矩阵式键盘2.lst

矩阵键盘程序及仿真

C51 COMPILER V8.05a   __阵式键盘2                                                          07/29/2011 23:43:51 PAGE 1   


C51 COMPILER V8.05a, COMPILATION OF MODULE __阵式键盘2
OBJECT MODULE PLACED IN 矩阵式键盘2.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 矩阵式键盘2.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          #define uint unsigned int
   3          #define uchar unsigned char
   4          sbit dula=P2^6;
   5          sbit wela=P2^7;
   6          sbit key1=P3^4;
   7          uchar code table[]={
   8          0x3f,0x06,0x5b,0x4f,
   9          0x66,0x6d,0x7d,0x07,
  10          0x7f,0x6f,0x77,0x7c,
  11          0x39,0x5e,0x79,0x71,0};
  12          uchar num,temp,num1;
  13          void delay(uint z)
  14          {
  15   1              uint x,y;
  16   1              for(x=z;x>0;x--)
  17   1                      for(y=110;y>0;y--);
  18   1      }
  19          uchar keyscan();
  20          void display(uchar aa);
  21          void main()
  22          {
  23   1              num=17;
  24   1              dula=1;
  25   1              P0=0;
  26   1              dula=0;
  27   1              wela=1;
  28   1              P0=0xc0;
  29   1              wela=0;
  30   1              
  31   1              while(1)
  32   1                      {
  33   2                              display(keyscan());
  34   2                      }
  35   1      }
  36          void display(uchar aa)
  37          {
  38   1                              dula=1;
  39   1                              P0=table[aa-1];
  40   1                              dula=0;         
  41   1      }
  42          uchar keyscan()
  43          {
  44   1                              P3=0xfe;
  45   1                              temp=P3;
  46   1                              temp=temp&0xf0;
  47   1                              while(temp!=0xf0)
  48   1                                      {
  49   2                                              delay(5);
  50   2                                              temp=P3;
  51   2                                              temp=temp&0xf0;
  52   2                                              while(temp!=0xf0)
  53   2                                              {
  54   3                                                      temp=P3;
  55   3                                              switch(temp)
C51 COMPILER V8.05a   __阵式键盘2                                                          07/29/2011 23:43:51 PAGE 2   

  56   3                                                      {
  57   4                                                              case 0xee:num=1;
  58   4                                                                      break;
  59   4                                                              case 0xde:num=2;
  60   4                                                                      break;
  61   4                                                              case 0xbe:num=3;
  62   4                                                                      break;
  63   4                                                              case 0x7e:num=4;
  64   4                                                                      break;
  65   4                                                      }
  66   3                                              while(temp!=0xf0)
  67   3                                                      {
  68   4                                                              temp=P3;
  69   4                                                              temp=temp&0xf0;
  70   4                                                      }
  71   3                                              }
  72   2                                      }
  73   1      
  74   1                              P3=0xfd;
  75   1                              temp=P3;
  76   1                              temp=temp&0xf0;
  77   1                              while(temp!=0xf0)
  78   1                                      {
  79   2                                              delay(5);
  80   2                                              temp=P3;
  81   2                                              temp=temp&0xf0;
  82   2                                              while(temp!=0xf0)
  83   2                                              {
  84   3                                                      temp=P3;
  85   3                                              switch(temp)
  86   3                                                      {
  87   4                                                              case 0xed:num=5;
  88   4                                                                      break;
  89   4                                                              case 0xdd:num=6;
  90   4                                                                      break;
  91   4                                                              case 0xbd:num=7;
  92   4                                                                      break;
  93   4                                                              case 0x7d:num=8;
  94   4                                                                      break;
  95   4                                                      }
  96   3                                              while(temp!=0xf0)
  97   3                                                      {
  98   4                                                              temp=P3;
  99   4                                                              temp=temp&0xf0;
 100   4                                                      }
 101   3                                              }
 102   2                                      }
 103   1      
 104   1      
 105   1                              P3=0xfb;
 106   1                              temp=P3;
 107   1                              temp=temp&0xf0;
 108   1                              while(temp!=0xf0)
 109   1                                      {
 110   2                                              delay(5);
 111   2                                              temp=P3;
 112   2                                              temp=temp&0xf0;
 113   2                                              while(temp!=0xf0)
 114   2                                              {
 115   3                                                      temp=P3;
 116   3                                              switch(temp)
 117   3                                                      {
C51 COMPILER V8.05a   __阵式键盘2                                                          07/29/2011 23:43:51 PAGE 3   

 118   4                                                              case 0xeb:num=9;
 119   4                                                                      break;
 120   4                                                              case 0xdb:num=10;
 121   4                                                                      break;
 122   4                                                              case 0xbb:num=11;
 123   4                                                                      break;
 124   4                                                              case 0x7b:num=12;
 125   4                                                                      break;
 126   4                                                      }
 127   3                                              while(temp!=0xf0)
 128   3                                                      {
 129   4                                                              temp=P3;
 130   4                                                              temp=temp&0xf0;
 131   4                                                      }
 132   3                                              }
 133   2                                      }
 134   1      
 135   1      
 136   1                              P3=0xf7;
 137   1                              temp=P3;
 138   1                              temp=temp&0xf0;
 139   1                              while(temp!=0xf0)
 140   1                                      {
 141   2                                              delay(5);
 142   2                                              temp=P3;
 143   2                                              temp=temp&0xf0;
 144   2                                              while(temp!=0xf0)
 145   2                                              {
 146   3                                                      temp=P3;
 147   3                                              switch(temp)
 148   3                                                      {
 149   4                                                              case 0xe7:num=13;
 150   4                                                                      break;
 151   4                                                              case 0xd7:num=14;
 152   4                                                                      break;
 153   4                                                              case 0xb7:num=15;
 154   4                                                                      break;
 155   4                                                              case 0x77:num=16;
 156   4                                                                      break;
 157   4                                                      }
 158   3                                              while(temp!=0xf0)
 159   3                                                      {
 160   4                                                              temp=P3;
 161   4                                                              temp=temp&0xf0;
 162   4                                                      }
 163   3                                              }
 164   2                                      }
 165   1      return num;
 166   1      
 167   1      }
 168          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    406    ----
   CONSTANT SIZE    =     17    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      3    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.

C51 COMPILER V8.05a   __阵式键盘2                                                          07/29/2011 23:43:51 PAGE 4   


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