7289.lst

这是一个ZLG7289的读键盘程序

C51 COMPILER V8.17   7289                                                                  03/19/2009 11:18:00 PAGE 1   


C51 COMPILER V8.17, COMPILATION OF MODULE 7289
OBJECT MODULE PLACED IN 7289.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 7289.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include "reg52.h"
   2          
   3          sbit KEY = P3^3;
   4          sbit CS = P3^1;
   5          sbit CLK = P3^0;
   6          sbit DIO= P3^2;
   7          
   8          void DisPlay(KeyValue, char all);
   9          
  10          void Delay(int  time)
  11          {
  12   1              do
  13   1              {
  14   2                      int j;
  15   2                      for(j=0; j<5; j++)
  16   2                              ;
  17   2              } while (--time);
  18   1      }
  19          
  20          /*发送指令或数据到7289*/
  21          void SendCmd(unsigned char cmd)
  22          {
  23   1              unsigned char BitCnt = 8;
  24   1              CS = 0;
  25   1              Delay(50);
  26   1      
  27   1              while(BitCnt--)
  28   1              {
  29   2                      DIO = cmd >> 7;
  30   2                      cmd<<=1;
  31   2                      CLK = 1;
  32   2                      Delay(10);
  33   2                      CLK = 0;
  34   2                      Delay(10);
  35   2              }
  36   1              DIO = 0;
  37   1      
  38   1      }
  39          
  40          /*接受Key值从7289*/
  41           unsigned char Receive()
  42          {
  43   1              unsigned char BitCnt = 8;
  44   1              unsigned char  rec = 0;
  45   1              DIO = 1;
  46   1              CS = 0;
  47   1              Delay(50);
  48   1              while(BitCnt--)
  49   1              {
  50   2                      CLK = 1;
  51   2                      Delay(10);
  52   2                      rec= (rec<<1)|DIO;
  53   2                      CLK=0;
  54   2                      Delay(10);
  55   2              }
C51 COMPILER V8.17   7289                                                                  03/19/2009 11:18:00 PAGE 2   

  56   1              DIO = 0;
  57   1              return rec;
  58   1      
  59   1      }
  60          
  61          /*等待Key按下，如果按下，接受Key值*/
  62          unsigned char  FindKey(NewKey)
  63          {
  64   1              unsigned char KeyValue;
  65   1              KEY = 1;
  66   1              Delay(50);
  67   1              while(KEY)
  68   1              {
  69   2                 ;
  70   2              }
  71   1              SendCmd(0x15);
  72   1              KeyValue = Receive();
  73   1              CS=1;
  74   1              return KeyValue ;
  75   1      }
  76          
  77          /*如果all=1, 8个数码 管一起显示KeyValue，否则根据位数显示*/
  78          void DisPlay(KeyValue, char all)
  79          {
  80   1               unsigned char  LedValue;
  81   1      
  82   1               unsigned char  ledsel = 0x87;
  83   1               int i;
  84   1               if(!all)
  85   1                      SendCmd(0xA4);
  86   1               for(i=0; i<8;i++)
  87   1               {
  88   2                       LedValue = KeyValue%10;
  89   2                       SendCmd(ledsel-i);
  90   2                       SendCmd(LedValue);
  91   2                       CS = 1;
  92   2                       KeyValue/=10;
  93   2                       if((!all) && (KeyValue ==0))
  94   2                               break;
  95   2               }
  96   1      
  97   1      }
  98          
  99          /*on=1 Led      闪，否则on=0，不闪*/
 100          void LedShine(int  on)
 101          {
 102   1               SendCmd(0x88);
 103   1               if(on)
 104   1                      SendCmd(0x0);
 105   1               else
 106   1                      SendCmd(0xff);
 107   1               CS = 1;
 108   1      }
 109          
 110          /*Led左移一位*/
 111          void  LedLsl()
 112          {
 113   1               SendCmd(0xA0);
 114   1               CS = 1;
 115   1      }
 116          
 117          
C51 COMPILER V8.17   7289                                                                  03/19/2009 11:18:00 PAGE 3   

 118          
 119          void main(void)
 120          {   unsigned char KeyValue,NewKey;
 121   1          int i;
 122   1          CS = 1;
 123   1              KEY = 1;
 124   1              DIO = 1;
 125   1              Delay(10);
 126   1              SendCmd(0xA4);
 127   1              Delay(10);
 128   1          DisPlay(0, 1);
 129   1              Delay(5000);
 130   1              DisPlay(8, 0);
 131   1      
 132   1              for(i=0; i<8; i++)
 133   1              {
 134   2               Delay(3000);
 135   2               LedLsl();
 136   2              }
 137   1              while(1)
 138   1             {
 139   2              KeyValue = FindKey(NewKey);
 140   2              DisPlay(KeyValue,0);
 141   2             }
 142   1              
 143   1      
 144   1      
 145   1      }
 146          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    368    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----      10
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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