基于stm32F4的hc-05的蓝牙通信代码

基于STM32F4微控制器的HC-05蓝牙模块通信通常涉及硬件初始化、软件配置和数据传输。以下是一个简化的代码示例，展示了如何使用Keil MDK这样的IDE进行开发：

#include "stm32f4xx.h"
#include "BlueNRG.h"

// HC-05蓝牙枚举
typedef enum {
    HC05_IDLE = 0,
    HC05_SENDING,
    HC05_RECEIVING,
} HC05_State;

HC05_State state;
uint8_t data_to_send[20];
uint8_t incoming_data[20];

void Bluetooth_Init(void) {
    // 初始化串口
    USART_InitTypeDef USART_InitStructure;
    //... (这里设置USART配置)

    // 初始化蓝牙模块
    BlueNRG_Init(&BLUENRG);
    BlueNRG_SetBaudRate(9600); // 设置波特率
    BlueNRG_Cmd_UART(ENABLE); // 开启UART通信

    state = HC05_IDLE;
}

void Bluetooth_Handler(void) {
    if (state == HC05_SENDING) {
        if (BlueNRG_GetTxStatus() == TX_COMPLETE) {
            state = HC05_IDLE;
            BlueNRG_Reset();
        }
    } else if (state == HC05_RECEIVING) {
        uint8_t received = BlueNRG_ReadChar(); // 读取接收到的数据
        if (received != '\r' && received != '\n') { // 检查是否接收到完整数据
            incoming_data[0] = received; // 存储数据
            state = HC05_RECEIVING;
        } else {
            // 处理接收到的数据...
        }
    }
}

void SendCommand(uint8_t *command, uint16_t length) {
    state = HC05_SENDING;
    for (uint16_t i = 0; i < length; ++i) {
        BlueNRG_WriteChar(command[i]);
    }
}

//... (其他主循环处理和中断响应部分)