F2837xD: PWM assigned to CPU2 trigger ADC assigned to CPU1

Hi Gennadi,

Yes, this is definitely possible - when you configure the triggers in the ADC and select say ePWM1 the triggering mechanism will function the same regardless of which CPU controls the ePWM and which controls the ADC. Only one CPU can have access to the ADC control registers, but the ADC result registers are actually mapped for both CPUs, both CLAs, and both DMAs simultaneously, so you can process the different ADC results in parallel to save time (or you can process them redundantly for safety).

Hi Gennadi,

1) Is it possible to write to PWM Registers AQSFRC, AQCSFRC, CMPA, CMPB or read from PWM Registers TBSTS, TBCTR if the PWM module is assigned to the other CPU?

No, only master CPU has read/write access to peripheral register.

2) Can ADC EOC interrupt CPU2 if ADC is assigned to CPU1?

Yes, interrupts are connected to both the CPU irrespective of master ownership.

3) Are there some possibilities to compile application for the CPU1 and application for CPU2 and get one .out or one .hex file includes both applications together?

I don't think we have utility to combine the .out but flash programming toll should be able to load both the .out. I would suggest to start a new E2E post for this topic.

Regards,

Vivek Singh