Cannot set full PWM

[Mario Luzeiro]

If I set the Counter Period (AutoReload Register) to max 0xFFFF and the TIM capture/compare register to 0xFFFF too, I cannot get a full width output, I still get one tick on output.

Is that expected?

[waclawek.jan · Accepted solution]

Yes. To achieve "full width", you have to set CCRx > ARR. Try with ARR=0xFFFE.

JW