key.lst

0-30v

C51 COMPILER V8.08   KEY                                                                   10/01/2008 23:53:32 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE KEY
OBJECT MODULE PLACED IN KEY.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE KEY.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include "reg52.h"
   2          #include"function.h"
   3          
   4          sbit clk_574_2 = P1^3;
   5          sbit lcd_rs    = P1^4;
   6          sbit RS = P1^4;
   7          sbit RW = P1^5;
   8          
   9          sbit key1 = P1^1;
  10          sbit key2 = P1^2;
  11          
  12          uchar key_data;
  13          
  14          #define DBUS P0
  15          /************************************************************************************
  16          *按键扫描 
  17          *返回键值    
  18          ************************************************************************************/
  19          uchar key_sm()
  20          {
  21   1              RS  =  1;                       
  22   1              RW  =  0;       //--------避免液晶屏干扰数据总线 
  23   1              key1 = 1;
  24   1              key2 = 1;       //--------按键置高电平  
  25   1              key_data = 0xff;
  26   1                 DBUS = 0xff;
  27   1                 clk_574_2 = 0;       
  28   1                 clk_574_2 = 1;
  29   1              if(key1 == 0){key_data = key_enter;}
  30   1                 DBUS = 0xfe;
  31   1                 clk_574_2 = 0;       
  32   1             clk_574_2 = 1;
  33   1              if(key1 == 0){key_data = key_9;}
  34   1              if(key2 == 0){key_data = key_dian;}
  35   1                 DBUS = 0xfd;
  36   1                 clk_574_2 = 0;       
  37   1                 clk_574_2 = 1;
  38   1              if(key1 == 0){key_data = key_6;}
  39   1              if(key2 == 0){key_data = key_3;}
  40   1                 DBUS = 0xfb;
  41   1                 clk_574_2 = 0;       
  42   1                 clk_574_2 = 1;
  43   1              if(key1 == 0){key_data = key_5;}
  44   1              if(key2 == 0){key_data = key_2;}
  45   1                 DBUS = 0xf7;
  46   1                 clk_574_2 = 0;       
  47   1                 clk_574_2 = 1;
  48   1              if(key1 == 0){key_data = key_8;}
  49   1              if(key2 == 0){key_data = key_0;}
  50   1                 DBUS = 0xef;
  51   1                 clk_574_2 = 0;       
  52   1                 clk_574_2 = 1;
  53   1              if(key1 == 0){key_data = key_4;}
  54   1              if(key2 == 0){key_data = key_1;}
  55   1                      DBUS = 0xdf;
C51 COMPILER V8.08   KEY                                                                   10/01/2008 23:53:32 PAGE 2   

  56   1                      clk_574_2 = 0;  
  57   1                      clk_574_2 = 1;  
  58   1              if(key1 == 0){key_data = key_7;}
  59   1              if(key2 == 0){key_data = key_esc;}
  60   1                      DBUS = 0xbf;
  61   1                      clk_574_2 = 0;  
  62   1                      clk_574_2 = 1;  
  63   1              if(key1 == 0){key_data = key_you;}
  64   1              if(key2 == 0){key_data = key_xia;}
  65   1                      DBUS = 0x7f;
  66   1                      clk_574_2 = 0;  
  67   1                      clk_574_2 = 1;          
  68   1              if(key1 == 0){key_data = key_zuo;}
  69   1              if(key2 == 0){key_data = key_shang;}
  70   1      
  71   1              return  key_data;       
  72   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    179    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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