINTING() || IS_SD_FILE_OPEN() || !card.isMounted());
+
+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())
+  if (!media_ready()) return CTRL_NO_PRESENT;
-    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())
+  if (!media_ready()) return CTRL_NO_PRESENT;
-    return CTRL_NO_PRESENT;
 
   #ifdef DEBUG_MMC
   {

Marlin/src/HAL/DUE/usb/sd_mmc_spi_mem.h

@@ -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
 

Marlin/src/HAL/HC32/HAL.h

@@ -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
 //

Marlin/src/HAL/HC32/MarlinHAL.cpp

@@ -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

Marlin/src/HAL/HC32/MarlinSerial.cpp

@@ -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);
+// serial port where RX uses DMA and TX uses IRQs
-DEFINE_HWSERIAL_MARLIN(MSerial2, 2);
+// 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

Marlin/src/HAL/HC32/MarlinSerial.h

@@ -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);
+      #if defined(UART_RX_IRQ_PRIO)
-      NVIC_SetPriority(c_dev()->interrupts.rx_error.interrupt_number, UART_IRQ_PRIO);
+        NVIC_SetPriority(c_dev()->interrupts.rx_data_available.interrupt_number, UART_RX_IRQ_PRIO);
-      NVIC_SetPriority(c_dev()->interrupts.tx_buffer_empty.interrupt_number, UART_IRQ_PRIO);
+        NVIC_SetPriority(c_dev()->interrupts.rx_error.interrupt_number, UART_RX_IRQ_PRIO);
-      NVIC_SetPriority(c_dev()->interrupts.tx_complete.interrupt_number, UART_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;

Marlin/src/HAL/HC32/app_config.h

@@ -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_

Marlin/src/HAL/HC32/endstop_interrupts.cpp

@@ -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);
 
@@ -81,6 +96,9 @@ void setup_endstop_interrupts() {
   SETUP(Z3_MAX);
   SETUP(Z3_MIN);
 
+  SETUP(Z4_MAX);
+  SETUP(Z4_MIN);
+
   SETUP(Z_MIN_PROBE);
 
   #undef SETUP
@@ -88,7 +106,7 @@ void setup_endstop_interrupts() {
 
 // 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)
 #if ENDSTOPS_INTERRUPTS_COUNT > 10
   #error "Too many endstop interrupts! HC32F460 only supports 10 endstop interrupts."
 #elif ENDSTOPS_INTERRUPTS_COUNT == 0

Marlin/src/HAL/HC32/inc/SanityCheck.h

@@ -20,6 +20,20 @@
  *
  */
 #pragma once
+#include <core_util.h>
+
+#if !defined(ARDUINO_CORE_VERSION_INT) || !defined(GET_VERSION_INT)
+  // version macros were introduced in arduino core version 1.1.0
+  // below that version, we polyfill them
+  #define GET_VERSION_INT(major, minor, patch) ((major * 100000) + (minor * 1000) + patch)
+  #define ARDUINO_CORE_VERSION_INT GET_VERSION_INT(1, 0, 0)
+#endif
+
+#if ARDUINO_CORE_VERSION_INT < GET_VERSION_INT(1, 1, 0)
+  // because we use app_config.h introduced in arduino core version 1.1.0, the
+  // HAL is not compatible with older versions
+  #error "The HC32 HAL is not compatible with Arduino Core versions < 1.1.0. Consider updating the Arduino Core."
+#endif
 
 #ifndef BOARD_XTAL_FREQUENCY
   #error "BOARD_XTAL_FREQUENCY is required for HC32F460."
@@ -74,3 +88,18 @@
     #error "HC32 HAL uses a custom panic handler. Do not define PANIC_USARTx_TX_PIN."
   #endif
 #endif
+
+#if ENABLED(SERIAL_DMA)
+  #if !defined(USART_RX_DMA_SUPPORT)
+    #error "SERIAL_DMA requires USART_RX_DMA_SUPPORT to be enabled in the arduino core."
+  #endif
+
+  // USART_RX_DMA_SUPPORT does not implement core_hook_usart_rx_irq, which is required for the emergency parser
+  #if ENABLED(EMERGENCY_PARSER)
+    #error "EMERGENCY_PARSER is not supported with SERIAL_DMA. Please disable either SERIAL_DMA or EMERGENCY_PARSER."
+  #endif
+
+  #if ARDUINO_CORE_VERSION_INT < GET_VERSION_INT(1, 1, 0)
+    #error "SERIAL_DMA is not supported with arduino core version < 1.1.0."
+  #endif
+#endif

Marlin/src/HAL/HC32/sdio.cpp

@@ -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;
-
+  //handle->pstcCardInitCfg = cardConf; // assigned in SDCARD_Init
-  // 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,
-  };
 
   // 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(handle != nullptr, "SDIO not initialized", return false);
-  CORE_ASSERT(dst != NULL, "SDIO_ReadBlock dst is NULL");
+  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(handle != nullptr, "SDIO not initialized", return false);
-  CORE_ASSERT(src != NULL, "SDIO_WriteBlock src is NULL");
+  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);

Marlin/src/HAL/HC32/sysclock.cpp

@@ -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)
+      .enPclk2Div = ClkSysclkDiv8, // PCLK2 = 25 MHz (ADC)
-      .enPclk3Div = ClkSysclkDiv4, // PCLK3 = 50 MHz (I2C, WDT)
+      .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(sysclock);
-  power_mode_update_pre(POWER_MODE_SYSTEM_CLOCK);
 
   // Switch to MPLL as sysclk source
   CLK_SetSysClkSource(CLKSysSrcMPLL);
 
   // Set power mode
-  power_mode_update_post(POWER_MODE_SYSTEM_CLOCK);
+  power_mode_update_post(sysclock);
-  #undef POWER_MODE_SYSTEM_CLOCK
 }
 
 #endif // ARDUINO_ARCH_HC32

Marlin/src/HAL/HC32/timers.h

@@ -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
+ * HAL_TIMER_RATE must be known at compile time since it's used to calculate
-//       as a workaround, PCLK1 = 50MHz is assumed (check with clock dump in MarlinHAL::init())
+ * STEPPER_TIMER_RATE, which is used in 'constexpr' calculations.
-#define HAL_TIMER_RATE 50000000 // 50MHz
+ * On the HC32F460 the timer rate depends on PCLK1, which is derived from the
-// #define HAL_TIMER_RATE TIMER0_BASE_FREQUENCY
+ * 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
-// TODO: CYCLES_PER_MICROSECOND seems to be used by Marlin to calculate the number of cycles per microsecond in the timer ISRs
+ * as F_CPU with a divider of 4 in 'sysclock.cpp::core_hook_sysclock_init'.
-//       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
+ * If you face issues with this assumption, please double-check with the values
-#define CYCLES_PER_MICROSECOND (HAL_TIMER_RATE / 1000000UL)
+ * 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_NUM        (&temp_timer)
-#define TEMP_TIMER_PRIORITY DDL_IRQ_PRIORITY_02
+#define TEMP_TIMER_PRIORITY   DDL_IRQ_PRIORITY_02
-#define TEMP_TIMER_PRESCALE 16ul
+#define TEMP_TIMER_PRESCALE     16UL          // 12.5MHz
-#define TEMP_TIMER_RATE 1000                 // 1kHz
+#define TEMP_TIMER_RATE       1000            // 1kHz
-#define TEMP_TIMER_FREQUENCY TEMP_TIMER_RATE // Alias for Marlin
+#define TEMP_TIMER_FREQUENCY  TEMP_TIMER_RATE // 1kHz also
 
 // Stepper timer
-#define STEP_TIMER_NUM (&step_timer)
+#define STEP_TIMER_NUM         (&step_timer)
-#define STEP_TIMER_PRIORITY DDL_IRQ_PRIORITY_01
+#define STEP_TIMER_PRIORITY    DDL_IRQ_PRIORITY_00  // Top priority, nothing else uses it
-#define STEPPER_TIMER_PRESCALE 16ul
+#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_RATE (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE) // 50MHz / 16 = 3.125MHz
+#define STEPPER_TIMER_TICKS_PER_US (STEPPER_TIMER_RATE / 1000000UL)   // Integer 3
-#define STEPPER_TIMER_TICKS_PER_US (STEPPER_TIMER_RATE / 1000000)
 
 // Pulse timer (== stepper timer)
-#define PULSE_TIMER_NUM STEP_TIMER_NUM
+#define PULSE_TIMER_NUM           STEP_TIMER_NUM
-#define PULSE_TIMER_PRESCALE STEPPER_TIMER_PRESCALE
+#define PULSE_TIMER_PRESCALE      STEPPER_TIMER_PRESCALE
-#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
+#define PULSE_TIMER_TICKS_PER_US  STEPPER_TIMER_TICKS_PER_US
 
 //
 // Channel aliases
 //
-#define MF_TIMER_TEMP TEMP_TIMER_NUM
+#define MF_TIMER_TEMP   TEMP_TIMER_NUM
-#define MF_TIMER_STEP STEP_TIMER_NUM
+#define MF_TIMER_STEP   STEP_TIMER_NUM
-#define MF_TIMER_PULSE PULSE_TIMER_NUM
+#define MF_TIMER_PULSE  PULSE_TIMER_NUM
 
 //
 // HAL functions

Marlin/src/HAL/LINUX/hardware/Timer.cpp

@@ -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) {

Marlin/src/HAL/LINUX/main.cpp

@@ -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__

Marlin/src/HAL/LPC1768/HAL.h

@@ -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

Marlin/src/HAL/STM32/HAL.h

@@ -112,7 +112,7 @@
   #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

Marlin/src/HAL/STM32/HardwareSerial.cpp

@@ -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 ////////////////////////////////////////////////////////////////

Marlin/src/HAL/STM32/MarlinSerial.h

@@ -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;

Marlin/src/HAL/STM32/inc/SanityCheck.h

@@ -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 || \
+    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 \
+    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)

