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| author | Kevin O'Connor <kevin@koconnor.net> | 2021-06-12 14:13:53 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2021-06-12 14:16:23 -0400 |
| commit | a0c27571dd0ff841a1464a7df05a8cdd7a2d135d (patch) | |
| tree | d911b8e32d4b8ba38ab448d65c031b7af19f1f21 | |
| parent | 07004a889d9664eefd65613d79c663d3ca705c20 (diff) | |
| download | kutter-a0c27571dd0ff841a1464a7df05a8cdd7a2d135d.tar.gz kutter-a0c27571dd0ff841a1464a7df05a8cdd7a2d135d.tar.xz kutter-a0c27571dd0ff841a1464a7df05a8cdd7a2d135d.zip | |
docs: Note previous firmware state issue with TMC2209/TMC2209 in TMC_Drivers.md
If a high UART frequency is used to communicate with TMC2208/TMC2209
drivers then it may not be possible for Klipper to communicate with
the drivers until they are reset. Note this in the troubleshooting
document.
Reported by @matthewlloyd.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
| -rw-r--r-- | docs/TMC_Drivers.md | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/TMC_Drivers.md b/docs/TMC_Drivers.md index fee1e75a..fd082bde 100644 --- a/docs/TMC_Drivers.md +++ b/docs/TMC_Drivers.md @@ -381,6 +381,12 @@ Make sure that the motor power is enabled, as the stepper motor driver generally needs motor power before it can communicate with the micro-controller. +If this error occurs after flashing Klipper for the first time, then +the stepper driver may have been previously programmed in a state that +is not compatible with Klipper. To reset the state, remove all power +from the printer for several seconds (physically unplug both USB and +power plugs). + Otherwise, this error is typically the result of incorrect UART pin wiring or an incorrect Klipper configuration of the UART pin settings. |