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cannot change parameters in powerstep01

Question asked by Sven Burdorf on Aug 4, 2017
Latest reply on Aug 4, 2017 by Sven Burdorf

Hi everyone,

I have a weird problem with the powerstep01 on a X-NUCLEO-IHM03A1. I want to change to driver parameters KVAL_HOLD, KVAL_RUN, KVAL_ACC, KVAL_DEC, INT_SPEED, ST_SLP, FN_SLP_ACC, FN_SLP_DEC. All works as expected as long as I use a single board. However, if I use use a stack of three boards in a daisy chain I can only change KVAL_HOLD, KVAL_RUN, KVAL_ACC, KVAL_DEC while the other parameters remain unchanged. All motors are stopped and HiZ.

Any help is much appreciated.