Marlin/src/HAL/STM32/tft/tft_fsmc.cpp

@@ -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.Instance = FMC_OR_FSMC(NORSRAM_DEVICE);
-  SRAMx.Extended = FSMC_NORSRAM_EXTENDED_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.DataAddressMux     = FMC_OR_FSMC(DATA_ADDRESS_MUX_DISABLE);
-  SRAMx.Init.MemoryType = FSMC_MEMORY_TYPE_SRAM;
+  SRAMx.Init.MemoryType         = FMC_OR_FSMC(MEMORY_TYPE_SRAM);
-  SRAMx.Init.MemoryDataWidth = TERN(TFT_INTERFACE_FSMC_8BIT, FSMC_NORSRAM_MEM_BUS_WIDTH_8, FSMC_NORSRAM_MEM_BUS_WIDTH_16);
+  #ifdef STM32F446xx
-  SRAMx.Init.BurstAccessMode = FSMC_BURST_ACCESS_MODE_DISABLE;
+    SRAMx.Init.MemoryDataWidth  = TERN(TFT_INTERFACE_FMC_8BIT, FMC_NORSRAM_MEM_BUS_WIDTH_8, FMC_NORSRAM_MEM_BUS_WIDTH_16);
-  SRAMx.Init.WaitSignalPolarity = FSMC_WAIT_SIGNAL_POLARITY_LOW;
+  #else
-  SRAMx.Init.WrapMode = FSMC_WRAP_MODE_DISABLE;
+    SRAMx.Init.MemoryDataWidth  = TERN(TFT_INTERFACE_FSMC_8BIT, FSMC_NORSRAM_MEM_BUS_WIDTH_8, FSMC_NORSRAM_MEM_BUS_WIDTH_16);
-  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;
   #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
+  // Can be decreased from 15-15-24 to 4-4-8 with risk of stability loss
-  timing.AddressSetupTime = 15;
+  timing.AddressSetupTime         = 15;
-  timing.AddressHoldTime = 15;
+  timing.AddressHoldTime          = 15;
-  timing.DataSetupTime = 24;
+  timing.DataSetupTime            = 24;
-  timing.BusTurnAroundDuration = 0;
+  timing.BusTurnAroundDuration    =  0;
-  timing.CLKDivision = 16;
+  timing.CLKDivision              = 16;
-  timing.DataLatency = 17;
+  timing.DataLatency              = 17;
-  timing.AccessMode = FSMC_ACCESS_MODE_A;
+  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.AddressSetupTime      =  8;
-  extTiming.AddressHoldTime = 15;
+  extTiming.AddressHoldTime       = 15;
-  extTiming.DataSetupTime = 8;
+  extTiming.DataSetupTime         =  8;
-  extTiming.BusTurnAroundDuration = 0;
+  extTiming.BusTurnAroundDuration =  0;
-  extTiming.CLKDivision = 16;
+  extTiming.CLKDivision           = 16;
-  extTiming.DataLatency = 17;
+  extTiming.DataLatency           = 17;
-  extTiming.AccessMode = FSMC_ACCESS_MODE_A;
+  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 FMC_OR_FSMC(NORSRAM_BANK2): controllerAddress = FSMC_BANK1_2; break;
-      case FSMC_NORSRAM_BANK3: controllerAddress = FSMC_BANK1_3 ; break;
+      case FMC_OR_FSMC(NORSRAM_BANK3): controllerAddress = FSMC_BANK1_3; break;
-      case FSMC_NORSRAM_BANK4: controllerAddress = FSMC_BANK1_4 ; 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                = DMA2_Channel1;
-    DMAtx.Instance = DMA1_Channel1;
   #elif defined(STM32F4xx)
-    __HAL_RCC_DMA2_CLK_ENABLE();
+    DMAtx.Instance                = DMA2_Stream0;
-    DMAtx.Instance = DMA2_Stream0;
+    DMAtx.Init.Channel            = DMA_CHANNEL_0;
-    DMAtx.Init.Channel = DMA_CHANNEL_0;
+    DMAtx.Init.FIFOMode           = DMA_FIFOMODE_ENABLE;
-    DMAtx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
+    DMAtx.Init.FIFOThreshold      = DMA_FIFO_THRESHOLD_FULL;
-    DMAtx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
+    DMAtx.Init.MemBurst           = DMA_MBURST_SINGLE;
-    DMAtx.Init.MemBurst = DMA_MBURST_SINGLE;
+    DMAtx.Init.PeriphBurst        = DMA_PBURST_SINGLE;
-    DMAtx.Init.PeriphBurst = DMA_PBURST_SINGLE;
   #endif
 
-  DMAtx.Init.Direction = DMA_MEMORY_TO_MEMORY;
+  DMAtx.Init.Direction            = DMA_MEMORY_TO_MEMORY;
-  DMAtx.Init.MemInc = DMA_MINC_DISABLE;
+  DMAtx.Init.MemInc               = DMA_MINC_DISABLE;
-  DMAtx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
+  DMAtx.Init.PeriphDataAlignment  = DMA_PDATAALIGN_HALFWORD;
-  DMAtx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
+  DMAtx.Init.MemDataAlignment     = DMA_MDATAALIGN_HALFWORD;
-  DMAtx.Init.Mode = DMA_NORMAL;
+  DMAtx.Init.Mode                 = DMA_NORMAL;
-  DMAtx.Init.Priority = DMA_PRIORITY_HIGH;
+  DMAtx.Init.Priority             = DMA_PRIORITY_HIGH;
 
   LCD = (LCD_CONTROLLER_TypeDef *)controllerAddress;
 }
 
 uint32_t TFT_FSMC::getID() {
-  uint32_t id;
   writeReg(0);
-  id = LCD->RAM;
+  uint32_t id = LCD->RAM;
-
+  if (id == 0) id = readID(LCD_READ_ID);
-  if (id == 0)
+  if ((id & 0xFFFF) == 0 || (id & 0xFFFF) == 0xFFFF) id = readID(LCD_READ_ID4);
-    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 TFT_FSMC::readID(tft_data_t inReg) {
-  uint32_t id;
   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) {

Marlin/src/HAL/STM32/tft/tft_fsmc.h

@@ -28,11 +28,7 @@
 #elif defined(STM32F4xx)
   #include "stm32f4xx_hal.h"
 #else
-  #error "FSMC TFT is currently only supported on STM32F1 and STM32F4 hardware."
+  #error "FSMC/FMC 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."
 #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_14,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D00
-  {PD_15,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D01
+  {PD_15,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D01
-  {PD_0,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D02
+  {PD_0,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D02
-  {PD_1,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D03
+  {PD_1,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D03
-  {PE_7,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D04
+  {PE_7,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D04
-  {PE_8,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D05
+  {PE_8,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D05
-  {PE_9,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D06
+  {PE_9,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D06
-  {PE_10,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D07
+  {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_11,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D08
-    {PE_12,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D09
+    {PE_12,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D09
-    {PE_13,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D10
+    {PE_13,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D10
-    {PE_14,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D11
+    {PE_14,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D11
-    {PE_15,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D12
+    {PE_15,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D12
-    {PD_8,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D13
+    {PD_8,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D13
-    {PD_9,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D14
+    {PD_9,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D14
-    {PD_10,  FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D15
+    {PD_10,  FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_D15
   #endif
-  {PD_4,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_NOE
+  {PD_4,   FMC_OR_FSMC(NORSRAM_DEVICE), FSMC_PIN_DATA}, // FSMC_NOE
-  {PD_5,   FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_NWE
+  {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_9,  (void *)FMC_OR_FSMC(NORSRAM_BANK2), FSMC_PIN_DATA}, // FSMC_NE2
-    {PG_10, (void *)FSMC_NORSRAM_BANK3, FSMC_PIN_DATA}, // FSMC_NE3
+    {PG_10, (void *)FMC_OR_FSMC(NORSRAM_BANK3), FSMC_PIN_DATA}, // FSMC_NE3
-    {PG_12, (void *)FSMC_NORSRAM_BANK4, FSMC_PIN_DATA}, // FSMC_NE4
+    {PG_12, (void *)FMC_OR_FSMC(NORSRAM_BANK4), FSMC_PIN_DATA}, // FSMC_NE4
   #endif
   {NC,    NP,    0}
 };

Marlin/src/HAL/STM32F1/HAL.h

@@ -138,7 +138,7 @@
     #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

Marlin/src/MarlinCore.cpp

@@ -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
@@ -268,7 +266,7 @@ PGMSTR(M112_KILL_STR, "M112 Shutdown");
 MarlinState marlin_state = MF_INITIALIZING;
 
 // For M109 and M190, this flag may be cleared (by M108) to exit the wait loop
-bool wait_for_heatup = true;
+bool wait_for_heatup = false;
 
 // For M0/M1, this flag may be cleared (by M108) to exit the wait-for-user loop
 #if HAS_RESUME_CONTINUE
@@ -476,11 +474,16 @@ inline void manage_inactivity(const bool no_stepper_sleep=false) {
 
   #if HAS_KILL
 
-    // Check if the kill button was pressed and wait just in case it was an accidental
+    // Check if the kill button was pressed and wait to ensure the signal is not noise
-    // key kill key press
+    // 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 +674,12 @@ 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))
@@ -1588,11 +1597,11 @@ 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
 

Marlin/src/core/boards.h

@@ -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          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) v301 as found in the Ender-3 S1
+#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) as found in the CR-10 Smart Pro
+#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
 //

Marlin/src/core/drivers.h

@@ -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
@@ -107,8 +105,8 @@
 
 #if (    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(TMC2660_STANDALONE) || HAS_DRIVER(TMC5130_STANDALONE) \
-      || HAS_DRIVER(TMC5130_STANDALONE) || HAS_DRIVER(TMC5160_STANDALONE) )
+      || HAS_DRIVER(TMC5160_STANDALONE) )
   #define HAS_TRINAMIC_STANDALONE 1
 #endif
 
@@ -125,13 +123,13 @@
                            || 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,TMC2660) || AXIS_DRIVER_TYPE(A,TMC5130) \
-                           || AXIS_DRIVER_TYPE(A,TMC5130) || AXIS_DRIVER_TYPE(A,TMC5160) )
+                           || AXIS_DRIVER_TYPE(A,TMC5160) )
 
 #define AXIS_HAS_UART(A) ( AXIS_DRIVER_TYPE(A,TMC2208) || AXIS_DRIVER_TYPE(A,TMC2209) )
 
