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An other unknown CRC

unknown crc ? what is used


 

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Author Message
xtrusion
Guest







Dec 25, 2010 1:41 pm

I have an other unknown CRC

hope someone can help with this one

send 7f 12 00 42 02 00 0c 00 30 10 00 00 9a 01 00 00 00 00 00 00 83 7b
send 7f 12 00 42 02 00 0c 00 30 10 00 00 9a 01 00 00 9a 01 00 00 4b 55
send 7f 12 00 42 02 00 0c 00 30 10 00 00 9a 01 00 00 34 03 00 00 93 4e
send 7f 12 00 42 02 00 0c 00 30 10 00 00 9a 01 00 00 ce 04 00 00 5b 09
send 7f 12 00 42 02 00 0c 00 30 10 00 00 9a 01 00 00 68 06 00 00 a3 11

the last 2 bytes is CRC

I tried with SRP but cannot find the correct one.. maybe i'm doing something wrong..

hope someone can help me out on this one

best regards,

Robert
Gammatester
Guest







Dec 25, 2010 5:27 pm

SRP finds two sets of Rocksoft parameters:
Code:
===== Result parameter sets =====
CRC=$837b  Poly=$8005  init=$51e1  xorout=$ffff  refin=false  refout=false
 *** Second data set verified
 *** Third  data set verified
CRC=$837b  Poly=$8005  init=$53c1  xorout=$0000  refin=false  refout=false
 *** Second data set verified
 *** Third  data set verified
===== done =====
Try them with data of different byte counts (if available).

Hope that helps
Gammatester
xtrusion
Guest







Dec 28, 2010 9:53 pm

Perfect...

CRC=$837b Poly=$8005 init=$53c1 xorout=$0000 refin=false refout=false


was the correct one Smile thanks very much

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