TMS320F28P550SJ: EPWM sync

Dennis Jarc

Part Number: TMS320F28P550SJ
Other Parts Discussed in Thread: SYSCONFIG

I am using XBAR Input 5 to sync the ePWM to an ADC zero cross event. That does work but I need three sync signals and there are only XBAR Input 5 and XBAR Input 6 available. I also have a ePWM XBAR that is tied to the ADC zero cross event that generates a trip output. I have not been able to figure out how to use the trip output to sync the ePWM.

Can you define how to do that for a 28P550 using sysconfig?

Thanks

Dennis

3 months ago

0 Dennis Jarc 3 months ago

Intellectual 270 points

I have figured out how to program the ADC event to sync the ePWM. The sync works when the CLB is overriding the ePWM input. If I use a CLB XBAR to generate the gate pules train, the sync does not work anymore even though the ePWM signal is part of the CLB output.

Why doesn't the ePWM sync work with the CLB XBAR?

Thanks

Dennis

+1 Sumit Patil1 3 months ago in reply to Dennis Jarc

TI__Expert 5250 points

I am glad to hear that you have figured out the resolution for your issue.

Regards,

Sumit

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TMS320F28P550SJ: EPWM sync