I'm unable to control 3 stepper motors at once using 3 PowerSTEP01 expansion boards

[DSema.1]

I have connected 3 motor shields in a daisy chain however, for some reason i can figure out, only the first motor is running. I tired debugging the code and realised that the movement function for the other two motors is never executed but im not sure how to fix this.

[Laurent Ca...]

Dear @DSema.1​ 

For stepper motors, it is better to ask this question in "Motor Control HW" forum topic.

Therefor I move your question in this topic.

Best regards

[Cristiana SCARAMEL]

Hello @DSema.1​ and welcome to the ST Community.

as first thing I suggest you to verify the correct implementation of daisy chain.

You can find more details about the daisy chain architecture with powesrSTEP01 in the dedicated Application Note AN4290.

Let me know if these info are useful to you, if yes please "Select as Best" label.