STM32利用串口一冲缓存区取出数据代码实现
时间: 2023-04-06 11:01:09 浏览: 167
你可以使用以下代码实现 STM32 利用串口一冲缓存区取出数据:
```c
#include "stm32f10x.h"
#define BUFFER_SIZE 64
uint8_t buffer[BUFFER_SIZE];
uint8_t buffer_index = 0;
void USART1_IRQHandler(void)
{
if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
buffer[buffer_index++] = USART_ReceiveData(USART1);
if (buffer_index >= BUFFER_SIZE)
{
buffer_index = 0;
}
}
}
int main(void)
{
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
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_Init(USART1, &USART_InitStructure);
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);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
USART_Cmd(USART1, ENABLE);
while (1)
{
// Do something with the received data
}
}
```
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