79 lines
2.3 KiB
Markdown
79 lines
2.3 KiB
Markdown
---
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tag: m0043
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title: Debug Pins
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brief: Get information about pins.
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author: thinkyhead
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experimental: true
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requires: PINS_DEBUGGING
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group: debug
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codes: [ M43 ]
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notes:
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- Requires `PINS_DEBUGGING`. This feature should be disabled for production use.
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parameters:
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-
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tag: P
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optional: true
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description: Digital Pin Number
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values:
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-
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tag: pin
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type: int
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-
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tag: W
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optional: true
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description: Watch pins
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-
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tag: E
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optional: true
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description: Watch endstops
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values:
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-
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type: bool
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-
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tag: T
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optional: true
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description: Toggle pins - see [`M43 T`](/docs/gcode/M043-T.html) for options
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values:
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-
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tag: S
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optional: true
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description: Test BLTouch type servo probes. Use `P` to specify servo index (0-3). Defaults to 0 if `P` omitted
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values:
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-
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tag: I
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optional: true
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description: Ignore protection when reporting values
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values:
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examples:
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-
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pre: Get a report on all pins
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code: M43
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-
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pre: Get a report on all pins, ignore pin protection list when displaying values
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code: M43 I
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-
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pre: Watch pin 56 for changes
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code: M43 P56 W
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-
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pre: Start watching endstops
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code: M43 E1
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-
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pre: Toggle pins 3-6 five times with 1 second low and 1 second high pulses but only if the pin isn't in the protected list.
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code: M43 T S3 L6 R5 W1000
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-
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pre: Test probe controlled by servo index 2.
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code: M43 S P2
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---
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When setting up or debugging a machine it's useful to know how pins are assigned to functions by the firmware, and to be able to find pins for use with new functions. [`M43`](/docs/gcode/M043.html) provides these tools. [`M43`](/docs/gcode/M043.html) by itself reports all pin assignments. Use `P` to specify a single pin. Use `I` to report the values on pins that are protected. Use `W` to watch the specified pin, or all pins. Use the `E` option to monitor endstops. Use `S` option to test a BLTouch type servo probe. Use `T` option to toggle pins.
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The `W` watch mode option continues looping, blocking all further commands, until the board is reset. If `EMERGENCY_PARSER` is enabled, [`M108`](/docs/gcode/M108.html) may also be used to exit the watch loop without needing to reset the board.
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See [`M43 T`](/docs/gcode/M043-T.html) for Pins Debugging toggle options.
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