mbuc

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] [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]
    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