程序没报错，但是在串口调试助手发送数据时，乱码，甚至发不出去
#include "stm32f10x.h"
#include "sys.h"
#include"delay.h"
#include"usart.h"
void My_USART1_Init(void)
{
GPIO_InitTypeDef GPIO_InitStrue;
USART_InitTypeDef USART_InitStrue;
NVIC_InitTypeDef NVIC_InitStrue;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1,ENABLE);//ʹÄÜʱÖÓ
GPIO_InitStrue.GPIO_Mode=GPIO_Mode_AF_PP;
GPIO_InitStrue.GPIO_Pin=GPIO_Pin_9;
GPIO_InitStrue.GPIO_Speed=GPIO_Speed_10MHz;
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_10MHz;
GPIO_Init(GPIOA,&GPIO_InitStrue);//IO¿Ú³õʼ»¯
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_No;
USART_InitStrue.USART_StopBits=USART_StopBits_1;
USART_InitStrue.USART_WordLength=USART_WordLength_8b;
USART_Init(USART1,&USART_InitStrue);//³õʼ»¯´®¿Ú
USART_Cmd(USART1,ENABLE);//ʹÄÜ´®¿Ú1
USART_ITConfig(USART1,USART_IT_RXNE,ENABLE);//¿ªÆô½ÓÊÕÖжÏ
NVIC_InitStrue.NVIC_IRQChannel=USART1_IRQn;
NVIC_InitStrue.NVIC_IRQChannelCmd=ENABLE;
NVIC_InitStrue.NVIC_IRQChannelPreemptionPriority=1;
NVIC_InitStrue.NVIC_IRQChannelSubPriority=1;
NVIC_Init(&NVIC_InitStrue);//ÖжÏÓÅÏȼ¶ÉèÖÃ
}
void USART1_IRQHandlerr(void)
{ u8 res;
if(USART_GetITStatus(USART1,USART_IT_RXNE))
{
res=USART_ReceiveData(USART1);
USART_SendData(USART1,res);
}
}
int main(void)
{
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
My_USART1_Init();
while (1);
}
