Hi, I use NUCLEO-F303RE and i want to program 4 PWM: - TIM1-CH1 (PC0) : fail (no PWM signal) - TIM1-CH3 (PC2) : ok - TIM1-CH3 (PC3) : ok - TIM2-CH3 (PB10) : ok All PWM have same setup (RCY 50%). I test TIM1-CH2 (PC1) and no PWM on output.

[waclawek.jan]

Read out and check/post TIM and relevant GPIO registers content.

Check in the Nucleo board's documentation, that the given pins are brought out to the headers, there are no disconnected jumpers/solder bridges on them, and don't conflict with some other on-board resources.

JW

[CALVE]

I modify the Nucleo board and now it run well. Thanks waclawek.