写一段stm 32串口代码
时间: 2023-04-08 14:03:35 浏览: 71
下面是一段STM32串口代码:
#include "stm32f4xx.h"
int main(void)
{
// enable clock for USART2
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
// USART2 configuration
USART_InitTypeDef USART_InitStructure;
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(USART2, &USART_InitStructure);
// enable USART2
USART_Cmd(USART2, ENABLE);
while (1)
{
// wait until data is received
while (USART_GetFlagStatus(USART2, USART_FLAG_RXNE) == RESET);
// read data
uint8_t data = USART_ReceiveData(USART2);
// send data
USART_SendData(USART2, data);
}
}
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