Posted on June 08, 2018 at 10:50Your times is not started. To start it in your configuration you should use HAL_TIM_OC_Start_IT(&htim14, TIM_CHANNEL_1). Good place for it is /* User Code Begin 2 */. Additionally I see you have configured 0 in the pulse field of TIM14 (the value to which the timer will compare its current counter value).
