i'm struggeling to generate a pwm with 20Hz and a duty cycle of 50%. Running the clock with 120Mhz, i get a bus clock speed of 60Mhz. Even with the maximum prescaler of 128 I'm far away from 20Hz (cause the compare value would be > 16bit).
When I'm to use the fixed frequeny clock (MCGFFCLK) by setting C1[IREFS] to 1 and set the Clock Source Selection [CLKS] to 2, I do not get any output (when triggering the pin with a scope).
Do you have any hints for me what I've forgotten or could you tell me a different/better way to solve this?
Thanks and best regards!