lesson4.lst

LCD1602程序（EE21学习板演示程序）

C51 COMPILER V6.12  LESSON4                                                                03/14/2009 17:28:36 PAGE 1   


C51 COMPILER V6.12, COMPILATION OF MODULE LESSON4
OBJECT MODULE PLACED IN .\lesson4.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE .\lesson4.c DEBUG OBJECTEXTEND

stmt level    source

   1          #include <reg52.h>
   2          #define uchar unsigned char 
   3          #define uint unsigned int
   4          uchar code table[]="www.eehome.cn";
   5          uchar code table1[]="yixiangongren";
   6          sbit P2_2=P2^2;
   7          sbit P2_3=P2^3;
   8          sbit rs=P3^5;
   9          sbit en=P3^4;
  10          void delay_ms(uint t)
  11          { 
  12   1        uint i;
  13   1        uchar j;
  14   1      
  15   1         for(i=t;i>0;i--)
  16   1          for(j=113;j>0;j--);
  17   1      }
  18          
  19          void wirte_com(uchar com)
  20          {
  21   1         rs=0;
  22   1         P0=com;
  23   1         en=1;
  24   1         delay_ms(5);
  25   1         en=0;
  26   1      
  27   1      }
  28          
  29          void wirte_data(uchar dat)
  30          {
  31   1         rs=1;
  32   1         P0=dat;
  33   1         en=1;
  34   1         delay_ms(5);
  35   1         en=0;
  36   1      
  37   1      }
  38          
  39          void init()
  40          
  41          { 
  42   1         P2_2=0;
  43   1         P2_3=0;
  44   1      
  45   1         wirte_com(0x38);
  46   1         	delay_ms(5);
  47   1         wirte_com(0x0c);
  48   1         	delay_ms(5);
  49   1         wirte_com(0x06);
  50   1      
  51   1         
  52   1        
  53   1      }
  54          void main()
  55          
C51 COMPILER V6.12  LESSON4                                                                03/14/2009 17:28:36 PAGE 2   

  56          {  
  57   1         uchar num;
  58   1         init();
  59   1         	delay_ms(5);
  60   1         wirte_com(0x80+0x01);
  61   1        for(num=0;num<13;num++)
  62   1         {
  63   2          wirte_data(table[num]);
  64   2      	delay_ms(30);
  65   2      	}
  66   1         
  67   1      		
  68   1      	wirte_com(0x80+0x40+0x01);
  69   1         for(num=0;num<13;num++)
  70   1         {
  71   2          wirte_data(table1[num]);
  72   2      	delay_ms(30);
  73   2      	}
  74   1           
  75   1         while(1);
  76   1      
  77   1       }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    132    ----
   CONSTANT SIZE    =     28    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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