[HAL库学习之路]7.定时器中断

记录自己的STM32的HAL库的学习之路，不定期更新…

一、Pinout

二、Clock Configuration

三、Configuration

定时器溢出时间

Tout=((arr+1)∗(psc+1))/Tclk

四、Generate Code

代码
定时器溢出时间为500ms，500ms翻转一次LED状态

int main(void)
{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration----------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_TIM3_Init();

  /* USER CODE BEGIN 2 */
  HAL_TIM_Base_Start_IT(&htim3);
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
  /* USER CODE END WHILE */

  /* USER CODE BEGIN 3 */

  }
  /* USER CODE END 3 */

}

void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
    static unsigned char ledState = 0;
    if (htim == (&htim3))
    {
        if (ledState == 0)
            HAL_GPIO_WritePin(GPIOF,GPIO_PIN_9,GPIO_PIN_RESET);
        else
            HAL_GPIO_WritePin(GPIOF,GPIO_PIN_9,GPIO_PIN_SET);
        ledState = !ledState;
    }
}