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- 金钱
- 28
- 注册时间
- 2020-2-24
- 在线时间
- 14 小时
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1金钱
#include "stm32f10x.h"
void My_USART1_Init(void)
{
GPIO_InitTypeDef GPIO_InitStrue;
USART_InitTypeDef USART_InitStrue;
NVIC_InitTypeDef NVIC_InitStrue;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1|RCC_APB2Periph_AFIO,ENABLE);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
NVIC_InitStrue.NVIC_IRQChannel=USART1_IRQn;
NVIC_InitStrue.NVIC_IRQChannelCmd=ENABLE;
NVIC_InitStrue.NVIC_IRQChannelPreemptionPriority=2;
NVIC_InitStrue.NVIC_IRQChannelSubPriority=2;
NVIC_Init(&NVIC_InitStrue);
GPIO_InitStrue.GPIO_Mode=GPIO_Mode_AF_PP;
GPIO_InitStrue.GPIO_Pin=GPIO_Pin_9;
GPIO_InitStrue.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStrue);
GPIO_InitStrue.GPIO_Mode=GPIO_Mode_IN_FLOATING;
GPIO_InitStrue.GPIO_Pin=GPIO_Pin_10;
GPIO_InitStrue.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStrue);
USART_InitStrue.USART_BaudRate=115200;
USART_InitStrue.USART_HardwareFlowControl=USART_HardwareFlowControl_None;
USART_InitStrue.USART_Mode=USART_Mode_Tx|USART_Mode_Rx;
USART_InitStrue.USART_Parity=USART_Parity_Even;
USART_InitStrue.USART_StopBits=USART_StopBits_1;
USART_InitStrue.USART_WordLength=USART_WordLength_9b;
USART_Init(USART1,&USART_InitStrue);
USART_ITConfig(USART1,USART_IT_RXNE,ENABLE);//开启接收中断
USART_Cmd(USART1,ENABLE);//使能串口1
}
void USART1_IRQHandler(void)
{
u8 res;
if(USART_GetITStatus(USART1,USART_IT_RXNE!= RESET))
{
res= USART_ReceiveData(USART1);
USART_SendData(USART1,res);
}
}
int main(void)
{
My_USART1_Init();
while(1);
}
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