使用pic16f628a从sim800a读取响应不成功

我已经与我的PIC16F628 A接口与SIM800 A模块……所有的RX TX的控制器和GSM工作与PC终端。当我将我的PIC与GSM接口时，我可以用控制器做呼叫消息。但是我不能读取GSM模块的响应……我没有得到什么问题，因为控制器TX＆AMP；GSM RX工作得很好，但是控制器不能读取GSM的响应。我得到了PROL。EM在GSM TX与PIC RX。任何帮助都将不胜感激…谢谢



      以下为原文

    I have interfaced my pic16f628a with sim800A module...All rx tx of controller & gsm working with PC terminal.  When i interface my PIC with GSM, I can able to make calls messages with controller..But i cant read the response from GSM module...I am not getting what could be the problem as controller tx & GSM rx are working excellent but controller is not able to read response from GSM..I am getting problem in GSM tx with PIC RX.  Any help would be greatly appreciated...Thanks while(1)
{
  
        call_receive();

  
}
}
unsigned char call_receive(void)
{
unsigned char i,j,temp;
// START:
// while(UART_Receive() != 'R');
//
// temp = UART_Receive();
// if(temp != 'I')
// goto START;
//
// temp = UART_Receive();
// if(temp != 'N')
// goto START;
//
// temp = UART_Receive();
// if(temp != 'G')
// goto START;
//
//
// for(i=0;i<12;i++) //This length may vary as per name changes
// temp = UART_Receive();
   
  for(j=0;j<10;j++)
  {
   while(RCIF==0);
   RCIF = 0;
   cal_receive[j] = RCREG;
  }
   LED1=1;
   __delay_ms(5000);
   LED1=0;
   //return cal_receive[j];
   calling();
   __delay_ss(10);
   __delay_ss(10);
   //delay_ms ( 25000 );
   hangup();
   __delay_ss(10);
   message3();
   __delay_ss(5);
   
}