stm32 通过串口进行信息交流 并控制led亮灭

h  关闭黄色

l  关闭蓝色

g 关闭绿色

a 打开全部

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_USART1_UART_Init();

  /* USER CODE BEGIN 2 */

  /* USER CODE END 2 */

  /* Infinite loop */

  /* USER CODE BEGIN WHILE */

  while (1)  //ËÀÑ­»·  ²é¿´Ö´ÐÐЧ¹û

  {

  /* USER CODE END WHILE */

  /* USER CODE BEGIN 3 */

uint8_t ch[10]='';

HAL_UART_Receive(&huart1, ch, 10, 200);

if(ch[0] == 'l')

{

HAL_GPIO_WritePin(GPIOB, GPIO_PIN_1, GPIO_PIN_SET);

HAL_UART_Transmit(&huart1, '   blue off   ', 10, 200);

HAL_Delay(500);

}

else if(ch[0]=='g')

{

HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0, GPIO_PIN_SET);

HAL_UART_Transmit(&huart1, '   grean off   ', 10, 200);

HAL_Delay(500);

}

else if(ch[0]=='h')

{

HAL_GPIO_WritePin(GPIOB, GPIO_PIN_2, GPIO_PIN_SET);

HAL_UART_Transmit(&huart1, '   yellow off   ', 10, 200);

HAL_Delay(500);

}

else if(ch[0]=='a')

{

HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2, GPIO_PIN_RESET);

HAL_UART_Transmit(&huart1, '   all led on  ', 10, 200);

HAL_Delay(500);

}

  }

  /* USER CODE END 3 */

}

简单开关控制

#include 'main.h'

#include 'stm32f0xx_hal.h'

/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private variables ---------------------------------------------------------*/

UART_HandleTypeDef huart1;

/* USER CODE BEGIN PV */

/* Private variables ---------------------------------------------------------*/

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/

void SystemClock_Config(void);

static void MX_GPIO_Init(void);

static void MX_USART1_UART_Init(void);

/* USER CODE BEGIN PFP */

/* Private function prototypes -----------------------------------------------*/

/* USER CODE END PFP */

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/**

  * @brief  The application entry point.

  *

  * @retval None

  */

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_USART1_UART_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 */

uint8_t data = 0;

HAL_UART_Receive(&huart1, &data, 1, 0);

if(data == 'l')

{

HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2, GPIO_PIN_RESET);

HAL_UART_Transmit(&huart1, &data, 1, 0);

}

else if(data == 'h')

{

HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2, GPIO_PIN_SET);

HAL_UART_Transmit(&huart1, &data, 1, 0);

}

  }

  /* USER CODE END 3 */

}