CRC-x16 + x12 + x5 + 1

vincenzoelettronico wrote:
Polynom: x16 + x12 + x5 + 1

Hi
The procedure would serve me in vb6 for the calculation of the CRC on
a vector of 14 byte

Thanks to all in advance

For what? Do you actually have a question, or are you expecting someone to
write a code module for you?


--
Regards,

Michael Cole

***********************************
***********************************
I have the procedure in C but I don't succeed in translating her/it in
visual basic! if someone can lend me a hand, helps me to graduate me! hi

Polynom: x16 + x12 + x5 + 1 ? CRC_POLYNOM = 0x8408;

Start Value: 0xFFFF ? CRC_PRESET = 0xFFFF;

C-Example:

unsigned int crc = CRC_PRESET;

for (i = 0; i < cnt; i++) /* cnt = number of protocol bytes without CRC */

{

crc ^= DATA[i];

for (j = 0; j < 8; j++)

{

if (crc & 0x0001)

crc = (crc >> 1) ^ CRC_POLYNOM;

else

crc = (crc >> 1);

}

}



.

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