C51 COMPILER V9.53.0.0   PACKDATA                                                          09/30/2018 11:45:28 PAGE 1   


C51 COMPILER V9.53.0.0, COMPILATION OF MODULE PACKDATA
OBJECT MODULE PLACED IN .\Output\PackData.obj
COMPILER INVOKED BY: D:\Keil_v5\C51\BIN\C51.EXE ..\..\Code\User\Common\PackData.c LARGE OPTIMIZE(0,SPEED) BROWSE INCDIR(
                    -../../Code/Include;../../Code/User;../../Code/User/Common;../../Code/User/Driver) DEFINE(FOSC_160000=1) DEBUG OBJECTEXTE
                    -ND PRINT(.\Output\LST\PackData.lst) TABS(2) OBJECT(.\Output\PackData.obj)

line level    source

   1          /**
   2          * @File:       PackData.c
   3          * @Author:     Kinve JQ
   4          * @Version:    V0.1
   5          * @Date:       2018.09.29
   6          * @Brief:      封包与校验
   7          * @Modify:
   8              2018.09.29.Kinve:1.创建文件
   9          **/
  10          
  11          #include "PackData.h"
  12          
  13          u8 CrcData ( u8 *Data, u8 Len )
  14          {
  15   1          u8 i, crc = 0;
  16   1      
  17   1          for ( i = 0; i < Len; i++ )
  18   1          {
  19   2              crc ^= Data[i];
  20   2          }
  21   1      
  22   1          return crc;
  23   1      }
  24          
  25          #define DATA_LEN 4
  26          //AA  长度1[类型 .....] 校验码 BB
  27          u8 CheckData ( u8 *Data, u8 Len, pDataBuff *Out )
  28          {
  29   1          //u8 tail_pos = 0;      //尾位
  30   1          //u8 head_pos = 0;      //0xF0 头位置
  31   1          u8 i, size;
  32   1      
  33   1          for ( i = 0; i < Len - 1; i++ )
  34   1          {
  35   2              if ( Data[i + 0] == 0xAA )      //检查头尾"@" .. "#"
  36   2              {
  37   3                  //head_pos = i;
  38   3                  if ( Len - i >= DATA_LEN )    //剩余数据>=5
  39   3                  {
  40   4                      size = Data[i + 1];
  41   4      
  42   4                      if ( Data[i + size + 3] == 0xBB )
  43   4                      {
  44   5                          Out->Data = &Data[i];
  45   5                          Out->Len = DATA_LEN + size;
  46   5      
  47   5                          if ( CrcData ( &(Out->Data[2]), Out->Len-DATA_LEN ) == Data[i + size + 2] ) //校验码
  48   5                          {
  49   6                              return 1;
  50   6                          }
  51   5                      }
  52   4                  }
  53   3              }
C51 COMPILER V9.53.0.0   PACKDATA                                                          09/30/2018 11:45:28 PAGE 2   

  54   2          }
  55   1      
  56   1          return 0;
  57   1      }
  58          
  59          static u8 PackBuff[50];
  60          u8 PackData ( u8 *Data, u8 Len, u8 *Out )
  61          {
  62   1          u8 i;
  63   1      
  64   1          if ( Len < sizeof ( PackBuff ) - DATA_LEN )
  65   1          {
  66   2              PackBuff[0] = 0xAA;
  67   2              PackBuff[1] = Len;
  68   2      
  69   2              for ( i = 0; i < Len; i++ )
  70   2              {
  71   3                  PackBuff[i + 2] = Data[i];
  72   3              }
  73   2      
  74   2              PackBuff[i + 2] = CrcData ( Data, Len );
  75   2              PackBuff[i + 3] = 0xBB;
  76   2      
  77   2              //拷贝到Out
  78   2              for ( i = 0; i < Len + DATA_LEN; i++ )
  79   2              {
  80   3                  *(Out+i) = PackBuff[i];
  81   3              }
  82   2      
  83   2          return Len + DATA_LEN;
  84   2          }
  85   1        return 0;
  86   1      }
  87          
  88          /********************* (C) COPYRIGHT Kinve JQ  *******END OF FILE ********/
  89          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    774    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =     73    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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