zwei Byte übertragen AT89C51CC03 (8051)

//*******************************************************************

// Header und C-Unterprogramme einbinden

//*******************************************************************

#include <AT89C51CC03.h>

#include <stdio.h>

#include "Warten_MS.C"

#include "USART.C"

#include "Info.C"

#include "ADW_Config.C"

//*******************************************************************

// Definitionen

//*******************************************************************

#define True 1

#define False 0

//*******************************************************************

// Hauptprogramm

//*******************************************************************

void main (void)

{

    unsigned char unc_RS232;

    unsigned short int uint_ADW;  

    unsigned short int uint_P0;  

    unsigned short int uint_P2;

    P0 = 0x00;

    P2 = 0x00;

    Init_USART(usi_Baud);

    Init_ADW();

    while(1)                    // Endlosschleife

    {

      unc_RS232 = Get_Char();

      switch (unc_RS232){

          case 0xF8:

                SBUF = 0x00;  

                P0 = Get_Char();

                uint_P0 = P0;

                printf("%.4u", uint_P0);

            break;

            case 0xF9:  

                  uint_P0 = P0;

                  printf("%.4u", uint_P0);

                  break;

            default:   printf("NO COMMAND");

            break;       

      }

      printf("\r\n");

      Warten_MS(1); 

    }

}