本篇讲述点亮LED。一.原理查阅用户手册绿灯LD10控制引脚为PG12,红灯LD9控制引脚为PD3,且都是低电平有效。二.代码准备1.引脚配置如下2.main函数。 生成代码修改main函数如下复制/*** [urlhome.php?modspaceuid247401]brief[/url] The application entry point.*retvalint*/intmain(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_ICACHE_Init();/* USER CODE BEGIN 2 */HAL_GPIO_WritePin(LED_GREEN_GPIO_Port, LED_GREEN_Pin, GPIO_PIN_SET);HAL_GPIO_WritePin(LED_RED_GPIO_Port, LED_RED_Pin, GPIO_PIN_RESET);/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while(1){HAL_GPIO_TogglePin(LED_GREEN_GPIO_Port, LED_GREEN_Pin);HAL_GPIO_TogglePin(LED_RED_GPIO_Port, LED_RED_Pin);/* Insert delay 100 ms */HAL_Delay(500);/* USER CODE END WHILE *//* USER CODE BEGIN 3 */}/* USER CODE END 3 */}三.测验编译后烧录复位开发板可以看到红绿LED灯交替闪烁。。---------------------作者dirty123链接https://bbs.21ic.com/icview-3435410-1-1.html来源21ic.com此文章已获得原创/原创奖标签著作权归21ic所有任何人未经允许禁止转载。