@@ -184,10 +182,8 @@
 #if ANY_AXIS_HAS(SPI)
   #define HAS_TMC_SPI 1
 #endif
-
+#if HAS_STALLGUARD || HAS_DRIVER(TMC2160_STANDALONE) || HAS_DRIVER(TMC2130_STANDALONE) \
-//
+                   || HAS_DRIVER(TMC2209_STANDALONE) || HAS_DRIVER(TMC2660_STANDALONE) \
-// TMC26XX Stepper Drivers
+                   || HAS_DRIVER(TMC5130_STANDALONE) || HAS_DRIVER(TMC5160_STANDALONE)
-//
+  #define HAS_DIAG_PINS 1
-#if HAS_DRIVER(TMC26X)
-  #define HAS_TMC26X 1
 #endif

Marlin/src/core/language.h

@@ -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: "

Marlin/src/core/macros.h

@@ -89,7 +89,8 @@
 #define HYPOT2(x,y) (sq(x)+sq(y))
 #define NORMSQ(x,y,z) (sq(x)+sq(y)+sq(z))
 
-#define CIRCLE_AREA(R) (float(M_PI) * sq(float(R)))
+#define FLOAT_SQ(I) 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 +197,8 @@
 #define ENABLED(V...)       DO(ENA,&&,V)
 #define DISABLED(V...)      DO(DIS,&&,V)
 #define ANY(V...)          !DISABLED(V)
-#define ALL                 ENABLED
+#define ALL(V...)           ENABLED(V)
-#define NONE                DISABLED
+#define NONE(V...)          DISABLED(V)
 #define COUNT_ENABLED(V...) DO(ENA,+,V)
 #define MANY(V...)          (COUNT_ENABLED(V) > 1)
 
@@ -629,7 +630,7 @@
 #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))

Marlin/src/core/mstring.h

@@ -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;
   }

Marlin/src/core/serial.h

@@ -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; }

Marlin/src/core/types.h

@@ -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); }

Marlin/src/feature/bedlevel/bdl/bdl.cpp

@@ -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 S<#> : Set adjustable Z height in 0.1mm units (10ths of a mm)
-// 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'.)
+ *             (e.g., 'M102 S4' enables adjusting for Z <= 0.4mm)
-// M102 S-1   Read sensor information
+ * 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

Marlin/src/feature/bedlevel/mbl/mesh_bed_leveling.cpp

@@ -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.

Marlin/src/feature/bedlevel/ubl/ubl.h

@@ -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;

Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp

@@ -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();
-          return restore_ubl_active_state_and_leave();
         }
       #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());
+    restore_ubl_active_state();
-    TERN_(DWIN_LCD_PROUI, dwinLevelingDone());
   }
 
 #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
 

Marlin/src/feature/fwretract.cpp

@@ -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)
+      MUL_TERN(RETRACT_SYNC_MIXING, swapping ? settings.swap_retract_recover_feedrate_mm_s : settings.retract_recover_feedrate_mm_s, MIXING_STEPPERS)
-      * TERN1(RETRACT_SYNC_MIXING, (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));
   }
 

Marlin/src/feature/host_actions.cpp

@@ -186,13 +186,13 @@ 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

Marlin/src/feature/hotend_idle.h

@@ -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;
 

Marlin/src/feature/leds/neopixel.h

@@ -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)

Marlin/src/feature/leds/printer_event_leds.h

@@ -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

Marlin/src/feature/max7219.cpp

@@ -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);

Marlin/src/feature/pause.cpp

@@ -23,6 +23,8 @@
 /**
  * feature/pause.cpp - Pause feature support functions
  * This may be combined with related G-codes if features are consolidated.
+ *
+ * Note: Calls to ui.pause_show_message are passed to either ExtUI or MarlinUI.
  */
 
 #include "../inc/MarlinConfigPre.h"
@@ -60,8 +62,6 @@
 
 #if ENABLED(EXTENSIBLE_UI)
   #include "../lcd/extui/ui_api.h"
-#elif ENABLED(DWIN_LCD_PROUI)
-  #include "../lcd/e3v2/proui/dwin.h"
 #endif
 
 #include "../lcd/marlinui.h"
@@ -148,7 +148,7 @@ static bool ensure_safe_temperature(const bool wait=true, const PauseMode mode=P
       thermalManager.setTargetHotend(thermalManager.extrude_min_temp, active_extruder);
   #endif
 
-  ui.pause_show_message(PAUSE_MESSAGE_HEATING, mode); UNUSED(mode);
+  ui.pause_show_message(PAUSE_MESSAGE_HEATING, mode);
 
   if (wait) return thermalManager.wait_for_hotend(active_extruder);
 
@@ -288,8 +288,8 @@ bool load_filament(const_float_t slow_load_length/*=0*/, const_float_t fast_load
           // Show "Purge More" / "Resume" menu and wait for reply
           KEEPALIVE_STATE(PAUSED_FOR_USER);
           wait_for_user = false;
-          #if ANY(HAS_MARLINUI_MENU, DWIN_LCD_PROUI)
+          #if ANY(HAS_MARLINUI_MENU, EXTENSIBLE_UI)
-            ui.pause_show_message(PAUSE_MESSAGE_OPTION); // Also sets PAUSE_RESPONSE_WAIT_FOR
+            ui.pause_show_message(PAUSE_MESSAGE_OPTION); // MarlinUI and MKS UI also set PAUSE_RESPONSE_WAIT_FOR
           #else
             pause_menu_response = PAUSE_RESPONSE_WAIT_FOR;
           #endif

Marlin/src/feature/pause.h

@@ -52,10 +52,12 @@ enum PauseMessage : char {
   PAUSE_MESSAGE_RESUME,
   PAUSE_MESSAGE_HEAT,
   PAUSE_MESSAGE_HEATING,
-  PAUSE_MESSAGE_STATUS
+  PAUSE_MESSAGE_STATUS,
+  PAUSE_MESSAGE_COUNT
 };
 
 #if M600_PURGE_MORE_RESUMABLE
+  // Input methods can Purge More, Resume, or request input
   enum PauseMenuResponse : char {
     PAUSE_RESPONSE_WAIT_FOR,
     PAUSE_RESPONSE_EXTRUDE_MORE,
@@ -105,7 +107,7 @@ void wait_for_confirmation(
 void resume_print(
   const_float_t   slow_load_length=0,                         // (mm) Slow Load Length for finishing move
   const_float_t   fast_load_length=0,                         // (mm) Fast Load Length for initial move
-  const_float_t   extrude_length=ADVANCED_PAUSE_PURGE_LENGTH, // (mm) Purge length
+  const_float_t   purge_length=ADVANCED_PAUSE_PURGE_LENGTH,   // (mm) Purge length
   const int8_t    max_beep_count=0,                           // Beep alert for attention
   const celsius_t targetTemp=0                                // (°C) A target temperature for the hotend
   DXC_PARAMS                                                  // Dual-X-Carriage extruder index
@@ -114,7 +116,7 @@ void resume_print(
 bool load_filament(
   const_float_t   slow_load_length=0,                         // (mm) Slow Load Length for finishing move
   const_float_t   fast_load_length=0,                         // (mm) Fast Load Length for initial move
-  const_float_t   extrude_length=0,                           // (mm) Purge length
+  const_float_t   purge_length=0,                             // (mm) Purge length
   const int8_t    max_beep_count=0,                           // Beep alert for attention
   const bool      show_lcd=false,                             // Set LCD status messages?
   const bool      pause_for_user=false,                       // Pause for user before returning?

Marlin/src/feature/power.cpp

@@ -34,6 +34,10 @@
 #include "../module/temperature.h"
 #include "../MarlinCore.h"
 
+#if ENABLED(MAX7219_REINIT_ON_POWERUP)
+  #include "max7219.h"
+#endif
+
 #if ENABLED(PS_OFF_SOUND)
   #include "../libs/buzzer.h"
 #endif
@@ -60,6 +64,10 @@ bool Power::psu_on;
   millis_t Power::lastPowerOn;
 #endif
 
+#if PSU_TRACK_STATE_MS
+  millis_t Power::last_state_change_ms = 0;
+#endif
+
 /**
  * Initialize pins & state for the power manager.
  *
@@ -87,9 +95,18 @@ void Power::power_on() {
   #endif
 
   OUT_WRITE(PS_ON_PIN, PSU_ACTIVE_STATE);
+  #if ENABLED(PSU_OFF_REDUNDANT)
+    OUT_WRITE(PS_ON1_PIN, TERN_(PSU_OFF_REDUNDANT_INVERTED, !)PSU_ACTIVE_STATE);
+  #endif
+  TERN_(PSU_TRACK_STATE_MS, last_state_change_ms = millis());
+
   psu_on = true;
   safe_delay(PSU_POWERUP_DELAY);
+
   restore_stepper_drivers();
+
+  TERN_(MAX7219_REINIT_ON_POWERUP, max7219.init());
+
   TERN_(HAS_TRINAMIC_CONFIG, safe_delay(PSU_POWERUP_DELAY));
 
   #ifdef PSU_POWERUP_GCODE
@@ -117,6 +134,11 @@ void Power::power_off() {
   #endif
 
   OUT_WRITE(PS_ON_PIN, !PSU_ACTIVE_STATE);
+  #if ENABLED(PSU_OFF_REDUNDANT)
+    OUT_WRITE(PS_ON1_PIN, IF_DISABLED(PSU_OFF_REDUNDANT_INVERTED, !)PSU_ACTIVE_STATE);
+  #endif
+  TERN_(PSU_TRACK_STATE_MS, last_state_change_ms = millis());
+
   psu_on = false;
 
   #if ANY(POWER_OFF_TIMER, POWER_OFF_WAIT_FOR_COOLDOWN)

Marlin/src/feature/power.h

@@ -24,8 +24,11 @@
 /**
  * power.h - power control
  */
+#if PIN_EXISTS(PS_ON_EDM) || (PIN_EXISTS(PS_ON1_EDM) && ENABLED(PSU_OFF_REDUNDANT))
+  #define PSU_TRACK_STATE_MS 1
+#endif
 
