stm32 单片机 串口接收程序
时间: 2023-08-01 18:15:13 浏览: 50
下面是一个基于STM32单片机的串口接收程序示例,您可以根据需要进行修改和调整:
``` c
#include "stm32f10x.h"
#define BUFFER_SIZE 256
uint8_t buffer[BUFFER_SIZE];
uint16_t index = 0;
uint8_t flag = 0;
void USART1_IRQHandler(void)
{
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
buffer[index++] = USART_ReceiveData(USART1);
if(index >= BUFFER_SIZE)
{
index = 0;
}
flag = 1;
}
}
int main(void)
{
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
// 使能时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1, ENABLE);
// 配置USART1的GPIO
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);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// 配置USART1
USART_InitStructure.USART_BaudRate = 115200;
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);
// 使能USART1的中断
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
// 配置中断优先级
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);
// 启动USART1
USART_Cmd(USART1, ENABLE);
while(1)
{
if(flag == 1)
{
// 处理接收到的数据
// ...
index = 0;
flag = 0;
}
}
}
```
以上是一个基于STM32单片机的串口接收程序示例,仅供参考。如果您有更多的需求,可以自行搜索相关资料或者咨询专业人士。
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