mifare_crc.lst

mifarea卡程序mifarea卡程序mifarea卡程序

C51 COMPILER V8.00   MIFARE_CRC                                                            04/23/2009 15:56:20 PAGE 1   


C51 COMPILER V8.00, COMPILATION OF MODULE MIFARE_CRC
OBJECT MODULE PLACED IN .\out_sst89e564\Mifare_CRC.obj
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE source\Mifare_CRC.c LARGE BROWSE ORDER NOAREGS DEBUG OBJECTEXTEND PRINT(.\M
                    -ifare_CRC.lst) OBJECT(.\out_sst89e564\Mifare_CRC.obj)

line level    source

   1          /*
   2          
   3          File nmae: Mifare_CRC.c
   4          Function :UpdateCrc() and ComputerCrc().This function is 
   5                            original source code in ISO/IEC14443-3 Annex B
   6          Comment  :This file include all of the commputering ISO/IEC
   7                            14443-3 Annex B type card's CRC function.
   8          Note!!    This files should implemented by the Mifare Pro 
   9                    function and computer the CRC for receive data from 
  10                            ISO/IEC 14443-4 type A  IC card.                 
  11          
  12          */
  13          #include <stdio.h>
  14          #include <stdlib.h>
  15          #include <string.h>
  16          #include <ctype.h>
  17          #include "Mifarepro.h"
  18          
  19          //unsigned char First, Second;
  20          
  21          unsigned short UpdateCrc(unsigned char ch, unsigned short *lpwCrc)
  22          {
  23   1          ch = (ch^(unsigned char)((*lpwCrc) & 0x00FF));
  24   1          ch = (ch^(ch<<4));
  25   1          *lpwCrc = (*lpwCrc >> 8)^((unsigned short)ch << 8)^((unsigned short)ch<<3)^((unsigned short)ch>>4);
  26   1          return(*lpwCrc);
  27   1      }
  28          void ComputeCrc(char *Data, int Length,unsigned char *TransmitFirst, unsigned char *TransmitSecond)
  29          {
  30   1          unsigned char chBlock;
  31   1          unsigned short wCrc;
  32   1         
  33   1          wCrc = 0x6363;   /* ITU-V.41 */
  34   1          do 
  35   1          {
  36   2              chBlock = *Data++;
  37   2              UpdateCrc(chBlock, &wCrc);
  38   2          } while (--Length);
  39   1              
  40   1          *TransmitFirst = (unsigned char) (wCrc & 0xFF);
  41   1          *TransmitSecond = (unsigned char) ((wCrc >> 8) & 0xFF);
  42   1      }
  43          
  44          //ComputeCrc(BuffCRC_A, length, &First, &Second);


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    195    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----      15
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
C51 COMPILER V8.00   MIFARE_CRC                                                            04/23/2009 15:56:20 PAGE 2   

END OF MODULE INFORMATION.


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