ds.lst

基于51单片机的点阵显示设计源代码加仿真

C51 COMPILER V8.05a   DS                                                                   09/24/2008 22:18:42 PAGE 1   


C51 COMPILER V8.05a, COMPILATION OF MODULE DS
OBJECT MODULE PLACED IN ds.OBJ
COMPILER INVOKED BY: D:\Program Files\Keil\C51\BIN\C51.EXE ds.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <at89x51.h>
   2          #include "led.h"
   3          sbit rst=P2^5;
   4          sbit sclk=P2^7;
   5          sbit io=P2^6;
   6          unsigned int second[2]={0,0},min[2]={0,0},hour[2]={0,0};
   7          
   8          void write_ds1302(unsigned char dat)
   9          {
  10   1               unsigned char i=0;
  11   1               sclk=0;
  12   1               for (i=0;i<8;i++)
  13   1               {
  14   2                       if (dat&0x01) io=1;
  15   2                       else io=0;
  16   2                       sclk=1;
  17   2                       sclk=0;
  18   2                       dat=dat>>1;
  19   2               }
  20   1      }
  21          void write_data(unsigned char address,unsigned char dat)
  22          {
  23   1               rst=0;
  24   1               sclk=0;
  25   1               rst=1;
  26   1               write_ds1302(address);
  27   1               write_ds1302(dat);
  28   1               sclk=1;
  29   1               rst=0;
  30   1      }
  31          unsigned char read_ds1302(void)
  32          {
  33   1               unsigned char receive=0,i=0;
  34   1               sclk=0;
  35   1               for (i=0;i<8;i++)
  36   1               {
  37   2                       receive=receive>>1;
  38   2                       if (io==1) receive=receive|0x80;
  39   2                       sclk=1;
  40   2                       sclk=0;
  41   2               }
  42   1               return (receive);
  43   1      }
  44          unsigned char read_dat(unsigned char address)
  45          {
  46   1               unsigned char receive1=0,i=0;
  47   1               rst=0;
  48   1               sclk=0;
  49   1               rst=1;
  50   1               write_ds1302(address);
  51   1               io=1;
  52   1               receive1=read_ds1302();
  53   1               sclk=1;
  54   1               rst=0;
  55   1               return (receive1);
C51 COMPILER V8.05a   DS                                                                   09/24/2008 22:18:42 PAGE 2   

  56   1      }
  57          void ds1302(void)
  58          {
  59   1               rst=0;
  60   1               sclk=0;
  61   1               rst=1;
  62   1               write_ds1302(0x8e);
  63   1               write_ds1302(0);
  64   1               //sclk=1;
  65   1               rst=0;
  66   1               write_ds1302(0x90);
  67   1               write_ds1302(0xa5);
  68   1               rst=0;
  69   1               write_data(0x8e,0);
  70   1               write_data(0x80,0);
  71   1               write_data(0x82,9);
  72   1               write_data(0x84,33);
  73   1               write_data(0x86,0x22);
  74   1               write_data(0x88,0x07);
  75   1               write_data(0x8C,0x08);
  76   1               rst=0;
  77   1               sclk=0;
  78   1               rst=1;
  79   1               write_ds1302(0x8e);
  80   1           write_ds1302(0x80);
  81   1               //sclk=1;
  82   1               rst=0;
  83   1      }
  84          void dsplay_ds1302(void)
  85          {
  86   1                      second[0]=read_dat(0x81);
  87   1                      second[1]=second[0];
  88   1                      second[0]=second[0]&0x0f;
  89   1                      second[1]=second[1]&0x70;
  90   1                      second[1]=second[1]>>4;
  91   1      
  92   1                      min[0]=read_dat(0x83);
  93   1                      min[1]=min[0];
  94   1                      min[0]=min[0]&0x0f;
  95   1                      min[1]=min[1]&0x70;
  96   1                      min[1]=min[1]>>4;
  97   1                      hour[1]=hour[0];
  98   1                      hour[0]=hour[0]&0x0f;
  99   1                      hour[1]=hour[1]&0x3f;
 100   1                      hour[1]=hour[1]>>4;
 101   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    308    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     12       1
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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