lcd1602.lst

52单片机开发板的实例程序

C51 COMPILER V7.20   LCD1602                                                               09/17/2011 12:24:03 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE LCD1602
OBJECT MODULE PLACED IN lcd1602.OBJ
COMPILER INVOKED BY: C:\keil\C51\BIN\C51.EXE lcd1602.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          #define uchar unsigned char
   3          #define uint unsigned int
   4          sbit rs=P1^0;
   5          sbit rw=P1^1;
   6          sbit en=P1^2;
   7          uchar code a[]="I Like AT89S52";
   8          void delay(uint z)
   9          {
  10   1              uint x,y;
  11   1              for(x=z;x>0;x--)
  12   1              for(y=110;y>0;y--);
  13   1      }
  14          void write1602_command(uchar command)//写指令子函数
  15          {
  16   1         rs=0;
  17   1         rw=0;
  18   1         P2=command;
  19   1         delay(1);
  20   1         en=1;
  21   1         delay(2);
  22   1         en=0;
  23   1      }
  24          void write1602_data(uchar date)//写数据子函数
  25          {
  26   1         rs=1;
  27   1         rw=0;
  28   1         P2=date;
  29   1         delay(1);
  30   1         en=1;
  31   1         delay(2);
  32   1         en=0;
  33   1      }
  34          void init()
  35          {       
  36   1              en=0;
  37   1              rw=0;
  38   1              write1602_command(0x38);
  39   1              write1602_command(0x01);
  40   1              write1602_command(0x0c);
  41   1              write1602_command(0x06);
  42   1              write1602_command(0x80);
  43   1      }       
  44          void main()
  45          {               uchar i,temp=0,ge,shi,bai;
  46   1                      init();
  47   1                      write1602_command(0x80);
  48   1                   for(i=0;i<14;i++)
  49   1                              {
  50   2                                      write1602_data(a[i]);
  51   2                                      delay(6);
  52   2                              }
  53   1      
  54   1                  while(1)
  55   1                      {
C51 COMPILER V7.20   LCD1602                                                               09/17/2011 12:24:03 PAGE 2   

  56   2                        bai=temp/100;
  57   2                        shi=temp%100/10;
  58   2                        ge=temp%10;
  59   2                        write1602_command(0x80+0x40+6);
  60   2                        write1602_data(0x30+bai);
  61   2                        write1602_data(0x30+shi);
  62   2                        write1602_data(0x30+ge); 
  63   2                        temp++;
  64   2                        if(temp>200)
  65   2                        temp=0;
  66   2                        delay(800);   
  67   2                      }
  68   1              
  69   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    192    ----
   CONSTANT SIZE    =     15    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       1
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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