i want to send only 1 Pulse and i thought to use a timer.
I use the Board B-L475 iot and i want to generate the pulse on TIM2_ch3 (PA2).
I had build the HAL with stm32cubemx.
Before the while(1) begin i have inserted the following Code:
HAL_StatusTypeDef ret=HAL_TIM_OC_Start(&htim2, TIM_CHANNEL_3);
but when i debug TIM2->are every time 0.
What had i do wrong???
I have the following config: