【iCore4 双核心板_ARM】例程六:IWDG看门狗实验——复位ARM

实验原理:

  STM32内部包含独立看门狗,通过看门狗可以监控程序远行,程序运行错误时,

未在规定时间内喂狗,自动复位ARM。本实验通过按键按下,停止喂狗,制造程序运行

错误,从而产生复位。

核心代码:

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_IWDG_Init();

  /* USER CODE BEGIN 2 */

  /* USER CODE END 2 */

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

  /* USER CODE BEGIN 3 */
        while(ARM_KEY_STATE == KEY_DOWN);                           
        HAL_IWDG_Refresh(&hiwdg); 
        LED_RED_ON;
        LED_GREEN_OFF;
        LED_BLUE_OFF;
        HAL_Delay(500);
        LED_RED_OFF;
        LED_GREEN_ON;
        LED_BLUE_OFF;
        HAL_Delay(500);
        LED_RED_OFF;
        LED_GREEN_OFF;
        LED_BLUE_ON;
        HAL_Delay(500);
  }
  /* USER CODE END 3 */

}

源代码下载链接:

链接:http://pan.baidu.com/s/1jI7lV74 密码:16ht

iCore4链接:

posted @ 2017-08-14 14:11  XiaomaGee  阅读(636)  评论(0编辑  收藏  举报