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I am trying to use the auto-scaling function for the high-resolution CMPAHR and CMPBHR registers on ePWM4 and ePWM5. Nothing I do will allow me to set the HRMSTEP registers in these two ePWM modules. No matter what I do it always reads back zero, resulting in the high-resolution functionality not working. If I set the AUTOCONV control to 0 and manually scale by MEP_ScaleFactor, then the high-resolution functionality works. I have tried using the SFO function to generate MEP_ScaleFactor. It gives me a valid scale factor and also writes that value to the HRMSTEP register in ePWM1, but does not do anything with the other PWM modules.
