wxjcxh.c

用串口实现单片机和带键盘的显示屏之间的通信

do
{
    if(iniflag)
    {
        j=0;
        iniflag=0;
        ES=0;
        if(temp[0]==0XF0&&temp[1]==0x5A&&temp[2]==0X38&&temp[4]==0XA5&&temp[5]==0xF0)
       {
         useful=temp[3];
                switch (useful)
                {
                        case 0x22: P2=0xFF; break;
                        case 0x33: P2=0x01; break;
                        case 0x32: P2=0x02; break;
                        case 0x31: P2=0x03; break;
                        case 0x43: P2=0x04; break;
                        case 0x42: P2=0x05; break;
                        case 0x41: P2=0x06; break;
                        case 0x53: P2=0x07; break;
                        case 0x52: P2=0x08; break;
                        case 0x51: P2=0x09; break;
                        default:  P2=0x00;  break;
                 }
       }
      ES=1;
      for(i=0;i<6;i++)
         {SBUF=temp[i];
          delay(50);
         }   
     }
 }while (1);

}