PWM Output on TIM3_CH1 not working

[Ala1980]

I started a new project using STM32CubeMX for a STM32F303VCTx, and used all the default options, and then configured the Timer3 for the all 4 channels as PWM ouptut (as in the snapshot).

I open the project using uvision V5.26 and change the main.c only be adding one line of starting the timer

HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_1);

I can compile and download it to the board, but I cant see any output on PC6 (Timer 3 / Ch1).

Could please someone tell me what I am still missing here?

[Imen GH]

Hello,

I have made a test to check and I don’t have any problem to generate PWM for TIM3_CH1 on PC6.

You will find attached my file main. C

Regards

[Ala1980]

@Imen GH thank you very much for your answer and time.​ 

Actually after long time waiting I gave up waiting for an answer here on this forum, so that right now I see your answer!

BTW, I could meantime get a PWM Signal with my code, the only point was that I should restart the board (RESET Button) in order to have it work!

Could you please be kind and tell me the reason why I must do this?