用stm32zet6写一个使用串口三通过hc08蓝牙模块发送和接收数据的程序
时间: 2023-06-12 16:04:21 浏览: 127
好的,以下是基于STM32F103ZET6的串口三通过HC-08蓝牙模块发送和接收数据的程序。需要注意的是,具体的引脚连接和串口配置需要根据实际情况进行调整。
```c
#include "stm32f10x.h"
void GPIO_Configuration(void);
void USART_Configuration(void);
void NVIC_Configuration(void);
void delay_ms(uint32_t ms);
void USART_SendString(USART_TypeDef* USARTx, char* str);
void USART_SendChar(USART_TypeDef* USARTx, char ch);
int main(void)
{
char buffer[50];
uint8_t i;
GPIO_Configuration();
USART_Configuration();
NVIC_Configuration();
while (1)
{
// 发送数据
USART_SendString(USART3, "Hello, HC-08!\r\n");
delay_ms(1000);
// 接收数据
i = 0;
while (USART_GetFlagStatus(USART3, USART_FLAG_RXNE) == RESET);
buffer[i++] = USART_ReceiveData(USART3);
while (buffer[i - 1] != '\n')
{
while (USART_GetFlagStatus(USART3, USART_FLAG_RXNE) == RESET);
buffer[i++] = USART_ReceiveData(USART3);
}
buffer[i] = '\0';
USART_SendString(USART3, buffer);
}
}
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
// HC-08模块的TX引脚对应STM32的PB10
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
// HC-08模块的RX引脚对应STM32的PB11
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
void USART_Configuration(void)
{
USART_InitTypeDef USART_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
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(USART3, &USART_InitStructure);
USART_Cmd(USART3, ENABLE);
}
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
USART_ITConfig(USART3, USART_IT_RXNE, ENABLE);
}
void delay_ms(uint32_t ms)
{
uint32_t i;
for (i = 0; i < ms; i++)
{
uint16_t j;
for (j = 0; j < 5000; j++);
}
}
void USART_SendString(USART_TypeDef* USARTx, char* str)
{
while (*str)
{
USART_SendChar(USARTx, *str++);
}
}
void USART_SendChar(USART_TypeDef* USARTx, char ch)
{
while (USART_GetFlagStatus(USARTx, USART_FLAG_TXE) == RESET);
USART_SendData(USARTx, ch);
}
```
在这个程序中,我们通过USART3与HC-08蓝牙模块进行通信。在发送数据时,我们使用了`USART_SendString`函数,它会将一个字符串发送出去。在接收数据时,我们首先等待接收到第一个字符,然后通过循环读取剩余的字符,直到读取到了一个换行符。然后我们把接收到的数据通过`USART_SendString`函数发送出去。
需要注意的是,这个程序中的串口配置是9600波特率,8位数据位,无校验位,1位停止位。如果你的HC-08模块的配置不同,需要相应地进行调整。
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