at24cxx.lst

51单片机驱动2相步进电机程序。 keil 开发软件。

C51 COMPILER V8.15   AT24CXX                                                               11/08/2008 21:01:35 PAGE 1   


C51 COMPILER V8.15, COMPILATION OF MODULE AT24CXX
OBJECT MODULE PLACED IN .\OBJ\AT24CXX.obj
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE SRC\AT24CXX.C BROWSE DEBUG OBJECTEXTEND PRINT(.\LST\AT24CXX.lst) OBJECT(.\O
                    -BJ\AT24CXX.obj)

line level    source

   1          #include  "config.h"
   2          
   3          /****************************************************/
   4          /****************************************************/ 
   5          #define         SCL P4_0                                        //24C02时序       6
   6          #define         SDA P4_1                                        //24C02数据线 5 
   7          
   8          /****************************************************/
   9          void delay(unsigned int d)
  10          {
  11   1              unsigned int i,j;
  12   1              for(i=0;i<d;i++)
  13   1         for(j=0;j<1000;j++); 
  14   1      }
  15          /****************************************************/
  16          void DL(void)
  17          {
  18   1         unsigned char i;
  19   1         for(i=0;i<3;i++);
  20   1      }
  21          /****************************************************/           
  22          void STARTI2C(void)
  23          {
  24   1              SDA=1;   
  25   1              SCL=1;
  26   1              DL();
  27   1              SDA=0;    
  28   1              DL();
  29   1              SCL=0;
  30   1      }
  31          /****************************************************/             
  32          void stop(void)
  33          {
  34   1              SDA=0;   
  35   1              SCL=1;
  36   1              DL();
  37   1              SDA=1;    
  38   1              DL();
  39   1              SCL=0;
  40   1      } 
  41          /****************************************************/           
  42          void ack(void)
  43          {
  44   1              SDA=0;   
  45   1              SCL=1;
  46   1              DL();
  47   1              SDA=1;    
  48   1              SCL=0;
  49   1      }
  50          /****************************************************/            
  51          void output(unsigned char DD)
  52          {
  53   1              unsigned char i;
  54   1              for(i=0;i<8;i++)
C51 COMPILER V8.15   AT24CXX                                                               11/08/2008 21:01:35 PAGE 2   

  55   1              {
  56   2              SCL=0;
  57   2              SCL=0;
  58   2              DD=DD<<1;
  59   2              SDA=CY;
  60   2              DL();
  61   2              SCL=1;
  62   2              SCL=1;
  63   2              DL();
  64   2              DL();
  65   2              }
  66   1        DL();
  67   1        SCL=0;  
  68   1      }
  69          /****************************************************/
  70          unsigned char input(void)
  71          {
  72   1              unsigned char i;
  73   1              unsigned char DD;         
  74   1              for(i=0;i<8;i++)
  75   1                      {
  76   2                      DD=DD<<1;
  77   2                      SCL=0;
  78   2                      SCL=0;
  79   2                      DL();
  80   2                      SCL=1;
  81   2                      SCL=1;
  82   2                      DL();            
  83   2                      DD=DD|SDA;
  84   2                      }
  85   1              SCL=0;
  86   1              return(DD);
  87   1      }
  88          /****************************************************/ 
  89          void write(unsigned char aDD,unsigned char DData)
  90          {
  91   1              unsigned char head;  
  92   1              head=0xa0; 
  93   1              DL();
  94   1              STARTI2C();
  95   1              output(head);
  96   1              ack();
  97   1              output(aDD);
  98   1              ack();
  99   1              output(DData);
 100   1              SDA=0;
 101   1              ack();
 102   1              DL();
 103   1              stop();
 104   1              delay(1);
 105   1      }
 106          /****************************************************/                   
 107          unsigned char read(unsigned char aDD)                     
 108          {
 109   1              unsigned char rhead;
 110   1              unsigned char whead;
 111   1              unsigned char DD;       
 112   1              whead=0xa0;
 113   1              rhead=0xa1; 
 114   1              DL();
 115   1              STARTI2C();
 116   1              output(whead);
C51 COMPILER V8.15   AT24CXX                                                               11/08/2008 21:01:35 PAGE 3   

 117   1              ack();
 118   1              output(aDD);
 119   1              ack();
 120   1      
 121   1              STARTI2C();
 122   1              output(rhead);
 123   1              ack();
 124   1              DD=input();
 125   1              ack();
 126   1              DL();
 127   1              stop();
 128   1              return(DD);
 129   1      } 
 130          /****************************************************/
 131          
 132          
 133          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    236    ----
   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)