Weird behaviour of GEEETech TMC 2208
I ordered and received 4 GEEETEch TMC 2208 for my GEEETech A10.
Installed them the correct way : power off, stepper motor disconneceted, correct direction ( confirmed by pin name and color )...
Powered on, Tweaked the V ref to arround 0.7V ( later between 0.2 and 1.1V : no change ), inverted axis in the firmware
Powered off, reconnected motors, powered on
and the issue is that 2 of the TMC do not send any command to the motor ( those do not even activate ), while the other 2 only send command in one direction ( a -3mm or +3mm will give the same result of +3mm for exemple ) and do not even take into account inversion of direction on the firmware, yet make the motor run smoothly, accurately and quietly.
putting the A4988 back : the printer works nicely
I sent ticket to GEEEtech, but they are late to answer and i would like to be able to print correctly again quickly ( i burned 1A4988 while checking, so i work currently with 3A4988 as X Y Z with 1 stupid 1 direction TMC for E0 to print without retraction => awful )
Do you have any idea how to fix that issue ( changing Vref between 0.2 and 1.1V don't, removing jumper neither... ) ?
Or do you think that the 4/4 TMC are defective ( in 2 different scale !! ) ?