-#if ANY(AUTO_POWER_CONTROL, POWER_OFF_TIMER)
+#if ANY(AUTO_POWER_CONTROL, POWER_OFF_TIMER, PSU_TRACK_STATE_MS)
   #include "../core/millis_t.h"
 #endif
 
@@ -37,6 +40,10 @@ class Power {
     static void power_on();
     static void power_off();
 
+    #if PSU_TRACK_STATE_MS
+      static millis_t last_state_change_ms;
+    #endif
+
     #if ANY(POWER_OFF_TIMER, POWER_OFF_WAIT_FOR_COOLDOWN)
       #if ENABLED(POWER_OFF_TIMER)
         static millis_t power_off_time;

Marlin/src/feature/powerloss.cpp

@@ -48,8 +48,8 @@ uint8_t PrintJobRecovery::queue_index_r;
 uint32_t PrintJobRecovery::cmd_sdpos, // = 0
          PrintJobRecovery::sdpos[BUFSIZE];
 
-#if HAS_DWIN_E3V2_BASIC
+#if HAS_PLR_UI_FLAG
-  bool PrintJobRecovery::dwin_flag; // = false
+  bool PrintJobRecovery::ui_flag_resume; // = false
 #endif
 
 #include "../sd/cardreader.h"

Marlin/src/feature/powerloss.h

@@ -151,8 +151,8 @@ class PrintJobRecovery {
     static uint32_t cmd_sdpos,        //!< SD position of the next command
                     sdpos[BUFSIZE];   //!< SD positions of queued commands
 
-    #if HAS_DWIN_E3V2_BASIC
+    #if HAS_PLR_UI_FLAG
-      static bool dwin_flag;
+      static bool ui_flag_resume;     //!< Flag the UI to show a dialog to Resume (M1000) or Cancel (M1000C)
     #endif
 
     static void init();

Marlin/src/feature/runout.cpp

@@ -68,8 +68,6 @@ bool FilamentMonitorBase::enabled = true,
 
 #if ENABLED(EXTENSIBLE_UI)
   #include "../lcd/extui/ui_api.h"
-#elif ENABLED(DWIN_LCD_PROUI)
-  #include "../lcd/e3v2/proui/dwin.h"
 #endif
 
 void event_filament_runout(const uint8_t extruder) {
@@ -88,7 +86,6 @@ void event_filament_runout(const uint8_t extruder) {
   #endif
 
   TERN_(EXTENSIBLE_UI, ExtUI::onFilamentRunout(ExtUI::getTool(extruder)));
-  TERN_(DWIN_LCD_PROUI, dwinFilamentRunout(extruder));
 
   #if ANY(HOST_PROMPT_SUPPORT, HOST_ACTION_COMMANDS, MULTI_FILAMENT_SENSOR)
     const char tool = '0' + TERN0(MULTI_FILAMENT_SENSOR, extruder);

Marlin/src/feature/stepper_driver_safety.cpp

@@ -31,7 +31,7 @@ static uint32_t axis_plug_backward = 0;
 void stepper_driver_backward_error(FSTR_P const fstr) {
   SERIAL_ERROR_START();
   SERIAL_ECHOLN(fstr, F(" driver is backward!"));
-  ui.status_printf(2, F(S_FMT S_FMT), FTOP(fstr), GET_TEXT(MSG_DRIVER_BACKWARD));
+  ui.status_printf(2, F(S_FMT S_FMT), FTOP(fstr), GET_TEXT_F(MSG_DRIVER_BACKWARD));
 }
 
 void stepper_driver_backward_check() {

Marlin/src/feature/tmc_util.cpp

@@ -763,7 +763,7 @@
         SERIAL_CHAR('\t');
         st.printLabel();
         SERIAL_CHAR('\t');
-        print_hex_long(drv_status, ':');
+        print_hex_long(drv_status, ':', true);
         if (drv_status == 0xFFFFFFFF || drv_status == 0) SERIAL_ECHOPGM("\t Bad response!");
         SERIAL_EOL();
         break;

Marlin/src/feature/tmc_util.h

@@ -144,15 +144,13 @@ class TMCMarlin : public TMC, public TMCStorage<AXIS_LETTER, DRIVER_ID> {
       #endif
     #endif
 
-    #if ANY(HAS_MARLINUI_MENU, DWIN_LCD_PROUI)
+    void refresh_stepper_current() { rms_current(this->val_mA); }
-      void refresh_stepper_current() { rms_current(this->val_mA); }
 
-      #if ENABLED(HYBRID_THRESHOLD)
+    #if ENABLED(HYBRID_THRESHOLD)
-        void refresh_hybrid_thrs() { set_pwm_thrs(this->stored.hybrid_thrs); }
+      void refresh_hybrid_thrs() { set_pwm_thrs(this->stored.hybrid_thrs); }
-      #endif
+    #endif
-      #if USE_SENSORLESS
+    #if USE_SENSORLESS
-        void refresh_homing_thrs() { homing_threshold(this->stored.homing_thrs); }
+      void refresh_homing_thrs() { homing_threshold(this->stored.homing_thrs); }
-      #endif
     #endif
 
     static constexpr int8_t sgt_min = -64,
@@ -207,12 +205,10 @@ class TMCMarlin<TMC2208Stepper, AXIS_LETTER, DRIVER_ID, AXIS_ID> : public TMC220
       }
     #endif
 
-    #if ANY(HAS_MARLINUI_MENU, DWIN_LCD_PROUI)
+    void refresh_stepper_current() { rms_current(this->val_mA); }
-      void refresh_stepper_current() { rms_current(this->val_mA); }
 
-      #if ENABLED(HYBRID_THRESHOLD)
+    #if ENABLED(HYBRID_THRESHOLD)
-        void refresh_hybrid_thrs() { set_pwm_thrs(this->stored.hybrid_thrs); }
+      void refresh_hybrid_thrs() { set_pwm_thrs(this->stored.hybrid_thrs); }
-      #endif
     #endif
 };
 
@@ -269,15 +265,13 @@ class TMCMarlin<TMC2209Stepper, AXIS_LETTER, DRIVER_ID, AXIS_ID> : public TMC220
       }
     #endif
 
-    #if ANY(HAS_MARLINUI_MENU, DWIN_LCD_PROUI)
+    void refresh_stepper_current() { rms_current(this->val_mA); }
-      void refresh_stepper_current() { rms_current(this->val_mA); }
 
-      #if ENABLED(HYBRID_THRESHOLD)
+    #if ENABLED(HYBRID_THRESHOLD)
-        void refresh_hybrid_thrs() { set_pwm_thrs(this->stored.hybrid_thrs); }
+      void refresh_hybrid_thrs() { set_pwm_thrs(this->stored.hybrid_thrs); }
-      #endif
+    #endif
-      #if USE_SENSORLESS
+    #if USE_SENSORLESS
-        void refresh_homing_thrs() { homing_threshold(this->stored.homing_thrs); }
+      void refresh_homing_thrs() { homing_threshold(this->stored.homing_thrs); }
-      #endif
     #endif
 
     static constexpr uint8_t sgt_min = 0,
@@ -315,12 +309,10 @@ class TMCMarlin<TMC2660Stepper, AXIS_LETTER, DRIVER_ID, AXIS_ID> : public TMC266
       }
     #endif
 
-    #if ANY(HAS_MARLINUI_MENU, DWIN_LCD_PROUI)
+    void refresh_stepper_current() { rms_current(this->val_mA); }
-      void refresh_stepper_current() { rms_current(this->val_mA); }
 
-      #if USE_SENSORLESS
+    #if USE_SENSORLESS
-        void refresh_homing_thrs() { homing_threshold(this->stored.homing_thrs); }
+      void refresh_homing_thrs() { homing_threshold(this->stored.homing_thrs); }
-      #endif
     #endif
 
     static constexpr int8_t sgt_min = -64,

Marlin/src/gcode/bedlevel/G26.cpp

@@ -532,7 +532,7 @@ void GcodeSuite::G26() {
 
     if (bedtemp) {
       if (!WITHIN(bedtemp, 40, BED_MAX_TARGET)) {
-        SERIAL_ECHOLNPGM("?Specified bed temperature not plausible (40-", BED_MAX_TARGET, "C).");
+        SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Specified bed temperature not plausible (40-", BED_MAX_TARGET, "C)."));
         return;
       }
       g26.bed_temp = bedtemp;
@@ -543,7 +543,7 @@ void GcodeSuite::G26() {
   if (parser.seenval('L')) {
     g26.layer_height = parser.value_linear_units();
     if (!WITHIN(g26.layer_height, 0.0, 2.0)) {
-      SERIAL_ECHOLNPGM("?Specified layer height not plausible.");
+      SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Specified layer height not plausible."));
       return;
     }
   }
@@ -552,12 +552,12 @@ void GcodeSuite::G26() {
     if (parser.has_value()) {
       g26.retraction_multiplier = parser.value_float();
       if (!WITHIN(g26.retraction_multiplier, 0.05, 15.0)) {
-        SERIAL_ECHOLNPGM("?Specified Retraction Multiplier not plausible.");
+        SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Specified Retraction Multiplier not plausible."));
         return;
       }
     }
     else {
-      SERIAL_ECHOLNPGM("?Retraction Multiplier must be specified.");
+      SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Retraction Multiplier must be specified."));
       return;
     }
   }
@@ -565,7 +565,7 @@ void GcodeSuite::G26() {
   if (parser.seenval('S')) {
     g26.nozzle = parser.value_float();
     if (!WITHIN(g26.nozzle, 0.1, 2.0)) {
-      SERIAL_ECHOLNPGM("?Specified nozzle size not plausible.");
+      SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Specified nozzle size not plausible."));
       return;
     }
   }
@@ -575,7 +575,7 @@ void GcodeSuite::G26() {
       #if HAS_MARLINUI_MENU
         g26.prime_flag = -1;
       #else
-        SERIAL_ECHOLNPGM("?Prime length must be specified when not using an LCD.");
+        SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Prime length must be specified when not using an LCD."));
         return;
       #endif
     }
@@ -583,7 +583,7 @@ void GcodeSuite::G26() {
       g26.prime_flag++;
       g26.prime_length = parser.value_linear_units();
       if (!WITHIN(g26.prime_length, 0.0, 25.0)) {
-        SERIAL_ECHOLNPGM("?Specified prime length not plausible.");
+        SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Specified prime length not plausible."));
         return;
       }
     }
@@ -592,7 +592,7 @@ void GcodeSuite::G26() {
   if (parser.seenval('F')) {
     g26.filament_diameter = parser.value_linear_units();
     if (!WITHIN(g26.filament_diameter, 1.0, 4.0)) {
-      SERIAL_ECHOLNPGM("?Specified filament size not plausible.");
+      SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Specified filament size not plausible."));
       return;
     }
   }
@@ -616,7 +616,7 @@ void GcodeSuite::G26() {
   // If any preset or temperature was specified
   if (noztemp) {
     if (!WITHIN(noztemp, 165, thermalManager.hotend_max_target(active_extruder))) {
-      SERIAL_ECHOLNPGM("?Specified nozzle temperature not plausible.");
+      SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Specified nozzle temperature not plausible."));
       return;
     }
     g26.hotend_temp = noztemp;
@@ -637,12 +637,12 @@ void GcodeSuite::G26() {
     if (parser.seen('R'))
       g26_repeats = parser.has_value() ? parser.value_int() : GRID_MAX_POINTS + 1;
     else {
-      SERIAL_ECHOLNPGM("?(R)epeat must be specified when not using an LCD.");
+      SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(R)epeat must be specified when not using an LCD."));
       return;
     }
   #endif
   if (g26_repeats < 1) {
-    SERIAL_ECHOLNPGM("?(R)epeat value not plausible; must be at least 1.");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(R)epeat value not plausible; must be at least 1."));
     return;
   }
 
