key.lst

液晶1602的驱动程序。 用的是勤正达的FM1602A--3。 MCU用51

C51 COMPILER V6.12  KEY                                                                    11/26/2008 14:07:02 PAGE 1   


C51 COMPILER V6.12, COMPILATION OF MODULE KEY
OBJECT MODULE PLACED IN .\key.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE .\key.c DEBUG OBJECTEXTEND

stmt level    source

   1          #include <AT89X51.H>
   2          
   3          sbit key=P2^0;
   4          
   5          
   6          void delaym(unsigned int n)
   7          
   8          {unsigned int i,j;
   9   1      for(j=n;j>0;j--)
  10   1      for(i=112;i>0;i--);
  11   1      }                         /////// 精确MS，
  12          
  13          
  14          void keyboard ()            
  15          {unsigned int keytime=0;///////// 键时
  16   1      if(key==0){delaym(10);
  17   2      while(key==0){delaym(1);keytime++;};           /////////// 按键计时
  18   2      
  19   2      if(keytime<0x164){P3=0;}
  20   2      else{P1=0;};
  21   2      };
  22   1      
  23   1      }
  24          
  25          void main()
  26          {keyboard();}


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     79    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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