TMS320F280039C: ePWMB inverted version of ePWMA

Hi Irene,

Appologies for the delay. Please expect the response before EOW.

Best,

Uttam

Hi Irene,

I have tested an example for the usecase. Yes, your outputs should change if you change HRCNFG.bit.SELOUTB registers on the run. The change in HRCNFG either in HR mode enable/disable case this will impact your PWMs as these registers are accessible. 

In the Technical Reference Manual (20.17.2.17), it mentions ''This register is only accessible on EPWM modules with HRPWM capabilities''.

Best Regards,

Uttam

Hi Uttam,

Thank you for testing the usecase. The ePWM module has HRPWM capabilities. And I am not setting HRCNFG.bit.SELOUTB = 1 on the run but during initialization itself.

Just to reiterate my understanding:

Irrespective of whether HR mode is enabled or disable, the HRCNFG.bit.SELOUTB bit will impact my PWM output.

And even if I get a TRIP signal and I have set both PWMA and PWMB to be low during trip condition, it will be inversion of each other because  HRCNFG.bit.SELOUTB bit is set.

Is this right?

Thank you Uttam!