text1.lst

采用AT89S52单片机与1602液晶的显示器程序的KEIL工程。

C51 COMPILER V8.01   TEXT1                                                                 05/16/2009 20:05:09 PAGE 1   


C51 COMPILER V8.01, COMPILATION OF MODULE TEXT1
OBJECT MODULE PLACED IN Text1.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE Text1.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          #define uchar unsigned char
   3          sbit rs=P3^5;
   4          sbit rw=P3^6;
   5          sbit e=P3^7;
   6          delay(uchar time)
   7          {while(time>0)
   8   1       {time--;}
   9   1      }
  10          void enrw()
  11          {rs=0;
  12   1       rw=0;
  13   1       e=0;
  14   1       delay(250);
  15   1       e=1;
  16   1      }
  17          
  18          write_data(uchar c)
  19          {P1=c;
  20   1       rs=1;
  21   1       rw=0;
  22   1       e=0;
  23   1       delay(250);
  24   1       e=1;
  25   1      }
  26          
  27          init_lcd(void)//初始化
  28          {
  29   1      P1=0x01;//清屏幕
  30   1      enrw();
  31   1      P1=0x38;//数据长度为8位,双行显示,5*7字符。
  32   1      enrw();
  33   1      P1=0x0c;//打开显示开关
  34   1      enrw();
  35   1      P1=0x06;//地址计数递增，显示屏不移动
  36   1      enrw();
  37   1      }
  38          
  39          write_cmd(uchar m)//写命令，注意与写数据的区别
  40          { P1=m;
  41   1        enrw();
  42   1      }
  43          
  44          position(uchar row,uchar colum)//写位置
  45          {uchar p;
  46   1        if(row==1)
  47   1          p=0x82+colum-1;
  48   1        else
  49   1          p=0xC0+colum-1;
  50   1          write_cmd(p);
  51   1      }
  52          display(uchar *s)//写字符串，简单的指针应用
  53          {
  54   1      for(;*s!='\0';s++)
  55   1        write_data(*s);
C51 COMPILER V8.01   TEXT1                                                                 05/16/2009 20:05:09 PAGE 2   

  56   1      }
  57          void main()
  58          {unsigned int m,n;
  59   1       m=1;
  60   1       n=2;
  61   1       init_lcd();
  62   1       position(m,1);
  63   1       display(" welcome");
  64   1       position(n,1);
  65   1       display("congratulations");
  66   1       while(1){;}
  67   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    140    ----
   CONSTANT SIZE    =     25    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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