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STM32F103RCT6+STM32CubeMX+keil5(MDK-ARM)+Flymcu实现简单的通信协议

news 2025/10/11 7:02:41

1、

2、配置

3、main.c

/* USER CODE BEGIN Header */
/********************************************************************************* @file           : main.c* @brief          : Main program body******************************************************************************* @attention** Copyright (c) 2023 STMicroelectronics.* All rights reserved.** This software is licensed under terms that can be found in the LICENSE file* in the root directory of this software component.* If no LICENSE file comes with this software, it is provided AS-IS.********************************************************************************/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "usart.h"
#include "gpio.h"/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stdio.h"            //包含标准输入输出头文件
#include "string.h"           //包含字符串函数头文件
/* USER CODE END Includes *//* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
#define LENGTH 4                 //数据缓冲区长度的宏定义,必须与数据包长度匹配
/* USER CODE END PTD *//* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD *//* USER CODE END PD *//* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM *//* USER CODE END PM *//* Private variables ---------------------------------------------------------*//* USER CODE BEGIN PV */
uint8_t RxBuffer[LENGTH];        //数据缓冲区
volatile uint8_t RxFlag = 0;     //数据接受标志:0为未完成,1为完成
uint8_t ErrFlag = 0;             //指令错误标志:0为正确,1为错误
/* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP *//* USER CODE END PFP *//* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 *//* USER CODE END 0 *//*** @brief  The application entry point.* @retval int*/
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 */printf("/*********Communication Protocol*********/\r\n");    //开机提醒printf("Please enter instruction:\r\n");printf("Head->0xaa Device->0x01 Operation->0x00/0x01 Tail->0x55\r\n");HAL_UART_Receive_IT(&huart1,(uint8_t *)RxBuffer,LENGTH);  //使能接收中断/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){/* USER CODE END WHILE *//* USER CODE BEGIN 3 */if(RxFlag){RxFlag = 0;            //清除标志//解析通讯协议if(RxBuffer[0] == 0xaa && RxBuffer[3] == 0x55)  //判断帧头帧尾{if(RxBuffer[1] == 0x01)           //判断设备码{if(RxBuffer[2] == 0x00)         //判断功能码_关闭指示灯{HAL_GPIO_WritePin(LED1_GPIO_Port, LED1_Pin, GPIO_PIN_SET);   // 关闭 LED1printf("LED is close!\r\n");}else if(RxBuffer[2] == 0x01)    //判断功能码_开启指示灯{HAL_GPIO_WritePin(LED1_GPIO_Port, LED1_Pin, GPIO_PIN_RESET); // 打开 LED1printf("LED is open!\r\n");}else                             //功能码错误{ErrFlag = 1;}}else                          //设备码错误{ErrFlag = 1;}}else                    //帧头帧尾错误{ErrFlag = 1;}if(ErrFlag)             //若出错则发送错误提示信息{printf("Communication Error!Please send again!\r\n");}//清除接收缓冲区以及错误标志，同时为下一次接受做准备ErrFlag = 0;RxBuffer[0] = 0;RxBuffer[1] = 0;RxBuffer[2] = 0;RxBuffer[3] = 0;}}/* USER CODE END 3 */
}/*** @brief System Clock Configuration* @retval None*/
void SystemClock_Config(void)
{RCC_OscInitTypeDef RCC_OscInitStruct = {0};RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};/** Initializes the RCC Oscillators according to the specified parameters* in the RCC_OscInitTypeDef structure.*/RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;RCC_OscInitStruct.HSEState = RCC_HSE_ON;RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;RCC_OscInitStruct.HSIState = RCC_HSI_ON;RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK){Error_Handler();}/** Initializes the CPU, AHB and APB buses clocks*/RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK){Error_Handler();}
}/* USER CODE BEGIN 4 */
int fputc(int ch,FILE *f)      //重定向
{HAL_UART_Transmit(&huart1,(uint8_t *)&ch,1,HAL_MAX_DELAY);return ch;
}
//只有当收满数据后才会进入串口接收中断回调函数！！！！！！！
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) //串口接收中断回调函数
{if(huart -> Instance == USART1){RxFlag = 1;HAL_UART_Receive_IT(&huart1,(uint8_t *)RxBuffer,LENGTH);  //准备下一次接收}
}
/* USER CODE END 4 *//*** @brief  This function is executed in case of error occurrence.* @retval None*/
void Error_Handler(void)
{/* USER CODE BEGIN Error_Handler_Debug *//* User can add his own implementation to report the HAL error return state */__disable_irq();while (1){}/* USER CODE END Error_Handler_Debug */
}#ifdef  USE_FULL_ASSERT
/*** @brief  Reports the name of the source file and the source line number*         where the assert_param error has occurred.* @param  file: pointer to the source file name* @param  line: assert_param error line source number* @retval None*/
void assert_failed(uint8_t *file, uint32_t line)
{/* USER CODE BEGIN 6 *//* User can add his own implementation to report the file name and line number,ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) *//* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

4、这个要设置