@@ -650,7 +650,7 @@ void GcodeSuite::G26() {
   g26.xy_pos.set(parser.seenval('X') ? RAW_X_POSITION(parser.value_linear_units()) : current_position.x,
                  parser.seenval('Y') ? RAW_Y_POSITION(parser.value_linear_units()) : current_position.y);
   if (!position_is_reachable(g26.xy_pos)) {
-    SERIAL_ECHOLNPGM("?Specified X,Y coordinate out of bounds.");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Specified X,Y coordinate out of bounds."));
     return;
   }
 

Marlin/src/gcode/bedlevel/G35.cpp

@@ -64,7 +64,7 @@ void GcodeSuite::G35() {
 
   const uint8_t screw_thread = parser.byteval('S', TRAMMING_SCREW_THREAD);
   if (!WITHIN(screw_thread, 30, 51) || screw_thread % 10 > 1) {
-    SERIAL_ECHOLNPGM("?(S)crew thread must be 30, 31, 40, 41, 50, or 51.");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(S)crew thread must be 30, 31, 40, 41, 50, or 51."));
     return;
   }
 
@@ -95,9 +95,11 @@ void GcodeSuite::G35() {
   for (uint8_t i = 0; i < G35_PROBE_COUNT; ++i) {
     const float z_probed_height = probe.probe_at_point(tramming_points[i], PROBE_PT_RAISE);
     if (isnan(z_probed_height)) {
-      SERIAL_ECHO(
+      SERIAL_ECHOLN(
-        F("G35 failed at point "), i + 1, F(" ("), FPSTR(pgm_read_ptr(&tramming_point_name[i])), C(')'),
+        F("G35 failed at point "), i + 1,
-        FPSTR(SP_X_STR), tramming_points[i].x, FPSTR(SP_Y_STR), tramming_points[i].y
+        F(" ("), FPSTR(pgm_read_ptr(&tramming_point_name[i])), C(')'),
+        FPSTR(SP_X_STR), tramming_points[i].x,
+        FPSTR(SP_Y_STR), tramming_points[i].y
       );
       err_break = true;
       break;

Marlin/src/gcode/bedlevel/G42.cpp

@@ -32,6 +32,12 @@
 
 /**
  * G42: Move X & Y axes to mesh coordinates (I & J)
+ *
+ * Parameters:
+ *   F<feedrate> : Feedrate in mm/min
+ *   I<index>    : X axis point index
+ *   J<index>    : Y axis point index
+ *   P<bool>     : Flag to put the prove at the given point
  */
 void GcodeSuite::G42() {
   if (MOTION_CONDITIONS) {

Marlin/src/gcode/bedlevel/M420.cpp

@@ -105,13 +105,12 @@ void GcodeSuite::M420() {
         const int16_t a = settings.calc_num_meshes();
 
         if (!a) {
-          SERIAL_ECHOLNPGM("?EEPROM storage not available.");
+          SERIAL_ECHOLNPGM(GCODE_ERR_MSG("EEPROM storage not available."));
           return;
         }
 
         if (!WITHIN(storage_slot, 0, a - 1)) {
-          SERIAL_ECHOLNPGM("?Invalid storage slot.");
+          SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Invalid storage slot. Use 0 to ", a - 1));
-          SERIAL_ECHOLNPGM("?Use 0 to ", a - 1);
           return;
         }
 
@@ -120,7 +119,7 @@ void GcodeSuite::M420() {
 
       #else
 
-        SERIAL_ECHOLNPGM("?EEPROM storage not available.");
+        SERIAL_ECHOLNPGM(GCODE_ERR_MSG("EEPROM storage not available."));
         return;
 
       #endif
@@ -245,6 +244,8 @@ void GcodeSuite::M420() {
 }
 
 void GcodeSuite::M420_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(
     TERN(MESH_BED_LEVELING, "Mesh Bed Leveling", TERN(AUTO_BED_LEVELING_UBL, "Unified Bed Leveling", "Auto Bed Leveling"))
   ));

Marlin/src/gcode/bedlevel/abl/G29.cpp

@@ -51,8 +51,6 @@
   #include "../../../lcd/extui/ui_api.h"
 #elif ENABLED(DWIN_CREALITY_LCD)
   #include "../../../lcd/e3v2/creality/dwin.h"
-#elif ENABLED(DWIN_LCD_PROUI)
-  #include "../../../lcd/e3v2/proui/dwin.h"
 #endif
 
 #define DEBUG_OUT ENABLED(DEBUG_LEVELING_FEATURE)
@@ -77,7 +75,7 @@ static void pre_g29_return(const bool retry, const bool did) {
     TERN_(FULL_REPORT_TO_HOST_FEATURE, set_and_report_grblstate(M_IDLE, false));
   }
   if (did) {
-    TERN_(HAS_DWIN_E3V2_BASIC, dwinLevelingDone());
+    TERN_(DWIN_CREALITY_LCD, dwinLevelingDone());
     TERN_(EXTENSIBLE_UI, ExtUI::onLevelingDone());
   }
 }
@@ -344,7 +342,7 @@ G29_TYPE GcodeSuite::G29() {
 
     abl.verbose_level = parser.intval('V');
     if (!WITHIN(abl.verbose_level, 0, 4)) {
-      SERIAL_ECHOLNPGM("?(V)erbose level implausible (0-4).");
+      SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(V)erbose level implausible (0-4)."));
       G29_RETURN(false, false);
     }
 
@@ -365,11 +363,11 @@ G29_TYPE GcodeSuite::G29() {
       if (parser.seenval('P')) abl.grid_points.x = abl.grid_points.y = parser.value_int();
 
       if (!WITHIN(abl.grid_points.x, 2, GRID_MAX_POINTS_X)) {
-        SERIAL_ECHOLNPGM("?Probe points (X) implausible (2-" STRINGIFY(GRID_MAX_POINTS_X) ").");
+        SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Probe points (X) implausible (2-" STRINGIFY(GRID_MAX_POINTS_X) ")."));
         G29_RETURN(false, false);
       }
       if (!WITHIN(abl.grid_points.y, 2, GRID_MAX_POINTS_Y)) {
-        SERIAL_ECHOLNPGM("?Probe points (Y) implausible (2-" STRINGIFY(GRID_MAX_POINTS_Y) ").");
+        SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Probe points (Y) implausible (2-" STRINGIFY(GRID_MAX_POINTS_Y) ")."));
         G29_RETURN(false, false);
       }
 
@@ -404,7 +402,7 @@ G29_TYPE GcodeSuite::G29() {
           DEBUG_ECHOLNPGM("G29 L", abl.probe_position_lf.x, " R", abl.probe_position_rb.x,
                              " F", abl.probe_position_lf.y, " B", abl.probe_position_rb.y);
         }
-        SERIAL_ECHOLNPGM("? (L,R,F,B) out of bounds.");
+        SERIAL_ECHOLNPGM(GCODE_ERR_MSG(" (L,R,F,B) out of bounds."));
         G29_RETURN(false, false);
       }
 
@@ -425,8 +423,6 @@ G29_TYPE GcodeSuite::G29() {
     #if ENABLED(AUTO_BED_LEVELING_3POINT)
       if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("> 3-point Leveling");
       points[0].z = points[1].z = points[2].z = 0;  // Probe at 3 arbitrary points
-    #elif ENABLED(AUTO_BED_LEVELING_BILINEAR)
-      TERN_(DWIN_LCD_PROUI, dwinLevelingStart());
     #endif
 
     TERN_(EXTENSIBLE_UI, ExtUI::onLevelingStart());
@@ -436,11 +432,7 @@ G29_TYPE GcodeSuite::G29() {
 
       #if ENABLED(PREHEAT_BEFORE_LEVELING)
         if (!abl.dryrun) probe.preheat_for_probing(LEVELING_NOZZLE_TEMP,
-          #if ALL(DWIN_LCD_PROUI, HAS_HEATED_BED)
+          TERN(EXTENSIBLE_UI, ExtUI::getLevelingBedTemp(), LEVELING_BED_TEMP)
-            hmiData.bedLevT
-          #else
-            LEVELING_BED_TEMP
-          #endif
         );
       #endif
     }
@@ -691,7 +683,7 @@ G29_TYPE GcodeSuite::G29() {
           if (TERN0(IS_KINEMATIC, !probe.can_reach(abl.probePos))) continue;
 
           if (abl.verbose_level) SERIAL_ECHOLNPGM("Probing mesh point ", pt_index, "/", abl.abl_points, ".");
-          TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT(MSG_PROBING_POINT), int(pt_index), int(abl.abl_points)));
+          TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT_F(MSG_PROBING_POINT), int(pt_index), int(abl.abl_points)));
 
