main.lst

1602 的驱动程序 很完整。通过KEIL C 编译在ROTUES 上用AT89C51仿真通过。

C51 COMPILER V7.07   MAIN                                                                  04/03/2006 22:25:21 PAGE 1   


C51 COMPILER V7.07, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: D:\Program Files\Keil\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include "reg52.h"
   2          #include "intrins.h"
   3          
   4          #define uchar unsigned char
   5          #define uint unsigned int
   6          
   7          sbit RS=P1^2;
   8          sbit RW=P1^1;
   9          sbit EN=P1^3;
  10          static void delay(uint j);
  11          //************************
  12          void initlcd();     /*LCD初始化*/
  13          void writecom(uchar c);
  14          void writedata(uchar c);
  15          void showchar(uchar pos,uchar c); /*显示一个字符 pos为位置 范围0-31 c为字符*/
  16          void showstring(uchar line,uchar *ptr);/*显示一行字符 line为行号 范围0，1 *ptr为首地址*/
  17          void disp_1602(uchar line,uchar *add);/*显示一行数字line为行号 范围0，1  *add为首地址*/
  18          
  19          //************************
  20          void writecom(uchar c)
  21          { delay(100);
  22   1        EN=0;
  23   1        RS=0;
  24   1        RW=0;
  25   1        _nop_();
  26   1        P0=c;
  27   1        EN=1;
  28   1        _nop_();
  29   1        EN=0;
  30   1      }
  31          //*************************
  32          void writedata(uchar c)
  33          { delay(100);
  34   1        EN=0;
  35   1        RS=1;
  36   1        RW=0;
  37   1        _nop_();
  38   1        P0=c;
  39   1        EN=1;
  40   1        _nop_();
  41   1        EN=0;
  42   1        RS=1;
  43   1      }
  44          //*****************
  45          void showchar(uchar pos,uchar c)
  46          { uchar p;
  47   1        if(pos>=0x10)
  48   1           p=pos+0xb0;
  49   1        else
  50   1           p=pos+0x80;
  51   1        writecom(p);
  52   1      
  53   1        writedata(c);
  54   1       }
  55          //****************************
C51 COMPILER V7.07   MAIN                                                                  04/03/2006 22:25:21 PAGE 2   

  56          void showstring(uchar line,char *ptr)
  57          { uchar l,i;
  58   1        l=line<<4;
  59   1        for(i=0;i<16;i++)
  60   1            {showchar(l++,*(ptr+i));}
  61   1      }
  62          //***************************
  63          void initlcd()
  64          { 
  65   1        writecom(0x38);
  66   1        writecom(0x38);
  67   1        writecom(0x06);
  68   1        writecom(0x0c);
  69   1        writecom(0x01);
  70   1      }
  71          //*********************
  72          void delay(uint j)
  73          { 
  74   1        while(j--);
  75   1      }
  76          //***************************************
  77          void disp_1602(uchar line,uchar *add)
  78          {
  79   1              uchar k;
  80   1              for(k=0;k<16;k++)
  81   1                      showchar(16*line+k,*(add+k)+0x30);
  82   1      }
  83          //**************************
  84          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    215    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----      14
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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