基于stm32f103c8t6串口蓝牙通信代码
时间: 2023-07-30 16:06:08 浏览: 111
好的,下面是基于stm32f103c8t6的串口蓝牙通信代码,仅供参考:
首先,需要在GPIO中配置USART的引脚。例如,将USART1的TX引脚设置为PA9,RX引脚设置为PA10:
```
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;
// 配置USART1 TX引脚
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// 配置USART1 RX引脚
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
```
然后,需要在USART中配置串口参数。例如,将USART1的波特率设置为9600,数据位设置为8位,停止位设置为1位:
```
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
USART_InitTypeDef USART_InitStructure;
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(USART1, &USART_InitStructure);
USART_Cmd(USART1, ENABLE);
```
接下来,需要在USART中启用中断。例如,启用USART1的接收中断:
```
NVIC_InitTypeDef NVIC_InitStructure;
// 使能USART1接收中断
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
// 使能USART1接收中断
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
```
然后,在USART1的中断服务函数中,可以接收蓝牙模块发送的数据。例如,接收一个字节:
```
void USART1_IRQHandler(void)
{
if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
uint8_t byte = USART_ReceiveData(USART1);
// 处理接收到的数据
}
}
```
最后,可以通过USART1的发送函数向串口发送数据。例如,向蓝牙模块发送一个字节:
```
USART_SendData(USART1, byte);
```
以上是基于stm32f103c8t6的串口蓝牙通信代码,仅供参考。实际使用时,还需要根据具体的蓝牙模块和需求进行修改和完善。
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