           #if ENABLED(BD_SENSOR_PROBE_NO_STOP)
             if (PR_INNER_VAR == inStart) {
@@ -790,7 +782,7 @@ G29_TYPE GcodeSuite::G29() {
 
       for (uint8_t i = 0; i < 3; ++i) {
         if (abl.verbose_level) SERIAL_ECHOLNPGM("Probing point ", i + 1, "/3.");
-        TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/3"), GET_TEXT(MSG_PROBING_POINT), int(i + 1)));
+        TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/3"), GET_TEXT_F(MSG_PROBING_POINT), int(i + 1)));
 
         // Retain the last probe position
         abl.probePos = xy_pos_t(points[i]);

Marlin/src/gcode/bedlevel/mbl/G29.cpp

@@ -40,8 +40,6 @@
 
 #if ENABLED(EXTENSIBLE_UI)
   #include "../../../lcd/extui/ui_api.h"
-#elif ENABLED(DWIN_LCD_PROUI)
-  #include "../../../lcd/e3v2/proui/dwin.h"
 #endif
 
 #define DEBUG_OUT ENABLED(DEBUG_LEVELING_FEATURE)
@@ -144,7 +142,6 @@ void GcodeSuite::G29() {
         queue.inject(F("G29S2"));
 
         TERN_(EXTENSIBLE_UI, ExtUI::onLevelingStart());
-        TERN_(DWIN_LCD_PROUI, dwinLevelingStart());
 
         return;
       }
@@ -170,7 +167,6 @@ void GcodeSuite::G29() {
         // Save Z for the previous mesh position
         bedlevel.set_zigzag_z(mbl_probe_index - 1, current_position.z);
         TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(ix, iy, current_position.z));
-        TERN_(DWIN_LCD_PROUI, dwinMeshUpdate(_MIN(mbl_probe_index, GRID_MAX_POINTS), int(GRID_MAX_POINTS), current_position.z));
         SET_SOFT_ENDSTOP_LOOSE(false);
       }
       // If there's another point to sample, move there with optional lift.
@@ -237,7 +233,6 @@ void GcodeSuite::G29() {
       if (parser.seenval('Z')) {
         bedlevel.z_values[ix][iy] = parser.value_linear_units();
         TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(ix, iy, bedlevel.z_values[ix][iy]));
-        TERN_(DWIN_LCD_PROUI, dwinMeshUpdate(ix, iy, bedlevel.z_values[ix][iy]));
       }
       else
         return echo_not_entered('Z');
@@ -258,7 +253,7 @@ void GcodeSuite::G29() {
 
   if (state == MeshNext) {
     SERIAL_ECHOLNPGM("MBL G29 point ", _MIN(mbl_probe_index, GRID_MAX_POINTS), " of ", GRID_MAX_POINTS);
-    if (mbl_probe_index > 0) TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT(MSG_PROBING_POINT), _MIN(mbl_probe_index, GRID_MAX_POINTS), int(GRID_MAX_POINTS)));
+    if (mbl_probe_index > 0) TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT_F(MSG_PROBING_POINT), _MIN(mbl_probe_index, GRID_MAX_POINTS), int(GRID_MAX_POINTS)));
   }
 
   report_current_position();

Marlin/src/gcode/bedlevel/ubl/M421.cpp

@@ -33,8 +33,6 @@
 
 #if ENABLED(EXTENSIBLE_UI)
   #include "../../../lcd/extui/ui_api.h"
-#elif ENABLED(DWIN_LCD_PROUI)
-  #include "../../../lcd/e3v2/proui/dwin.h"
 #endif
 
 /**
@@ -69,7 +67,6 @@ void GcodeSuite::M421() {
     float &zval = bedlevel.z_values[ij.x][ij.y];                          // Altering this Mesh Point
     zval = hasN ? NAN : parser.value_linear_units() + (hasQ ? zval : 0);  // N=NAN, Z=NEWVAL, or Q=ADDVAL
     TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(ij.x, ij.y, zval));          // Ping ExtUI in case it's showing the mesh
-    TERN_(DWIN_LCD_PROUI, dwinMeshUpdate(ij.x, ij.y, zval));
   }
 }
 

Marlin/src/gcode/calibrate/G28.cpp

@@ -52,8 +52,6 @@
   #include "../../lcd/extui/ui_api.h"
 #elif ENABLED(DWIN_CREALITY_LCD)
   #include "../../lcd/e3v2/creality/dwin.h"
-#elif ENABLED(DWIN_LCD_PROUI)
-  #include "../../lcd/e3v2/proui/dwin.h"
 #endif
 
 #if ENABLED(LASER_FEATURE)
@@ -223,7 +221,7 @@ void GcodeSuite::G28() {
     set_and_report_grblstate(M_HOMING);
   #endif
 
-  TERN_(HAS_DWIN_E3V2_BASIC, dwinHomingStart());
+  TERN_(DWIN_CREALITY_LCD, dwinHomingStart());
   TERN_(EXTENSIBLE_UI, ExtUI::onHomingStart());
 
   planner.synchronize();          // Wait for planner moves to finish!
@@ -652,7 +650,7 @@ void GcodeSuite::G28() {
 
   ui.refresh();
 
-  TERN_(HAS_DWIN_E3V2_BASIC, dwinHomingDone());
+  TERN_(DWIN_CREALITY_LCD, dwinHomingDone());
   TERN_(EXTENSIBLE_UI, ExtUI::onHomingDone());
 
   report_current_position();

Marlin/src/gcode/calibrate/G33.cpp

@@ -390,7 +390,7 @@ void GcodeSuite::G33() {
 
   const int8_t probe_points = parser.intval('P', DELTA_CALIBRATION_DEFAULT_POINTS);
   if (!WITHIN(probe_points, 0, 10)) {
-    SERIAL_ECHOLNPGM("?(P)oints implausible (0-10).");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(P)oints implausible (0-10)."));
     return;
   }
 
@@ -409,19 +409,19 @@ void GcodeSuite::G33() {
 
   const float calibration_precision = parser.floatval('C', 0.0f);
   if (calibration_precision < 0) {
-    SERIAL_ECHOLNPGM("?(C)alibration precision implausible (>=0).");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(C)alibration precision implausible (>=0)."));
     return;
   }
 
   const int8_t force_iterations = parser.intval('F', 0);
   if (!WITHIN(force_iterations, 0, 30)) {
-    SERIAL_ECHOLNPGM("?(F)orce iteration implausible (0-30).");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(F)orce iteration implausible (0-30)."));
     return;
   }
 
   const int8_t verbose_level = parser.byteval('V', 1);
   if (!WITHIN(verbose_level, 0, 3)) {
-    SERIAL_ECHOLNPGM("?(V)erbose level implausible (0-3).");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(V)erbose level implausible (0-3)."));
     return;
   }
 

Marlin/src/gcode/calibrate/G34_M422.cpp

@@ -110,19 +110,19 @@ void GcodeSuite::G34() {
 
       const int8_t z_auto_align_iterations = parser.intval('I', Z_STEPPER_ALIGN_ITERATIONS);
       if (!WITHIN(z_auto_align_iterations, 1, 30)) {
-        SERIAL_ECHOLNPGM("?(I)teration out of bounds (1-30).");
+        SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(I)teration out of bounds (1-30)."));
         break;
       }
 
       const float z_auto_align_accuracy = parser.floatval('T', Z_STEPPER_ALIGN_ACC);
-      if (!WITHIN(z_auto_align_accuracy, 0.01f, 1.0f)) {
+      if (!WITHIN(z_auto_align_accuracy, 0.001f, 1.0f)) {
-        SERIAL_ECHOLNPGM("?(T)arget accuracy out of bounds (0.01-1.0).");
+        SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(T)arget accuracy out of bounds (0.001-1.0)."));
         break;
       }
 
       const float z_auto_align_amplification = TERN(HAS_Z_STEPPER_ALIGN_STEPPER_XY, Z_STEPPER_ALIGN_AMP, parser.floatval('A', Z_STEPPER_ALIGN_AMP));
       if (!WITHIN(ABS(z_auto_align_amplification), 0.5f, 2.0f)) {
-        SERIAL_ECHOLNPGM("?(A)mplification out of bounds (0.5-2.0).");
+        SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(A)mplification out of bounds (0.5-2.0)."));
         break;
       }
 
@@ -450,7 +450,7 @@ void GcodeSuite::M422() {
   const bool is_probe_point = parser.seen_test('S');
 
   if (TERN0(HAS_Z_STEPPER_ALIGN_STEPPER_XY, is_probe_point && parser.seen_test('W'))) {
-    SERIAL_ECHOLNPGM("?(S) and (W) may not be combined.");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(S) and (W) may not be combined."));
     return;
   }
 
@@ -460,7 +460,7 @@ void GcodeSuite::M422() {
   );
 
   if (!is_probe_point && TERN1(HAS_Z_STEPPER_ALIGN_STEPPER_XY, !parser.seen_test('W'))) {
-    SERIAL_ECHOLNPGM("?(S)" TERN_(HAS_Z_STEPPER_ALIGN_STEPPER_XY, " or (W)") " is required.");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(S)" TERN_(HAS_Z_STEPPER_ALIGN_STEPPER_XY, " or (W)") " is required."));
     return;
   }
 
@@ -490,11 +490,11 @@ void GcodeSuite::M422() {
 
   if (is_probe_point) {
     if (!probe.can_reach(pos.x, Y_CENTER)) {
-      SERIAL_ECHOLNPGM("?(X) out of bounds.");
+      SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(X) out of bounds."));
       return;
     }
     if (!probe.can_reach(pos)) {
-      SERIAL_ECHOLNPGM("?(Y) out of bounds.");
+      SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(Y) out of bounds."));
       return;
     }
   }
@@ -503,6 +503,8 @@ void GcodeSuite::M422() {
 }
 
 void GcodeSuite::M422_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading(forReplay, F(STR_Z_AUTO_ALIGN));
   for (uint8_t i = 0; i < NUM_Z_STEPPERS; ++i) {
     report_echo_start(forReplay);

