Starterware/TMS320F28377D: How to ensure generated only one cmpc event when EPWM works at the up-down counter mode of 28377

Shook,

You can use the below PWM register bit fields to achieve this.

1) ETSEL.SOCASEL (or) SOCBSEL

2) ETSEL.INTSELCMP

Regards,
Manoj

Hi,Manoj
1) ETSEL.SOCASEL (or) SOCBSEL

2) ETSEL.INTSELCMP
These set is configuration of the soc. This soc start the ADC converttion, This signal can synchronize the SDFM module? Thank you！
regard
shook

Shook,

I made a mistake in my earlier suggestion. You try should be configuring the below registers.

1) ETSEL.INTSEL

2) ETSEL. INTSELCMP

Regards,
Manoj

HI! Manoj
I think the synchronized by EPWM11 is the cmpc and cmpd event (when the TBcount equal to the cmpc or cmpd the synchronization will happend. the sdfm module will reset.), the synchronization source is not the intterupt of cmpc and cmpd .SO i think the synchronization of sdfm model has noting to do the ET submodel of the EPWM.
regards
shook

I have used this feature couple of years ago to achieve 1 CMPC event in UP_DOWN mode. So, I reasonably certain this should work. Did you try the solution suggested?

-Manoj

hi，Manoj
I will try your suggestion, then i will tell you the result, thank you!

Is this resolved?