- G0 / G1 : Linear Move
- G2 / G3 : Controlled Arc Move
- G4 : Dwell
- G5 : Bézier cubic spline
- G10 : Retract
- G11 : Recover
- G12 : Clean the Nozzle
- G20 : Inch Units
- G21 : Millimeter Units
- G26 : Mesh Validation Pattern
- G27 : Park toolhead
- G28 : Auto Home
- G29 : Bed Leveling (Manual)
- G29 : Bed Leveling (Automatic)
- G29 : Bed Leveling (Unified)
- G30 : Single Z-Probe
- G31 : Dock Sled
- G32 : Undock Sled
- G33 : Delta Auto Calibration
- G38.2 / G38.3 : Probe target
- G42 : Move to mesh coordinate
- G53 : Move in Machine Coordinates
- G54 / G55 / G56 / G57 / G58 / G59 / G59.1 / G59.2 / G59.3 : Workspace Coordinate System
- G90 : Absolute Positioning
- G91 : Relative Positioning
- G92 : Set Position
- G425 : Perform auto-calibration
- M0 / M1 : Unconditional stop
- M3 : Spindle CW / Laser On
- M4 : Spindle CCW / Laser On
- M5 : Spindle / Laser Off
- M17 : Enable Steppers
- M18 / M84 : Disable steppers
- M20 : List SD Card
- M21 : Init SD card
- M22 : Release SD card
- M23 : Select SD file
- M24 : Start or Resume SD print
- M25 : Pause SD print
- M26 : Set SD position
- M27 : Report SD print status
- M28 : Start SD write
- M29 : Stop SD write
- M30 : Delete SD file
- M31 : Print time
- M32 : Select and Start
- M33 : Get Long Path
- M34 : SDCard Sorting
- M42 : Set Pin State
- M43 : Debug Pins
- M43 T : Toggle Pins
- M48 : Probe Accuracy Test
- M73 : Set Print Progress
- M75 : Start Print Job Timer
- M76 : Pause Print Job
- M77 : Stop Print Job Timer
- M78 : Print Job Stats
- M80 : Power On
- M81 : Power Off
- M82 : E Absolute
- M83 : E Relative
- M85 : Inactivity Shutdown
- M92 : Set Axis Steps-per-unit
- M100 : Free Memory
- M104 : Set Hotend Temperature
- M105 : Report Temperatures
- M106 : Set Fan Speed
- M107 : Fan Off
- M108 : Break and Continue
- M109 : Wait for Hotend Temperature
- M110 : Set Line Number
- M111 : Debug Level
- M112 : Emergency Stop
- M113 : Host Keepalive
- M114 : Get Current Position
- M115 : Firmware Info
- M117 : Set LCD Message
- M118 : Serial print
- M119 : Endstop States
- M120 : Enable Endstops
- M121 : Disable Endstops
- M122 : TMC Debugging
- M125 : Park Head
- M126 : Baricuda 1 Open
- M127 : Baricuda 1 Close
- M128 : Baricuda 2 Open
- M129 : Baricuda 2 Close
- M140 : Set Bed Temperature
- M145 : Set Material Preset
- M149 : Set Temperature Units
- M150 : Set RGB(W) Color
- M155 : Temperature Auto-Report
- M163 : Set Mix Factor
- M164 : Save Mix
- M165 : Set Mix
- M166 : Gradient Mix
- M190 : Wait for Bed Temperature
- M200 : Set Filament Diameter
- M201 : Set Print Max Acceleration
- M203 : Set Max Feedrate
- M204 : Set Starting Acceleration
- M205 : Set Advanced Settings
- M206 : Set Home Offsets
- M207 : Set Firmware Retraction
- M208 : Firmware Recover
- M209 : Set Auto Retract
- M211 : Software Endstops
- M217 : Filament swap parameters
- M218 : Set Hotend Offset
- M220 : Set Feedrate Percentage
- M221 : Set Flow Percentage
- M226 : Wait for Pin State
- M240 : Trigger Camera
- M250 : LCD Contrast
- M260 : I2C Send
- M261 : I2C Request
- M280 : Servo Position
- M290 : Babystep
- M300 : Play Tone
- M301 : Set Hotend PID
- M302 : Cold Extrude
- M303 : PID autotune
- M304 : Set Bed PID
- M350 : Set micro-stepping
- M351 : Set Microstep Pins
- M355 : Case Light Control
- M360 : SCARA Theta A
- M361 : SCARA Theta-B
- M362 : SCARA Psi-A
- M363 : SCARA Psi-B
- M364 : SCARA Psi-C
- M380 : Activate Solenoid
- M381 : Deactivate Solenoids
- M400 : Finish Moves
- M401 : Deploy Probe
- M402 : Stow Probe
- M403 : MMU2 Filament Type
- M404 : Set Filament Diameter
- M405 : Filament Width Sensor On
- M406 : Filament Width Sensor Off
- M407 : Filament Width
- M410 : Quickstop
- M412 : Filament Runout
- M413 : Power-loss Recovery
- M420 : Bed Leveling State
- M421 : Set Mesh Value
- M425 : Backlash compensation
- M428 : Home Offsets Here
- M500 : Save Settings
- M501 : Restore Settings
- M502 : Factory Reset
- M503 : Report Settings
- M504 : Validate EEPROM contents
- M524 : Abort SD print
- M540 : Endstops Abort SD
- M569 : Set TMC stepping mode
- M600 : Filament Change
- M603 : Configure Filament Change
- M605 : Dual Nozzle Mode
- M665 : Delta Configuration
- M665 : SCARA Configuration
- M666 : Set Delta endstop adjustments
- M666 : Set dual endstop offsets
- M701 : Load filament
- M702 : Unload filament
- M851 : Z Probe Offset
- M852 : Bed Skew Compensation
- M900 : Linear Advance Factor
- M906 : TMC Motor Current
- M907 : Set Motor Current
- M908 : Set Trimpot Pins
- M909 : DAC Print Values
- M910 : Commit DAC to EEPROM
- M911 : TMC OT Pre-Warn Condition
- M912 : Clear TMC OT Pre-Warn
- M913 : Set Hybrid Threshold Speed
- M914 : TMC Bump Sensitivity
- M915 : TMC Z axis calibration
- M928 : Start SD Logging
- M999 : STOP Restart
- M1005 : Firmware Information
- M7219 : MAX7219 Control
M20 - List SD Card
Description
List the entire contents of the SD card to serial output in the more compact DOS 8.3 format.
Marlin 1.1.0 includes file sizes in the output.
Notes
Requires SDSUPPORT
Parameters
M20