C51 COMPILER V8.02   PERIPHERAL                                                            12/05/2007 10:38:51 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE PERIPHERAL
OBJECT MODULE PLACED IN peripheral.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE peripheral.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <c8051f020.h>
   2          #define DELAY 100
   3          sbit BELL=P3^7;
   4          typedef unsigned char uchar; 
   5          typedef unsigned int uint; 
   6          
   7          uchar GetKey()
   8          {
   9   1              uchar KeyValue,KeyTemp;
  10   1              uint t;
  11   1              KeyValue=P0 & 0xf0;
  12   1              if(KeyValue==0xf0)
  13   1                      return 0;
  14   1          t=DELAY;
  15   1              while(t--);
  16   1              if( (P0 & 0xf0) !=KeyValue)
  17   1                      return 0;
  18   1              while(1)
  19   1              {
  20   2                      KeyTemp=P0 & 0xf0;
  21   2                      t=DELAY;
  22   2                      while(t--);
  23   2                      if((P0 & 0xf0)==KeyTemp && 0xf0==KeyTemp)
  24   2                              break;
  25   2              }
  26   1              switch(KeyValue)
  27   1              {
  28   2                      case 0xe0:return 4;
  29   2                      case 0xd0:return 3;
  30   2                      case 0xb0:return 1;
  31   2                      case 0x70:return 2;
  32   2                      default:return 0;                               
  33   2              }
  34   1      }
  35          void Beep(uint delay)
  36          {
  37   1              unsigned int i;
  38   1              BELL=1;
  39   1              for(i=0;i<delay;i++);
  40   1              BELL=0;
  41   1      }
  42          void SendUART(unsigned char c)
  43          {
  44   1                SBUF0=c;
  45   1                while(!TI0);
  46   1                      TI0=0;
  47   1      }
  48          
  49          void SendStrUART(char *c,int length)
  50          {
  51   1              int i=0;
  52   1              while(i<length)
  53   1              {
  54   2                      SBUF0=*c;
  55   2                      c++;i++;
C51 COMPILER V8.02   PERIPHERAL                                                            12/05/2007 10:38:51 PAGE 2   

  56   2                      while(!TI0){};
  57   2                      TI0=0;
  58   2              }
  59   1      }
  60          void EnableADC()
  61          {
  62   1              AD0EN=1;
  63   1      }
  64          void DisableADC()
  65          {
  66   1              AD0EN=0;
  67   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    179    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)