我的程序怎么进到中断里出不来了，大家帮我看看

只看该作者 · 2014-7-8 16:19

//发送数据
void USCIA0_Send(char *p_data,unsigned int i_length,unsigned int i_time)
{
unsigned  int i_ctr = 0;

S_Assist.C_CircutBusyFlag = 1;
USCIA0_TX_EN;
Delayms(1);
S_HartData.I_RxCtr = 0;
S_HartData.I_RxTotalCtr = 0;
S_HartData.C_RxOK = 0;
S_HartData.I_TxCtr = 0;
S_HartData.C_TxOK = 0;
S_HartData.I_TxTotalCtr = i_length+4;
memset(&S_HartData.C_TxBuf[0],0xFF,4);
memcpy(&S_HartData.C_TxBuf[4],p_data,i_length);
UCA0TXBUF =  S_HartData.C_TxBuf[0];
do
{
      i_ctr++;
}while(!S_HartData.C_RxOK && i_ctr<=i_time);
S_Assist.C_CircutBusyFlag = 0;
}

#pragma vector=USCIAB0TX_VECTOR
__interrupt void USCI0TX_ISR(void)
{

   if(S_HartData.I_TxCtr >= S_HartData.I_TxTotalCtr)
   {
      S_HartData.I_TxCtr = 0;
      S_HartData.I_TxTotalCtr = 0;

      S_HartData.C_TxOK = 1;


   }
   else
   {
      S_HartData.I_TxCtr++;
      UCA0TXBUF = S_HartData.C_TxBuf[S_HartData.I_TxCtr];
   }
   if(S_HartData.C_TxOK == 1)
   {
      if(++S_HartData.C_ModbusTxCtr >= 6)
      {
            USCIA0_RX_EN;
            S_HartData.C_ModbusTxCtr = 0;
            S_HartData.C_TxOK = 0;
      }
   }

}

unsigned char C_Rx_FF_Ctr = 0;
unsigned char C_Rx_Total_Ctr = 0;

//--接收中断函数----
#pragma vector=USCIAB0RX_VECTOR
__interrupt void USCI0RX_ISR(void)
{


  unsigned char c_rx = 0;

  c_rx = UCA0RXBUF;

  if(c_rx == 0xFF)
  {
   if(++C_Rx_FF_Ctr >= 3)
   {
      S_HartData.I_RxCtr = 0;
      C_Rx_Total_Ctr = 0xFF;
      S_HartData.C_RxHead = 1;
   }
  }
  else
  {
   C_Rx_FF_Ctr = 0;
  }

  if(S_HartData.C_RxHead == 1)
  {
   if(c_rx == 0x02 || c_rx == 0x82)
   {
      S_HartData.C_RxHead = 2;
      S_HartData.I_RxCtr = 0;
      S_HartData.C_RxBuf[S_HartData.I_RxCtr++] = c_rx;
   }
   else
   {
      if(c_rx == 0xFF)
      {
            C_Rx_FF_Ctr++;
      }
      else
      {
            C_Rx_FF_Ctr = 0;
            S_HartData.C_RxHead = 0;
      }
   }
  }
  else if(S_HartData.C_RxHead == 0x02)
  {
   S_HartData.C_RxBuf[S_HartData.I_RxCtr++] = c_rx;
   if(S_HartData.C_RxBuf[0] == 0x02)
   {
      if(S_HartData.I_RxCtr >= 4)
      {
         if(C_Rx_Total_Ctr == 0xFF)
         {
            C_Rx_Total_Ctr = S_HartData.C_RxBuf[3]+5;
         }
      }
   }
   else
   {
      if(S_HartData.I_RxCtr >= 8)
      {
         if(C_Rx_Total_Ctr == 0xFF)
         {
            C_Rx_Total_Ctr = S_HartData.C_RxBuf[7]+9;
         }
      }
   }

   if(S_HartData.I_RxCtr >= C_Rx_Total_Ctr)
   {
      C_Rx_FF_Ctr = 0;
      S_HartData.C_RxHead = 0;
      S_HartData.I_RxTotalCtr = S_HartData.I_RxCtr;
      S_HartData.C_RxOK = 1;
   }
  }
}