Hi I'm new to STM32 and I am exploring this MCU. I have the STM32F103C8T6 MCU. I just want to ask some help how to enable PWM using interrupts. I am using TIM2 CH1 and set them on the CubeMX. Now I use PA6 as input switch to enable and disable the PWM. However after flashing the MCU the PWM is always activated and cannot be disabled by the PA6 pin. Appreciate if you could tell me what is wrong with the code. Here's my code:
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_TIM2_Init();
/* USER CODE BEGIN 2 */
HAL_TIM_PWM_Start_IT(&htim2, TIM_CHANNEL_1);
/* USER CODE END 2 */
/* Here is the callback*/
void HAL_TIM_PWM_PulseFinishedCallback(TIM_HandleTypeDef *htim)
{
/*Toggle PA6 to enable/ disable the PWM*/
if(!(HAL_GPIO_ReadPin(BUTTON_PWM1_GPIO_Port, BUTTON_PWM1_Pin)))
{
if(htim -> Instance == TIM2)
{
HAL_GPIO_TogglePin(LED_PWM1_GPIO_Port, LED_PWM1_Pin);
}
}
else
{
HAL_GPIO_WritePin(LED_PWM1_GPIO_Port, LED_PWM1_Pin, GPIO_PIN_RESET);
}
}
