CRC Berechnung LTC6804

uint16 Crc15( uint16 u16InCrc, uint8 u8InData )

{

  uint8 u8Index;

  uint16 u16Data;

  uint16 u16Eor;

  u8Index = 8;  

  u16Data = u16InCrc ^ (uint16)((uint16)(u8InData) << 7);

  do{

    u16Eor = u16Data & 0x4000 ? 0x4599 : 0;

    u16Data = (uint16)(u16Data << 1);

    u16Data ^= u16Eor;

  }while(--u8Index);

  return u16Data;

}

uint16 Crc15Block(uint16 u16Crc, puint8 pu8Data, uint8 u8Length)

{

  if(u8Length)do{

          u16Crc = Crc15( u16Crc, *pu8Data++ );      

  }while(--u8Length);

  u16Crc = (u16Crc & 0x7FFF) << 1;

  return u16Crc;

}

#ifndef __CRC15_h

#define __CRC15_h

#include "SewDTyp.h"

#ifndef CRC15_C

#define CRC15_EXT extern

#else

#define CRC15_EXT

#endif

#define CRC_INIT 0x0010

#define CRC_CORRECT 0//CRC_VALUE

CRC15_EXT uint16 Crc15Block( uint16 u16Crc, puint8 pu8Data, uint8 u8Length ); 

#endif