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- Update:
- 2016-01-22
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Description: void USART1_IRQHandler(void) //串口1中断服务程序
{
u8 Res
#ifdef OS_TICKS_PER_SEC //如果时钟节拍数定义了,说明要使用ucosII了.
OSIntEnter()
#endif
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) //接收中断(接收到的数据必须是0x0d 0x0a结尾)
{
Res =USART_ReceiveData(USART1) //(USART1->DR) //读取接收到的数据
if((USART_RX_STA&0x8000)==0)//接收未完成
{
if(USART_RX_STA&0x4000)//接收到了0x0d
{
if(Res!=0x0a)
USART_RX_STA=0 //接收错误,重新开始
else
USART_RX_STA|=0x8000 //接收完成了
}
else //还没收到0X0D
{
if(Res==0x0d)USART_RX_STA|=0x4000
else
{
USART_RX_BUF[USART_RX_STA&0X3FFF]=Res
USART_RX_STA++
if(USART_RX_STA>(USART_REC_LEN-1))USART_RX_STA=0 //接收数据错误,重新开始接收
}
}
}
}
#ifdef OS_TICKS_PER_SEC //如果时钟节拍数定义了,说明要使用ucosII了.
OSIntExit()
#endif
}
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