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CRC code generator

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CRC code generator

by Nawaz Satvilkar

 

14 Mar 2007 (Updated 14 Mar 2007)

Code generates CRC code for any binary data stream & generator polynomial

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Description

The standard polynomials are not used to make it more flexible.
User provide data stream and generator polynomial.

Required Products Communications System Toolbox
MATLAB release MATLAB 7.0.4 (R14SP2)
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Comments and Ratings (19)
15 Mar 2007 Jos x@y.z

How do ever expect someone to use this code succesfully if you do not provide any help whatsoever.

Moreover, this is a script that may override existing variables ...

23 May 2007 Ahmad Wazzi

Easy to follow. For the previous comment, please understand how CRC is done and you will find the code straight forward. Code is self explanatory.

24 May 2007 daty daty

I need CRC-32 in my simulations.
Should I take this script and change
the generator polynomial to find it ??

27 Jun 2007 sundas zahid

yeah the code is good but but it can be modified as to the input can be made real time....

21 Aug 2007 jef al

your code can only work if the number of data streams are below 360 bits. any higher bits gives error. using GFCONV method works fine

23 Aug 2007 fred uit vosselaar

good code works fine for me. thanks a lot

25 Sep 2007 mona sherdiwala  
24 Nov 2007 Mohsin Shaikh )  
13 Mar 2008 N Fine

unstable and slow with long input vectors - better do everything above Z(2)

31 Mar 2008 Andrea Silvestri

Maybe the for cycle could be replaced with on single line: r=mod(r,2)

11 May 2008 Rudheesh Raghav

Good Work..

I feel the for loop is not required..

20 May 2008 li ming

hao

23 Jun 2008 Glen Klein

Communication toolbox is not required. Another reviewer (Andrea Silvestri) is right: "the for cycle could be replaced with on single line: r=mod(r,2) "

29 Aug 2008 Jo Mateix

Was great! Thanks!

14 Nov 2008 grat c

i used wiki's example to check for its correctness:
http://en.wikipedia.org/wiki/Cyclic_redundancy_check#Computation_of_CRC

msg = [1 1 0 1 0 0 1 1 1 0 1 1 0 0]; poly = [1 0 1 1];
the program gives r = 1 0 0

i've also tried to do the XORs by hand...
i found it is indeed 1 0 1, not sure where goes wrong

19 Feb 2009 Jochen

does not working correct for all generator polynomials, see previous comment.
code needs review. See text bosk or wikipedia for correct (pseudo) code

20 Oct 2009 ATM

grat c> i think your calculation is worng. i hav calculated by hand as well, it gives crc=1 0 0.i think the code is correct.

thanks.

10 Dec 2009 George Nychis

CRC 32 code:
http://www.cs.washington.edu/homes/dhalperi/useful/crc32.m

04 Aug 2011 rakesh

can any one help me to write a code for crc-6 in matlab please

dis my id:rakeshreddy255@gmail.com

regards
rakesh

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Tag Activity for this File
Tag Applied By Date/Time
coding theory Nawaz Satvilkar 22 Oct 2008 09:04:19
information theory Nawaz Satvilkar 22 Oct 2008 09:04:19
crc Nawaz Satvilkar 22 Oct 2008 09:04:19
polynomials Nawaz Satvilkar 22 Oct 2008 09:04:19
flexibility Nawaz Satvilkar 22 Oct 2008 09:04:19
data stream Nawaz Satvilkar 22 Oct 2008 09:04:19
communications Nawaz Satvilkar 22 Oct 2008 09:04:20
crc Anand upadhyay 08 May 2011 10:26:47
crc Clovis Lunel 14 Jun 2011 07:09:56
coding theory Ashish 28 Jul 2011 02:30:21
crc Ashish 28 Jul 2011 02:30:26
coding theory sandeep ch 22 Oct 2011 03:56:41

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