Part Number: TMS320F28065
Hi Champs,
I have a question about ePWM of F28065.
Since we want to run PWM at low speed this time, we will divide the system clock.
I want to use multiple PWMs and set them with different division ratios.
Then, I want to output the synchronization signal from the lowest speed PWM and match the start point of PWM.
I would like to use it as shown in Figure 1.
SYSCLKOUT is 90MHz.
EPWM1 has a prescaler of 4096.
EPWM2 has a prescaler of 256.
EPWM3 has a prescaler of 64.
Each has a different prescaler.
I want to synchronize EPWM2 and EPWM3 by outputting a synchronization signal when the count of EPWM1 is 0.
Are there any problems with such usage?
In 3.2.2.3.2 Time-Base Clock Synchronization on P255 of the Technical Reference Manual(spruh18i.pdf), there was a description "For perfectly synchronized TBCLKs, the prescalers for each ePWM module must be set identically."
Is there any problem with this usage if I just want to restart other EPWM counters at the timing of EPWM1?
Thank you very much for help.
Best regards,
Yuka
