Other Parts Discussed in Thread: PMP23126
Hi,
1) In my PCMC based PSFB converter, that is designed based on PMP23126, I turn-off my PWM gating signals by using below lines at initial startup sequence. Then I clear PWMs in order to use them.
EPWM_forceTripZoneEvent(EPWM1_BASE, EPWM_TZ_FORCE_EVENT_OST); EPWM_forceTripZoneEvent(EPWM2_BASE, EPWM_TZ_FORCE_EVENT_OST); EPWM_forceTripZoneEvent(EPWM3_BASE, EPWM_TZ_FORCE_EVENT_OST);
PWM1 and PWM3 works fine but PWM2A or PWM2B doesn't get OFF. How can I resolve this issue?
2) At initial start up of my board, I want to init PWMs but never see any PWM signals at oscilloscope. I followed PMP23126 and applied following sequence. However, they are turned on at an instant and later immediately turned off during start. (PWM2A or PWM2B (one of it) always provides PWM signals as my question 1)
DisablePWMCLKCounting
Inits
Force TripzoneEvent as OST
EnablePWMCLKCounting
Setting Pins as PWM
Thanks in advance.