text1.lst

由C 语言实现的液晶 利用的是KEIL环境已经得到验证

C51 COMPILER V8.02   TEXT1                                                                 07/20/2007 09:24:08 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE TEXT1
OBJECT MODULE PLACED IN Text1.OBJ
COMPILER INVOKED BY: D:\Keil\C51\BIN\C51.EXE Text1.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          #include<intrins.h>
   3          #define uchar unsigned char
   4          
   5          sbit rs = P2^0;
   6          sbit rw = P2^1;
   7          sbit en = P2^2;
   8          sbit psb = P2^3;
   9          sbit ret = P2^5;
  10          uchar command,data1,data2,com0;
  11          uchar lcd_bufl,lcd_bufg;//定义显示缓冲区
  12          void lcd_int();
  13          void clear_lcd();
  14          void lcd_set();
  15          void display();
  16          void dis_init();          
  17          void delay(uchar ms);
  18          void write_command(uchar command);
  19          void write_data(uchar data0);
  20          
  21          //液晶初始化
  22          
  23          void lcd_int(void)
  24          {
  25   1       ret=0;
  26   1       delay(10);
  27   1       ret=1;
  28   1       _nop_();
  29   1       psb=1;//将PSB置1，通信方式为8BIT数据并口
  30   1       _nop_();
  31   1      }
  32          //LCD功能设置
  33          void lcd_set(void)
  34          {
  35   1       command=0x34;//功能设置--8BIT控制界面，扩充指令集---这个可去掉
  36   1       write_command(command);
  37   1       command=0x30;//功能设置--8BIT控制界面，基本指令集
  38   1       write_command(command);
  39   1       command=0x01;//清屏幕显示，将DDRAM的地址计数器归零
  40   1       write_command(command);
  41   1       command=0x06;//DDRAM的地址计数器（AC）加1
  42   1       write_command(command);
  43   1       command=0x0c;//显示打开，光标关，反白显示关
  44   1       write_command(command);
  45   1      }
  46          //清屏程序
  47          void clear_lcd(void)
  48          {
  49   1      command=0x01;
  50   1      write_command(command);
  51   1      command=0x34;
  52   1      write_command(command);
  53   1      command=0x30;
  54   1      write_command(command);
  55   1      }
C51 COMPILER V8.02   TEXT1                                                                 07/20/2007 09:24:08 PAGE 2   

  56          
  57          //写指令程序
  58          void write_command(uchar command)
  59          {
  60   1       delay(100);
  61   1       rs=0;
  62   1       rw=0;
  63   1       P0=command;
  64   1       en=1;
  65   1       _nop_();
  66   1       _nop_();
  67   1       en=0;
  68   1      }
  69          //写数据程序
  70          void write_data(uchar data0)
  71          {
  72   1       delay(100);
  73   1       rs=1;
  74   1       rw=0;
  75   1       P0=data0;
  76   1       en=1;
  77   1       _nop_();
  78   1       _nop_();
  79   1       en=0;
  80   1      }
  81          //延时子程序
  82          void delay(uchar ms)
  83          {
  84   1       uchar i;
  85   1       while(ms--)
  86   1       {
  87   2        for(i=0;i<120;i++);
  88   2       }
  89   1      }
  90          
  91          //液晶显示程序
  92          void display(void)
  93          {
  94   1       command=com0;
  95   1       write_command(command);
  96   1       data2=lcd_bufl;
  97   1       data1=lcd_bufg;
  98   1       write_data(data1);
  99   1       data1=data2;
 100   1       write_data(data1);
 101   1       }
 102             
 103             //显示字符
 104             void dis_init(void)
 105             {
 106   1         com0=0x82;
 107   1         lcd_bufl=0xcf;
 108   1         lcd_bufg=0xc4;
 109   1         display();
 110   1         }
 111          
 112             //主程序
 113             main()
 114          {
 115   1               lcd_int();
 116   1               lcd_set();
 117   1               while(1)
C51 COMPILER V8.02   TEXT1                                                                 07/20/2007 09:24:08 PAGE 3   

 118   1      {
 119   2         dis_init();
 120   2         }
 121   1         }
 122          
 123          
 124          
 125          
 126          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    188    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      6       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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