基于stm32f103c8t6双车蓝牙通信代码
时间: 2023-07-24 21:02:04 浏览: 78
好的,以下是一个简单的基于STM32F103C8T6双车蓝牙通信的代码示例,供您参考:
```
#include "stm32f10x.h"
#include "usart.h"
#define USART1_DR_Base 0x40013804
#define MAX_STRLEN 100 // this is the maximum string length of our string in characters
volatile char received_string[MAX_STRLEN+1]; // this will hold the received string
void USART1_IRQHandler(void)
{
static uint16_t rx_index = 0;
char rx = USART1->DR;
if ((rx_index == 0) && (rx == '\r'))
{
// Ignore '\r' character
}
else if (rx == '\n')
{
received_string[rx_index] = 0x00; // add null termination
rx_index = 0;
}
else
{
received_string[rx_index++] = rx;
if (rx_index > MAX_STRLEN)
{
rx_index = 0;
}
}
}
void USART1_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
// Enable clocks
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA, ENABLE);
// Configure USART1 Tx (PA9) as alternate function push-pull
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);
// Configure USART1 Rx (PA10) as input floating
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// Configure USART1
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);
// Enable USART1 RX interrupt
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
// Configure and enable USART1 interrupt
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);
// Enable USART1
USART_Cmd(USART1, ENABLE);
}
void USART1_Send(char *pucBuffer, uint32_t ui32Count)
{
while(ui32Count--)
{
USART_SendData(USART1, (uint16_t) *pucBuffer++);
while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET)
{
}
}
}
void Delay(__IO uint32_t nCount)
{
while(nCount--)
{
}
}
int main(void)
{
USART1_Init();
while(1)
{
if (received_string[0] != '\0')
{
USART1_Send(received_string, strlen(received_string));
received_string[0] = '\0';
}
Delay(0xFFFFF);
}
}
```
该代码实现了基于USART1和STM32F103C8T6的简单双车蓝牙通信。在这个示例中,我们使用USART1作为通信接口,并使用中断处理程序处理接收到的字符。在主循环中,我们检测是否接收到了新的字符串,并将其发送回给发送方。
需要注意的是,该示例代码并不包含与双车蓝牙相关的代码,因为您并没有提供更多的关于您的具体需求的信息。如果您需要更多的帮助,可以提供更多的详细信息,以便我能够更好地帮助您。
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