USART1通信问题

润土 · 发表于 2016-3-21 08:23:39

我想实现检测$和*之间的内容，在检测到完整的一帧数据后输出。但现在的问题是无法进入串口中断。
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
#ifdef VECT_TAB_RAM
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
NVIC_InitStructure.NVIC_IRQChannel =USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

void USART1_IRQHandler(void)
{
      static uint8_t i=0;
      uint8_t buffer;
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
   USART_ClearITPendingBit(USART1,USART_IT_RXNE);
   if(mark==0)
   {
   buffer=USART_ReceiveData(USART1)&0xFF;
   GetData[i++]=buffer;
   data_now=i-1;
}
if ((GetData[data_now]==0x24)&&(mark==0))
{
data_start=data_now;
}
if((GetData[data_start]==0x24)&&(GetData[data_now]==0x2A)&&(mark==0))
   {
   mark=1;
   data_length=i-data_start;
data_end=data_now;
data_end_1=data_end+1;
   i=0;
   }
}
if(USART_GetFlagStatus(USART1,USART_FLAG_ORE) == SET)
{
USART_ClearFlag(USART1,USART_FLAG_ORE);
USART_ReceiveData(USART1);
}
}

void DealData()
{
uint8_t k;
if(mark==1)
   {
   for (k=data_start;k<data_length;k++)
   {
USART_SendData(USART1,GetData[k]);
mark=1;
}
if(k==data_length)
      {
      mark=0;
      }
   }
}