关于串口收发错误

arao和xiaomi · 发表于 2017-2-21 16:48:04

void USART1_IRQHandler(void)       //′®¿ú1ÖD¶Ï′|àíoˉêy
{
  unsigned int i;
  if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) //¼ì2aêÇ·ñêÇ½óêÕÖD¶Ï
  {
/* Read one byte from the receive data register */
RxBuffer[RxCounter++] = USART_ReceiveData(USART1); //½óêÕò»×Ö½úêy¾Y
if(RxCounter == DataSizeOfReceiver) //èç1û½óêÕêy¾Yá¿μèóú×üêy¾Yá¿
{
   for(i=0; i< RxCounter; i++) TxBuffer[i]=RxBuffer[i]; //½«½óêÕμ½μÄêy¾Y×a′æμ½·￠Ëíêy×é
   RxCounter=0; //½óêÕ¼ÆêyÆ÷Çåáã
      USART_ITConfig(USART1, USART_IT_TXE, ENABLE); //′ò¿a′®¿ú1·￠ËíÖD¶Ï￡¬′ò¿aoó»áá￠¼′Ö′DDÖD¶Ï·￠Ëí2ù×÷
}

  }

  if(USART_GetITStatus(USART1, USART_IT_TXE) != RESET)    //¼ì2aêÇ·ñêÇ·￠ËíÖD¶Ï
  {
   /* Send one byte */
USART_SendData(USART1, TxBuffer[TxCounter++]);    //·￠Ëíò»×Ö½úêy¾Y
if(TxCounter == DataSizeOfTransfer)    //èç1û·￠Ëíêy¾Yá¿μèóú×üêy¾Yá¿
{
   USART_ITConfig(USART1, USART_IT_TXE, DISABLE);    //1Ø±Õ′®¿ú·￠ËíÖD¶Ï￡¬í￡Ö1·￠Ëí
      GPIO_WriteBit(GPIOA, GPIO_Pin_1, (BitAction)(!GPIO_ReadOutputDataBit(GPIOA, GPIO_Pin_1)));
   TxCounter=0;    //·￠Ëí¼ÆêyÆ÷Çåáã
}
  }
}