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All TMC stepper failed to init: Unable to read tmc uart register IFCNT


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It's getting crazy.  Got the new SKR3 today.  Klipper FW flashed.  TMC 2209 measured with a multimeter.  Everything OK.  Jumper for UART set everything nicely according to instructions.  Raspberry 4 newly installed.  I can't move an engine.  It always comes up with this error message. TMC stepper_x failed to init: Unable to read tmc uart 'stepper_x' register IFCNT
TMC stepper_y failed to init: Unable to read tmc uart 'stepper_y' register IFCNT
TMC stepper_z failed to init: Unable to read tmc uart 'stepper_z' register IFCNT
TMC stepper_z1 failed to init: Unable to read tmc uart 'stepper_z1' register IFCNT
TMC extruder failed to init: Unable to read tmc uart 'extruder' register IFCNT. At the moment I don't know what to do next.  Have UART completely removed from the config jumper set again.  Now I can move X without error message.  But the motor doesn't move.  I do not know how to continue.

The same happens with the TMC 2208 that I have as a reserve.

Here ist a Video

https://drive.google.com/file/d/1KRGQYcOO2hoQcfJvZxcOXQ1HnOYiDv8e/view?usp=drivesdk

 

 

 

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