// **************************

// * CRC 8 bestimmen        *

// **************************



void DoCRC8(unsigned char * ucIn, unsigned int * uicrc)

{

	const unsigned int CRC_LOOK_UP[16]={0x00,0x1d,0x3a,0x27,0x74,0x69,0x4e,0x53,

                                        0xe8,0xf5,0xd2,0xcf,0x9c,0x81,0xa6,0xbb};



    unsigned int uiNibble1,uiNibble2;



    uiNibble1=*ucIn&0x0f;                       // unteres Nibble Datum speichern

    uiNibble2=(*uicrc>>4);                      // oberes Nibble CRC speichern

    *uicrc=((*uicrc<<4|uiNibble1)&0xff)^CRC_LOOK_UP[uiNibble2];



    uiNibble1=(*ucIn>>4)&0x0f;

    uiNibble2=(*uicrc>>4);                      // oberes Nibble CRC speichern

    *uicrc=((*uicrc<<4|uiNibble1)&0xff)^CRC_LOOK_UP[uiNibble2];

}