TMDXIDDK379D: Doubts about the official code of the SDFM trigger source

Hi Bob,

I will need to find another expert to ask about this since I am not too familiar with this reference design.

OK，thanks，I am waiting for your reply！

Sorry Bob, our expert on this platform is out of office, please expect a reply next week. 

Thanks for your attention！

Hi,

Bob said:

1. The code explains that pwm10 is used to passover pwm1 sync to pwm11 for SDFM sync, but in the code pwm10 has not been configured in any way, and I do not see any connection between him and pwm11, so how does it achieve synchronisation?

See Sync scheme in the ePWM TRM chapter. ePWM10 does not need to be fully configured for this purpose.

Bob said:

2.  PWM11.CMPC, PWM11.CMPD, PWM12.CMPC and PWM12.CMPD signals cannot synchronize the filters. This option is not being used in this example.

How do I understand this statement, is it because synchronous triggering is not possible, but rather they can only reset the SINC3 filter in hardware?

I think the comments in the code are incorrect. From the code it seems the PWM11 is being used to synchronize the SDFM module, as far as I can tell.

Best,

Kevin

OK，thanks！