Marlin/src/gcode/calibrate/M425.cpp

@@ -106,6 +106,8 @@ void GcodeSuite::M425() {
 }
 
 void GcodeSuite::M425_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_BACKLASH_COMPENSATION));
   SERIAL_ECHOLNPGM_P(
     PSTR("  M425 F"), backlash.get_correction()

Marlin/src/gcode/calibrate/M48.cpp

@@ -62,13 +62,13 @@ void GcodeSuite::M48() {
 
   const int8_t verbose_level = parser.byteval('V', 1);
   if (!WITHIN(verbose_level, 0, 4)) {
-    SERIAL_ECHOLNPGM("?(V)erbose level implausible (0-4).");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("(V)erbose level implausible (0-4)."));
     return;
   }
 
   const int8_t n_samples = parser.byteval('P', 10);
   if (!WITHIN(n_samples, 4, 50)) {
-    SERIAL_ECHOLNPGM("?Sample size not plausible (4-50).");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Sample size not plausible (4-50)."));
     return;
   }
 
@@ -82,7 +82,7 @@ void GcodeSuite::M48() {
 
   if (!probe.can_reach(test_position)) {
     LCD_MESSAGE_MAX(MSG_M48_OUT_OF_BOUNDS);
-    SERIAL_ECHOLNPGM("? (X,Y) out of bounds.");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG(" (X,Y) out of bounds."));
     return;
   }
 
@@ -90,7 +90,7 @@ void GcodeSuite::M48() {
   bool seen_L = parser.seen('L');
   uint8_t n_legs = seen_L ? parser.value_byte() : 0;
   if (n_legs > 15) {
-    SERIAL_ECHOLNPGM("?Legs of movement implausible (0-15).");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Legs of movement implausible (0-15)."));
     return;
   }
   if (n_legs == 1) n_legs = 2;
@@ -149,7 +149,7 @@ void GcodeSuite::M48() {
     for (uint8_t n = 0; n < n_samples; ++n) {
       #if HAS_STATUS_MESSAGE
         // Display M48 progress in the status bar
-        ui.status_printf(0, F(S_FMT ": %d/%d"), GET_TEXT(MSG_M48_POINT), int(n + 1), int(n_samples));
+        ui.status_printf(0, F(S_FMT ": %d/%d"), GET_TEXT_F(MSG_M48_POINT), int(n + 1), int(n_samples));
       #endif
 
       // When there are "legs" of movement move around the point before probing

Marlin/src/gcode/calibrate/M665.cpp

@@ -62,6 +62,8 @@
   }
 
   void GcodeSuite::M665_report(const bool forReplay/*=true*/) {
+    TERN_(MARLIN_SMALL_BUILD, return);
+
     report_heading_etc(forReplay, F(STR_DELTA_SETTINGS));
     SERIAL_ECHOLNPGM_P(
         PSTR("  M665 L"), LINEAR_UNIT(delta_diagonal_rod)
@@ -132,6 +134,8 @@
   }
 
   void GcodeSuite::M665_report(const bool forReplay/*=true*/) {
+    TERN_(MARLIN_SMALL_BUILD, return);
+
     report_heading_etc(forReplay, F(STR_SCARA_SETTINGS " (" STR_S_SEG_PER_SEC TERN_(HAS_SCARA_OFFSET, " " STR_SCARA_P_T_Z) ")"));
     SERIAL_ECHOLNPGM_P(
       PSTR("  M665 S"), segments_per_second
@@ -170,6 +174,8 @@
   }
 
   void GcodeSuite::M665_report(const bool forReplay/*=true*/) {
+    TERN_(MARLIN_SMALL_BUILD, return);
+
     report_heading_etc(forReplay, F(STR_POLARGRAPH_SETTINGS));
     SERIAL_ECHOLNPGM_P(
       PSTR("  M665 S"), LINEAR_UNIT(segments_per_second),
@@ -196,10 +202,11 @@
   }
 
   void GcodeSuite::M665_report(const bool forReplay/*=true*/) {
+    TERN_(MARLIN_SMALL_BUILD, return);
     report_heading_etc(forReplay, F(STR_POLAR_SETTINGS));
     SERIAL_ECHOLNPGM_P(PSTR("  M665 S"), segments_per_second);
   }
 
-#endif
+#endif // POLAR
 
 #endif // IS_KINEMATIC

Marlin/src/gcode/calibrate/M666.cpp

@@ -56,11 +56,13 @@
         }
       }
     }
-    if (is_err) SERIAL_ECHOLNPGM("?M666 offsets must be <= 0");
+    if (is_err) SERIAL_ECHOLNPGM(GCODE_ERR_MSG("M666 offsets must be <= 0"));
     if (!is_set) M666_report();
   }
 
   void GcodeSuite::M666_report(const bool forReplay/*=true*/) {
+    TERN_(MARLIN_SMALL_BUILD, return);
+
     report_heading_etc(forReplay, F(STR_ENDSTOP_ADJUSTMENT));
     SERIAL_ECHOLNPGM_P(
         PSTR("  M666 X"), LINEAR_UNIT(delta_endstop_adj.a)
@@ -105,6 +107,8 @@
   }
 
   void GcodeSuite::M666_report(const bool forReplay/*=true*/) {
+    TERN_(MARLIN_SMALL_BUILD, return);
+
     report_heading_etc(forReplay, F(STR_ENDSTOP_ADJUSTMENT));
     SERIAL_ECHOPGM("  M666");
     #if ENABLED(X_DUAL_ENDSTOPS)

Marlin/src/gcode/calibrate/M852.cpp

@@ -92,6 +92,8 @@ void GcodeSuite::M852() {
 }
 
 void GcodeSuite::M852_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_SKEW_FACTOR));
   SERIAL_ECHOPGM("  M852 I", p_float_t(planner.skew_factor.xy, 6));
   #if ENABLED(SKEW_CORRECTION_FOR_Z)

Marlin/src/gcode/config/M200-M205.cpp

@@ -67,7 +67,7 @@
         if (WITHIN(lval, 0, VOLUMETRIC_EXTRUDER_LIMIT_MAX))
           planner.set_volumetric_extruder_limit(target_extruder, lval);
         else
-          SERIAL_ECHOLNPGM("?L value out of range (0-" STRINGIFY(VOLUMETRIC_EXTRUDER_LIMIT_MAX) ").");
+          SERIAL_ECHOLNPGM(GCODE_ERR_MSG("L value out of range (0-" STRINGIFY(VOLUMETRIC_EXTRUDER_LIMIT_MAX) ")."));
       }
     #endif
 
@@ -75,6 +75,8 @@
   }
 
   void GcodeSuite::M200_report(const bool forReplay/*=true*/) {
+    TERN_(MARLIN_SMALL_BUILD, return);
+
     if (!forReplay) {
       report_heading(forReplay, F(STR_FILAMENT_SETTINGS), false);
       if (!parser.volumetric_enabled) SERIAL_ECHOPGM(" (Disabled):");
@@ -142,6 +144,8 @@ void GcodeSuite::M201() {
 }
 
 void GcodeSuite::M201_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_MAX_ACCELERATION));
   #if NUM_AXES
     SERIAL_ECHOPGM_P(
@@ -198,6 +202,8 @@ void GcodeSuite::M203() {
 }
 
 void GcodeSuite::M203_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_MAX_FEEDRATES));
   #if NUM_AXES
     SERIAL_ECHOPGM_P(
@@ -255,6 +261,8 @@ void GcodeSuite::M204() {
 }
 
 void GcodeSuite::M204_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_ACCELERATION_P_R_T));
   SERIAL_ECHOLNPGM_P(
       PSTR("  M204 P"), LINEAR_UNIT(planner.settings.acceleration)
@@ -329,6 +337,8 @@ void GcodeSuite::M205() {
 }
 
 void GcodeSuite::M205_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(
     "Advanced (" M205_MIN_SEG_TIME_STR "<min_segment_time_us> S<min_feedrate> T<min_travel_feedrate>"
     TERN_(HAS_JUNCTION_DEVIATION, " J<junc_dev>")

Marlin/src/gcode/config/M217.cpp

@@ -164,6 +164,8 @@ void GcodeSuite::M217() {
 }
 
 void GcodeSuite::M217_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_TOOL_CHANGING));
 
   SERIAL_ECHOPGM("  M217");

Marlin/src/gcode/config/M218.cpp

@@ -63,6 +63,8 @@ void GcodeSuite::M218() {
 }
 
 void GcodeSuite::M218_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_HOTEND_OFFSETS));
   for (uint8_t e = 1; e < HOTENDS; ++e) {
     report_echo_start(forReplay);

Marlin/src/gcode/config/M281.cpp

@@ -55,6 +55,8 @@ void GcodeSuite::M281() {
 }
 
 void GcodeSuite::M281_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_SERVO_ANGLES));
   for (uint8_t i = 0; i < NUM_SERVOS; ++i) {
     switch (i) {

Marlin/src/gcode/config/M301.cpp

@@ -78,6 +78,8 @@ void GcodeSuite::M301() {
 }
 
 void GcodeSuite::M301_report(const bool forReplay/*=true*/ E_OPTARG(const int8_t eindex/*=-1*/)) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading(forReplay, F(STR_HOTEND_PID));
   IF_DISABLED(HAS_MULTI_EXTRUDER, constexpr int8_t eindex = -1);
   HOTEND_LOOP() {

Marlin/src/gcode/config/M302.cpp

@@ -25,12 +25,13 @@
 #if ENABLED(PREVENT_COLD_EXTRUSION)
 
 #include "../gcode.h"
-#include "../../module/temperature.h"
 
-#if ENABLED(DWIN_LCD_PROUI)
+#if ENABLED(EXTENSIBLE_UI)
-  #include "../../lcd/e3v2/proui/dwin.h"
+  #include "../../lcd/extui/ui_api.h"
 #endif
 
