24c16.lst

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C51 COMPILER V7.04   24C16                                                                 10/23/2004 15:21:28 PAGE 1   


C51 COMPILER V7.04, COMPILATION OF MODULE 24C16
OBJECT MODULE PLACED IN 24c16.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 24c16.c ROM(COMPACT) BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1            //这是24c16以内的程序，如果大于16则在多加一个高位地址 #include <at89x52.h>
   2          #include <reg52.h>
   3          #include <intrins.h>
   4          #define uchar unsigned char
   5          
   6          sbit     ee_sda=P1^3;
   7          sbit     ee_scl=P1^2;
   8          
   9          bit ee_end_fg;
  10          
  11          void start(void)
  12          {
  13   1      ee_sda=1;
  14   1      ee_scl=1;
  15   1      _nop_();
  16   1      _nop_();
  17   1      _nop_();
  18   1      ee_sda=0;
  19   1      _nop_();
  20   1      _nop_();
  21   1      _nop_();
  22   1      }
  23          void stop(void)
  24          {
  25   1      ee_sda=0;
  26   1      _nop_();
  27   1      _nop_();
  28   1      ee_scl=1;
  29   1      _nop_();
  30   1      _nop_();
  31   1      ee_sda=1;
  32   1      }
  33          void ee_tx(uchar ee_data)
  34          {
  35   1      uchar i=8;
  36   1      do
  37   1      {
  38   2      ee_scl=0;
  39   2      ee_sda=ee_data&0x80;
  40   2      ee_data<<=1;
  41   2      ee_scl=1;
  42   2      i--;
  43   2      }
  44   1      while (i);
  45   1      do
  46   1      {
  47   2      ee_scl=0;
  48   2      _nop_();
  49   2      _nop_();
  50   2      _nop_();
  51   2      _nop_();
  52   2      ee_scl=1;
  53   2      }
  54   1      while (ee_sda);
  55   1      ee_scl=0;
C51 COMPILER V7.04   24C16                                                                 10/23/2004 15:21:28 PAGE 2   

  56   1      }
  57          uchar ee_rx(void)
  58          {
  59   1      uchar i=8,ee_data;
  60   1      do
  61   1      {
  62   2      ee_data<<=1;
  63   2      ee_scl=0;
  64   2      _nop_();
  65   2      _nop_();
  66   2      ee_scl=1;
  67   2      ee_data|=ee_sda;
  68   2      i--;
  69   2      }
  70   1      while (i);
  71   1      ee_scl=0;
  72   1      if (!ee_end_fg)
  73   1      {
  74   2      ee_sda=0;
  75   2      _nop_();
  76   2      _nop_();
  77   2      ee_scl=1;
  78   2      _nop_();
  79   2      _nop_();
  80   2      _nop_();
  81   2      _nop_();
  82   2      ee_scl=0;
  83   2      }
  84   1      ee_sda=1;
  85   1      return(ee_data);
  86   1      }
  87          void ee_read(uchar ee_addrh,uchar ee_addrl,uchar ee_num,uchar *sp)
  88          {
  89   1      ee_end_fg=0;
  90   1      start();
  91   1      ee_addrh&=7;
  92   1      ee_addrh<<=1;
  93   1      ee_addrh|=0xa0;
  94   1      ee_tx(ee_addrh);
  95   1      ee_tx(ee_addrl);
  96   1      start();
  97   1      ee_tx(ee_addrh|1);
  98   1      do
  99   1      {
 100   2      if (ee_num==1)
 101   2      ee_end_fg=1;
 102   2      *sp=ee_rx();
 103   2      sp++;
 104   2      ee_num--;
 105   2      }
 106   1      while (ee_num);
 107   1      stop();
 108   1      }
 109          void ee_write(uchar ee_addrh,uchar ee_addrl,uchar ee_num,uchar *sp)
 110          {
 111   1      start();
 112   1      ee_addrh&=7;
 113   1      ee_addrh<<=1;
 114   1      ee_addrh|=0xa0;
 115   1      ee_tx(ee_addrh);
 116   1      ee_tx(ee_addrl);
 117   1      do
C51 COMPILER V7.04   24C16                                                                 10/23/2004 15:21:28 PAGE 3   

 118   1      {
 119   2      ee_tx(*sp);
 120   2      sp++;
 121   2      ee_num--;
 122   2      }
 123   1      while (ee_num);
 124   1      stop();
 125   1      }
 126          //==========================================================


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    225    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----      12
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


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