For the record, I was able to make it connect using version 5.4.8 of Motor Control Workbench of (the oldest one available for download as of today) with STM32CubeMX v6.6.1 and STM32CubeIDE v1.10.1.Still, it's not very stable: it works best on 9600, o...

Hi, I have exactly the same issue and behavior as you described. I tried all baudrates (including changing them in ST Motor Controller Workbench -> Digital I/O block), and probed UART line with oscilloscope on the J7 of the STEVAL-SPIN3201: I see tha...