ds1302.lst

本人开发的测量水的浊度的仪器

C51 COMPILER V7.06   DS1302                                                                04/09/2005 13:15:55 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE DS1302
OBJECT MODULE PLACED IN ds1302.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE ds1302.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #ifndef DS1302_C
   2          #define DS1302_C
   3          #include "ds1302.h"
   4          
   5          uchar readdata(uchar addr)
   6          {
   7   1              uchar c,i;
   8   1      
   9   1              EA = 0;
  10   1      
  11   1              DS1302_RST = 1;
  12   1      
  13   1      //      DS1302_CLK = 0;
  14   1              for(i=0;i<8;i++)
  15   1              {
  16   2                      DS1302_CLK = 0;
  17   2                      if(addr&0x01)
  18   2                              DS1302_IO = 1;
  19   2                      else
  20   2                              DS1302_IO = 0;
  21   2                      addr >>= 1;
  22   2                      DS1302_CLK = 1;
  23   2              }
  24   1              for(i=0;i<8;i++)
  25   1              {
  26   2                      c >>= 1;
  27   2                      DS1302_CLK = 0;
  28   2                      DS1302_IO = 1;
  29   2                      if(DS1302_IO == 1)
  30   2                              c |= 0x80;
  31   2                      DS1302_CLK = 1;
  32   2              }
  33   1      
  34   1              DS1302_RST = 0;
  35   1              DS1302_CLK = 0;
  36   1      
  37   1              EA = 1;
  38   1      
  39   1              return c;
  40   1      }
  41          
  42          void writedata(uchar addr,uchar dat)
  43          {
  44   1              uchar i;
  45   1      
  46   1              EA = 0;
  47   1      
  48   1              DS1302_RST = 1;
  49   1      
  50   1      //      DS1302_CLK = 0;
  51   1              for(i=0;i<8;i++)
  52   1              {
  53   2                      DS1302_CLK = 0;
  54   2                      if(addr&0x01)
  55   2                              DS1302_IO = 1;
C51 COMPILER V7.06   DS1302                                                                04/09/2005 13:15:55 PAGE 2   

  56   2                      else
  57   2                              DS1302_IO = 0;
  58   2                      addr >>= 1;
  59   2                      DS1302_CLK = 1;
  60   2              }
  61   1      
  62   1              for(i=0;i<8;i++)
  63   1              {
  64   2                      DS1302_CLK = 0;
  65   2                      if(dat&0x01)
  66   2                              DS1302_IO = 1;
  67   2                      else
  68   2                              DS1302_IO = 0;
  69   2                      dat >>= 1;
  70   2                      DS1302_CLK = 1;
  71   2              }
  72   1      
  73   1              DS1302_RST = 0;
  74   1              DS1302_CLK = 0;
  75   1      
  76   1              EA = 1;
  77   1      }
  78          
  79          void initds1302()
  80          {
  81   1              EA = 0;
  82   1              DS1302_RST = 0;
  83   1              DS1302_CLK = 0;
  84   1              DS1302_IO = 0;
  85   1              EA = 1;
  86   1      }
  87          
  88          #endif


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    129    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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