miniModule C167 Tastendruck auslesen

#include <reg167.h>                                   

#include <stdio.h>  

sbit P2_9 = P2^9;                      

sbit DP2_9 = DP2^9;                    

sbit P2_10 = P2^10;            

sbit DP2_10 = DP2^10;         

void wait (void)  {                   

  ;                                   

}

void main (void)  {

  unsigned long i;                   

  DP2_9 = 1;                         

  DP2_10 = 0;               

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

  P3  |= 0x0400;                      

  DP3 |= 0x0400;                      

  DP3 &= 0xF7FF;                      

  S0TIC = 0x80;                        

  S0RIC = 0x00;                       

  S0BG  = 0x40;                       

  S0CON = 0x8011;                     

  putchar(' ');                       

  printf ("Hello World vom Controller %d \n: ", P2_10);        

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

  while (1) {                        

    P2_9 = 0;                        

    for (i=0; i<20000; i++) {         

      wait ();                         

    }

    P2_9 = 1;                          

    for (i=0; i<20000; i++) {         

      wait ();                         

    }

  // Key pressed

  switch  (P2 & 0x0A) {         

    case 0x1:   printf("Taster 0x1");

          break;

    case 0x0:   printf("Taster 0x0");

          break; 

      default:  printf("default!!!!"); 

    }

  }

}