timer00.lst

这是用51开发的电子时钟

C51 COMPILER V8.05a   TIMER00                                                              02/07/2009 15:25:24 PAGE 1   


C51 COMPILER V8.05a, COMPILATION OF MODULE TIMER00
OBJECT MODULE PLACED IN timer00.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE timer00.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          /*说明：此程序只能让液晶从00:00:00开始计时，只能网液晶中读入数据*/
   2          #include<reg52.h>
   3          #define uint unsigned int
   4          #define uchar unsigned char
   5          sbit rs=P3^5;
   6          sbit lcden=P3^4;
   7          sbit s1=P2^0;
   8          sbit s2=P2^1;
   9          sbit s3=P2^2;
  10          uchar code table[]={"2009-2-7 STA"};
  11          uchar code table1[]={"    00:00:00"};
  12          char shi,fen,miao;
  13          uint count;
  14          void delay(uint z)
  15          {  uint x,y;
  16   1         for(x=z;x--;x>0)
  17   1            for(y=110;y--;y>0);
  18   1      }
  19          void write_com(uchar com)  //写指令rs=L,RW=L,lcden=高脉冲
  20          {
  21   1         rs=0;
  22   1         lcden=0;
  23   1         P0=com;
  24   1         delay(1);  //控制写入指令的速率
  25   1         lcden=1;
  26   1         delay(1);
  27   1         lcden=0;
  28   1           
  29   1      }
  30          void write_date(uchar date)//写数据rs=H
  31          {
  32   1         rs=1;
  33   1         lcden=0;
  34   1         P0=date;
  35   1         //控制写入数据的速率
  36   1         lcden=1;
  37   1         delay(1);
  38   1         lcden=0;
  39   1      }
  40          /*初始化液晶，定时器*/
  41          void init()
  42          {
  43   1        write_com(0x38);
  44   1        write_com(0x0c);//开显示，无光标
  45   1        write_com(0x06);
  46   1        write_com(0x01);//清屏
  47   1        TMOD=0x01;
  48   1        EA=1;
  49   1        ET0=1;
  50   1        TR0=1;
  51   1        TH0=65536-50000/256;
  52   1        TL0=65536-50000%256;   
  53   1      }
  54          void write_sfm(uchar add,uchar date)
  55          {  uchar ten,ge;
C51 COMPILER V8.05a   TIMER00                                                              02/07/2009 15:25:24 PAGE 2   

  56   1         ten=date/10;
  57   1         ge=date%10;
  58   1         write_com(0x80+0x40+add);
  59   1         write_date(0x30+ten);
  60   1         write_date(0x30+ge);
  61   1      }
  62          /*主函数*/
  63          void main()
  64          {
  65   1        uint i;
  66   1        init();
  67   1        
  68   1        for (i=0;i<=12;i++)
  69   1        write_date(table[i]);
  70   1        write_com(0x80+0x40);
  71   1        for(i=0;i<12;i++)
  72   1        write_date(table1[i]);
  73   1        while(1);
  74   1      }
  75          void timer0() interrupt 1
  76          {
  77   1         TH0=65536-50000/256;
  78   1         TL0=65536-50000%256; //50ms
  79   1         count++;
  80   1         if(count==20)
  81   1         {
  82   2             count=0;
  83   2                 miao++;
  84   2                 if(miao==60)  
  85   2                 {
  86   3                   miao=0;
  87   3                       fen++;
  88   3                       if(fen==60)
  89   3                       {
  90   4                         fen=0;
  91   4                         shi++;
  92   4                         if(shi==24)
  93   4                         {
  94   5                            shi=0;
  95   5                         }
  96   4                         write_sfm(4,shi);
  97   4                       }
  98   3                       write_sfm(7,fen);
  99   3                 }
 100   2                 write_sfm(10,miao);
 101   2      
 102   2                 
 103   2         } 
 104   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    323    ----
   CONSTANT SIZE    =     26    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      5       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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