實驗原理:
STM32內部包含視窗看門狗,通過看門狗可以監控程式執行,程式執行錯誤時,未在
規定時間喂狗(提前或超時),自動復位ARM,本實驗通過按鍵按下,停止喂狗,從而產
生復位。
核心程式碼:
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 */ HAL_Delay(300); /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_WWDG_Init(); /* USER CODE BEGIN 2 */ LED_RED_ON; /* 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_Delay(30); //30msι¹·Ò»´Î HAL_WWDG_Refresh(&hwwdg); //ι¹· } /* USER CODE END 3 */ }
原始碼下載連結:
連結:http://pan.baidu.com/s/1cizRjg 密碼:2s6f
iCore4連結: