hc-05蓝牙模块stm32代码

以下是使用STM32控制HC-05蓝牙模块的示例代码：

#include "stm32f10x.h"
#include "stdio.h"
#include "string.h"

#define USARTx USART1

#define USARTx_TX_GPIO_PORT    GPIOA
#define USARTx_TX_GPIO_PIN     GPIO_Pin_9
#define USARTx_RX_GPIO_PORT    GPIOA
#define USARTx_RX_GPIO_PIN     GPIO_Pin_10

#define USARTx_CTS_GPIO_PORT   GPIOA
#define USARTx_CTS_GPIO_PIN    GPIO_Pin_11
#define USARTx_RTS_GPIO_PORT   GPIOA
#define USARTx_RTS_GPIO_PIN    GPIO_Pin_12

void RCC_Configuration(void)
{
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1, ENABLE);
}

void GPIO_Configuration(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;

    /* Configure USARTx_Rx as input floating */
    GPIO_InitStructure.GPIO_Pin = USARTx_RX_GPIO_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStructure);

    /* Configure USARTx_Tx as alternate function push-pull */
    GPIO_InitStructure.GPIO_Pin = USARTx_TX_GPIO_PIN;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStructure);

    /* Configure USARTx_CTS as input floating */
    GPIO_InitStructure.GPIO_Pin = USARTx_CTS_GPIO_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(USARTx_CTS_GPIO_PORT, &GPIO_InitStructure);

    /* Configure USARTx_RTS as alternate function push-pull */
    GPIO_InitStructure.GPIO_Pin = USARTx_RTS_GPIO_PIN;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_Init(USARTx_RTS_GPIO_PORT, &GPIO_InitStructure);
}

void USART_Configuration(void)
{
    USART_InitTypeDef USART_InitStructure;

    /* USARTx configuration ------------------------------------------------------*/
    /* USARTx configured as follow:
          - BaudRate = 9600 baud  
          - Word Length = 8 Bits
          - One Stop Bit
          - No parity
          - Hardware flow control disabled (RTS and CTS signals)
          - Receive and transmit enabled
    */
    USART_InitStructure.USART_BaudRate = 9600;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;

    USART_Init(USARTx, &USART_InitStructure);

    /* Enable USARTx */
    USART_Cmd(USARTx, ENABLE);
}

void NVIC_Configuration(void)
{
#ifdef  VECT_TAB_RAM  
    /* Set the Vector Table base location at 0x20000000 */
    NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else  /* VECT_TAB_FLASH  */
    /* Set the Vector Table base location at 0x08000000 */
    NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
}

int fputc(int ch, FILE *f)
{
    /* 发送一个字节数据到USARTx */
    USART_SendData(USARTx, (uint8_t) ch);

    /* 等待发送完毕 */
    while (USART_GetFlagStatus(USARTx, USART_FLAG_TXE) == RESET);

    return ch;
}

int fgetc(FILE *f)
{
    /* 等待串口数据 */
    while (USART_GetFlagStatus(USARTx, USART_FLAG_RXNE) == RESET);

    return (int) USART_ReceiveData(USARTx);
}

int main(void)
{
    RCC_Configuration();

    GPIO_Configuration();

    USART_Configuration();

    NVIC_Configuration();

    printf("HC-05 Bluetooth Module Test\r\n");

    while (1)
    {
        /* 等待接收数据 */
        while (USART_GetFlagStatus(USARTx, USART_FLAG_RXNE) == RESET);

        /* 读取接收到的数据 */
        uint8_t ch = USART_ReceiveData(USARTx);

        /* 将接收到的数据通过USART发送回去 */
        USART_SendData(USARTx, ch);
    }
}

在上面的示例中，我们使用USART1与HC-05蓝牙模块进行通信。你可以根据需要修改引脚和波特率等参数。同时，我们使用printf和scanf函数来简化输入和输出操作。