M122 - TMC Debugging

1.1.7 debug Get TMC Debug Info

Description

Do a communication check for configured TMC drivers. Trinamic drivers that support this feature are TMC2130, TMC2160, TMC2208, TMC2209, TMC2660, TMC5130, and TMC5160.

With no parameters, this command returns the current settings for all installed and supported Trinamic stepper drivers.
Send M122 I to re-initialize drivers after a late power-on. Use S[0|1] to enable/disable continuous debugging output.

Notes

Requires at least one Trinamic stepper driver with SPI or UART connection.

TMC_DEBUG is no longer required to enable this G-code in Marlin 2.x, but enabling it produces an extended report.

Responses of all LOW (00:00:00:00) or all HIGH (FF:FF:FF:FF) are signs of a communication problem.
See TMC Troubleshooting for further information.

Usage

M122 [E] [I] [P<ms>] [S<bool>] [V] [X] [Y] [Z]

Parameters

`[E]`	Target E driver(s) only.
`[I]` 2.0.6	Flag to re-initialize stepper drivers with current settings.
`[P<ms>]` TMC_DEBUG MONITOR_DRIVER_STATUS	Interval between continuous debug reports, in milliseconds.
`[S<bool>]` TMC_DEBUG MONITOR_DRIVER_STATUS	Flag to enable/disable continuous debug reporting.
`[V]` TMC_DEBUG	Report raw register data. Refer to the datasheet to decipher the report.
`[X]`	Target X driver(s) only.
`[Y]`	Target Y driver(s) only.
`[Z]`	Target Z driver(s) only.

Examples

Enable debugging output:

M122 S1

Get all (supported) Trinamic driver states:

> M122 X Y Enabled false false Set current 850 850 RMS current 826 826 MAX current 1165 1165 Run current 26/31 26/31 Hold current 13/31 13/31 CS actual 13/31 13/31 PWM scale 41 41 vsense 1=.18 1=.18 stealthChop true true msteps 16 16 tstep 1048575 1048575 pwm threshold 0 0 [mm/s] - - OT prewarn false false OT prewarn has been triggered false false off time 5 5 blank time 24 24 hysterisis -end 2 2 -start 3 3 Stallguard thrs 0 0 DRVSTATUS X Y stallguard sg_result 0 0 fsactive stst olb ola s2gb s2ga otpw ot 'Driver registers:' X = 0x80:0D:00:00 Y = 0x80:0D:00:00