给我一份STM32串口配置的代码
时间: 2023-12-09 16:04:42 浏览: 29
好的,以下是 STM32 的串口配置代码:
```
#include "stm32f10x.h"
#include <stdio.h>
#define USART_BAUDRATE 115200
#define USARTx USART1
#define RCC_APB2Periph_GPIOx RCC_APB2Periph_GPIOA
#define RCC_APBxPeriph_USARTx RCC_APB2Periph_USART1
#define GPIO_RxTxPin GPIO_Pin_10|GPIO_Pin_9
#define GPIOx GPIOA
#define USART_IRQ USART1_IRQn
void USART_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APBxPeriph_USARTx | RCC_APB2Periph_GPIOx, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_RxTxPin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOx, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = USART_BAUDRATE;
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(USARTx, &USART_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel = USART_IRQ;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
USART_ITConfig(USARTx, USART_IT_RXNE, ENABLE);
USART_Cmd(USARTx, ENABLE);
}
void USART_IRQ_Configuration(void)
{
if (USART_GetITStatus(USARTx, USART_IT_RXNE) != RESET)
{
USART_SendData(USARTx, USART_ReceiveData(USARTx));
}
}
int main(void)
{
USART_Configuration();
while (1)
{
//主函数留空
}
}
```