crc16.lst

CRC16 验证 51C语言 C RC16 验证 51C语言

C51 COMPILER V7.01  CRC16                                                                  02/26/2007 10:21:30 PAGE 1   


C51 COMPILER V7.01, COMPILATION OF MODULE CRC16
OBJECT MODULE PLACED IN crc16.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE crc16.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <reg51.h>
   2          unsigned char tbufpt[8]={0x01,0x03,0x02,0x0F,0x9F,0x01};//01 03 02 0F 9F
   3          unsigned int tcrc;
   4          /************************************************************
   5          发送字节crc校验程序
   6           void tcrc16(void)
   7          功能：发送字节crc校验，校验值位于tcrc
   8          *************************************************************/
   9          void tcrc16(void)
  10          {
  11   1      unsigned char i,j;
  12   1      
  13   1      tcrc=0xffff;
  14   1      for (j=0;j<5;j++)
  15   1      {
  16   2         
  17   2          tcrc^=tbufpt[j];
  18   2              for(i=0;i<8;i++)
  19   2               { 
  20   3              
  21   3               if(tcrc&0x0001)
  22   3               {
  23   4               tcrc>>=1;
  24   4               tcrc=tcrc&0x7fff;
  25   4               tcrc^=0xa001;
  26   4               }
  27   3               else
  28   3               {
  29   4               tcrc>>=1;
  30   4               tcrc=tcrc&0x7fff;
  31   4               }
  32   3               }
  33   2      }
  34   1      tbufpt[6]=(tcrc>>8);
  35   1      tbufpt[7]=tcrc;  
  36   1      }
  37          void main(void)
  38          {
  39   1      unsigned temp;
  40   1      while(1)
  41   1      {
  42   2      tcrc16();
  43   2      temp=tcrc;
  44   2      }
  45   1      
  46   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     85    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     10       2
   IDATA SIZE       =   ----    ----
C51 COMPILER V7.01  CRC16                                                                  02/26/2007 10:21:30 PAGE 2   

   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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