+#include "../../module/temperature.h"
+
 /**
  * M302: Allow cold extrudes, or set the minimum extrude temperature
  *
@@ -50,13 +51,14 @@ void GcodeSuite::M302() {
   const bool seen_S = parser.seen('S');
   if (seen_S) {
     thermalManager.extrude_min_temp = parser.value_celsius();
-    thermalManager.allow_cold_extrude = (thermalManager.extrude_min_temp == 0);
+    TERN_(EXTENSIBLE_UI, ExtUI::onSetMinExtrusionTemp(thermalManager.extrude_min_temp));
-    TERN_(DWIN_LCD_PROUI, hmiData.extMinT = thermalManager.extrude_min_temp);
   }
 
-  if (parser.seen('P'))
+  const bool seen_P = parser.seen('P');
-    thermalManager.allow_cold_extrude = (thermalManager.extrude_min_temp == 0) || parser.value_bool();
+  if (seen_P || seen_S) {
-  else if (!seen_S) {
+    thermalManager.allow_cold_extrude = (thermalManager.extrude_min_temp == 0) || (seen_P && parser.value_bool());
+  }
+  else {
     // Report current state
     SERIAL_ECHO_START();
     SERIAL_ECHOLN(F("Cold extrudes are "), thermalManager.allow_cold_extrude ? F("en") : F("dis"), F("abled (min temp "), thermalManager.extrude_min_temp, F("C)"));

Marlin/src/gcode/config/M304.cpp

@@ -42,6 +42,8 @@ void GcodeSuite::M304() {
 }
 
 void GcodeSuite::M304_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_BED_PID));
   SERIAL_ECHOLNPGM("  M304"
       " P", thermalManager.temp_bed.pid.p()

Marlin/src/gcode/config/M309.cpp

@@ -42,6 +42,8 @@ void GcodeSuite::M309() {
 }
 
 void GcodeSuite::M309_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_CHAMBER_PID));
   SERIAL_ECHOLNPGM("  M309"
       " P", thermalManager.temp_chamber.pid.p()

Marlin/src/gcode/config/M92.cpp

@@ -96,6 +96,8 @@ void GcodeSuite::M92() {
 }
 
 void GcodeSuite::M92_report(const bool forReplay/*=true*/, const int8_t e/*=-1*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_STEPS_PER_UNIT));
   #if NUM_AXES
     #define PRINT_EOL

Marlin/src/gcode/control/M10_M11.cpp

@@ -20,6 +20,11 @@
  *
  */
 
+/**
+ * gcode/control/M10_M11.cpp
+ * Air Evacuation
+ */
+
 #include "../../inc/MarlinConfig.h"
 
 #if ENABLED(AIR_EVACUATION)

Marlin/src/gcode/control/M211.cpp

@@ -40,6 +40,8 @@ void GcodeSuite::M211() {
 }
 
 void GcodeSuite::M211_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_SOFT_ENDSTOPS));
   SERIAL_ECHOPGM("  M211 S", AS_DIGIT(soft_endstop._enabled), " ; ");
   serialprintln_onoff(soft_endstop._enabled);

Marlin/src/gcode/control/M42.cpp

@@ -79,7 +79,7 @@ void GcodeSuite::M42() {
       #ifdef OUTPUT_OPEN_DRAIN
         case 5: pinMode(pin, OUTPUT_OPEN_DRAIN); break;
       #endif
-      default: SERIAL_ECHOLNPGM("Invalid Pin Mode"); return;
+      default: SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Invalid Pin Mode")); return;
     }
   }
 
@@ -94,7 +94,7 @@ void GcodeSuite::M42() {
   #endif
 
   if (avoidWrite) {
-    SERIAL_ECHOLNPGM("?Cannot write to INPUT");
+    SERIAL_ECHOLNPGM(GCODE_ERR_MSG("Cannot write to INPUT"));
     return;
   }
 

Marlin/src/gcode/control/M85.cpp

@@ -32,11 +32,16 @@ void GcodeSuite::M85() {
     const millis_t ms = parser.value_millis_from_seconds();
     #if LASER_SAFETY_TIMEOUT_MS > 0
       if (ms && ms <= LASER_SAFETY_TIMEOUT_MS) {
-        SERIAL_ECHO_MSG("M85 timeout must be > ", MS_TO_SEC(LASER_SAFETY_TIMEOUT_MS + 999), " s for laser safety.");
+        SERIAL_ECHO_MSG(GCODE_ERR_MSG("M85 timeout must be > ", MS_TO_SEC(LASER_SAFETY_TIMEOUT_MS + 999), " s for laser safety."));
         return;
       }
     #endif
     max_inactive_time = ms;
   }
+  else {
+    #if DISABLED(MARLIN_SMALL_BUILD)
+      SERIAL_ECHOLNPGM("Inactivity timeout ", MS_TO_SEC(max_inactive_time), " s.");
+    #endif
+  }
 
 }

Marlin/src/gcode/control/M997.cpp

@@ -24,8 +24,8 @@
 
 #if ENABLED(PLATFORM_M997_SUPPORT)
 
-#if ENABLED(DWIN_LCD_PROUI)
+#if ENABLED(EXTENSIBLE_UI)
-  #include "../../lcd/e3v2/proui/dwin.h"
+  #include "../../lcd/extui/ui_api.h"
 #endif
 
 /**
@@ -33,7 +33,7 @@
  */
 void GcodeSuite::M997() {
 
-  TERN_(DWIN_LCD_PROUI, dwinRebootScreen());
+  TERN_(EXTENSIBLE_UI, ExtUI::onFirmwareFlash());
 
   flashFirmware(parser.intval('S'));
 

Marlin/src/gcode/feature/advance/M900.cpp

@@ -141,6 +141,8 @@ void GcodeSuite::M900() {
 }
 
 void GcodeSuite::M900_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading(forReplay, F(STR_LINEAR_ADVANCE));
   #if DISTINCT_E < 2
     report_echo_start(forReplay);

Marlin/src/gcode/feature/controllerfan/M710.cpp

@@ -67,6 +67,8 @@ void GcodeSuite::M710() {
 }
 
 void GcodeSuite::M710_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_CONTROLLER_FAN));
   SERIAL_ECHOLNPGM("  M710"
     " S", int(controllerFan.settings.active_speed),

Marlin/src/gcode/feature/digipot/M907-M910.cpp

@@ -68,7 +68,7 @@ void GcodeSuite::M907() {
       #define HAS_X_Y_XY_I_J_K_U_V_W 1
     #endif
 
-    #if HAS_X_Y_XY_I_J_K_U_V_W || ANY_PIN(MOTOR_CURRENT_PWM_E, MOTOR_CURRENT_PWM_Z)
+    #if HAS_X_Y_XY_I_J_K_U_V_W || HAS_MOTOR_CURRENT_PWM_E || PIN_EXISTS(MOTOR_CURRENT_PWM_Z)
 
       if (!parser.seen("S"
         #if HAS_X_Y_XY_I_J_K_U_V_W
@@ -77,7 +77,7 @@ void GcodeSuite::M907() {
         #if PIN_EXISTS(MOTOR_CURRENT_PWM_Z)
           "Z"
         #endif
-        #if PIN_EXISTS(MOTOR_CURRENT_PWM_E)
+        #if HAS_MOTOR_CURRENT_PWM_E
           "E"
         #endif
       )) return M907_report();
@@ -94,7 +94,7 @@ void GcodeSuite::M907() {
       #if PIN_EXISTS(MOTOR_CURRENT_PWM_Z)
         if (parser.seenval('Z')) stepper.set_digipot_current(1, parser.value_int());
       #endif
-      #if PIN_EXISTS(MOTOR_CURRENT_PWM_E)
+      #if HAS_MOTOR_CURRENT_PWM_E
         if (parser.seenval('E')) stepper.set_digipot_current(2, parser.value_int());
       #endif
 
@@ -126,12 +126,16 @@ void GcodeSuite::M907() {
 #if HAS_MOTOR_CURRENT_SPI || HAS_MOTOR_CURRENT_PWM
 
   void GcodeSuite::M907_report(const bool forReplay/*=true*/) {
+    TERN_(MARLIN_SMALL_BUILD, return);
+
     report_heading_etc(forReplay, F(STR_STEPPER_MOTOR_CURRENTS));
     #if HAS_MOTOR_CURRENT_PWM
       SERIAL_ECHOLNPGM_P(                                     // PWM-based has 3 values:
           PSTR("  M907 X"), stepper.motor_current_setting[0]  // X, Y, (I, J, K, U, V, W)
         , SP_Z_STR,         stepper.motor_current_setting[1]  // Z
-        , SP_E_STR,         stepper.motor_current_setting[2]  // E
+        #if HAS_MOTOR_CURRENT_PWM_E
+          , SP_E_STR,       stepper.motor_current_setting[2]  // E
+        #endif
       );
     #elif HAS_MOTOR_CURRENT_SPI
       SERIAL_ECHOPGM("  M907");                               // SPI-based has 5 values:

Marlin/src/gcode/feature/ft_motion/M493.cpp

@@ -104,6 +104,8 @@ void say_shaping() {
 }
 
 void GcodeSuite::M493_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_FT_MOTION));
   const ft_config_t &c = ftMotion.cfg;
   SERIAL_ECHOPGM("  M493 S", c.mode);

Marlin/src/gcode/feature/fwretract/M207-M209.cpp

@@ -38,6 +38,8 @@
 void GcodeSuite::M207() { fwretract.M207(); }
 
 void GcodeSuite::M207_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_RETRACT_S_F_Z));
   fwretract.M207_report();
 }
@@ -53,6 +55,8 @@ void GcodeSuite::M207_report(const bool forReplay/*=true*/) {
 void GcodeSuite::M208() { fwretract.M208(); }
 
 void GcodeSuite::M208_report(const bool forReplay/*=true*/) {
+  TERN_(MARLIN_SMALL_BUILD, return);
+
   report_heading_etc(forReplay, F(STR_RECOVER_S_F));
   fwretract.M208_report();
 }
@@ -68,6 +72,8 @@ void GcodeSuite::M208_report(const bool forReplay/*=true*/) {
   void GcodeSuite::M209() { fwretract.M209(); }
 
   void GcodeSuite::M209_report(const bool forReplay/*=true*/) {
+    TERN_(MARLIN_SMALL_BUILD, return);
+
     report_heading_etc(forReplay, F(STR_AUTO_RETRACT_S));
     fwretract.M209_report();
   }