TMS320F28379D: F2837x high resolution PWM

Hi,

Did you run the TI provided example as it is? What is your observation?
Does the code get struck inside SFO() for TI example as well?

Hi Subrahmanya,

I did run the TI provided example code "hrpwm_prdupdown_sfo_cpu01",

the program can return from SFO() function.

thanks,

Jiakai

Hi,

You may try to disable all other interrupts in your application, for the purpose of root causing the issue, and check if SFO function is complete.

Hi Subrahmanya,

I had a mistake that I thought the program doesn't return from SFO(), that's wrong.

The program can be returned from SFO() and it can be completed after being called

5 or 6 times but PWM outputs are wrong.

(PWM2's duty cycle is 30%, and the carrier wave is leading PWM1 for 90 degree.

but when running this program, PWM2A is always high and PWM2B is always low)

Could you please check PWM's register setting for me?

thanks,

Jiakai