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实现51单片机的日历功能 用T2定时器作为基本时钟中断

C51 COMPILER V7.06   SEG                                                                   10/26/2008 17:03:14 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE SEG
OBJECT MODULE PLACED IN seg.OBJ
COMPILER INVOKED BY: C:\Program Files\Keil C51\C51\BIN\C51.EXE seg.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include "seg.h"
   2          
   3          unsigned char code segcode[] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
   4          unsigned char code segselect[] = {0xFE,0xFD,0xFB,0xF7,0xFF};
   5          /****************************************
   6                  写段码数据
   7                   seg为显示数据
   8          **************************************/
   9          void WriteSegData(unsigned char seg)
  10          {
  11   1              if(seg>9) seg=0;                        //越界处理
  12   1              seg=segcode[seg];
  13   1              P0=seg;
  14   1                      _nop_();
  15   1                      _nop_();
  16   1              P2&=0x1f;                                               //P2.5-p2.7=000         CS0=0;
  17   1                      _nop_();
  18   1                      _nop_();
  19   1              P2|=0xe0;                                               //P2.5-P2.7=111         CS0=1;          数据锁存
  20   1      }
  21          
  22          
  23          /********************************************
  24                  写位选数据
  25          *************************************/
  26          void WriteCsData(unsigned char cs)
  27          {
  28   1              if(cs>4)cs=0;                   //越界处理
  29   1              cs=segselect[cs];
  30   1              P0=cs;
  31   1                      _nop_();
  32   1                      _nop_();
  33   1              P2&=0x3f;                               //P2.5-P2.7=100         CS1=0
  34   1                      _nop_();
  35   1                      _nop_();
  36   1              P2|=0xe0;                               //数据锁存
  37   1      }
  38          
  39          /*******************************************
  40                  写小数点
  41          *****************************************/
  42          void WritePoint(unsigned char i)
  43          {
  44   1              if(i > 4)       i = 0;
  45   1              P0 = 0x80;
  46   1                      _nop_();
  47   1                      _nop_();
  48   1              P2&=0x1f;
  49   1                      _nop_();
  50   1                      _nop_();
  51   1              P2|=0xe0;
  52   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
C51 COMPILER V7.06   SEG                                                                   10/26/2008 17:03:14 PAGE 2   

   CODE SIZE        =     70    ----
   CONSTANT SIZE    =     15    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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