Re: cyclic redundancy check 4-bit



bwv539 wrote:
Well, first of all, thanks to everybody for the answers.
I know noting about Hamming code. I am reading some information on
Wikipedia, if you have more resources please tell me. I have to
implement this in C.

That's very simple.

http://www.abvolt.com/research/research.htm#Hamming

I try to explain better my application: I have to transmit a single
bit every 80ms, so an 8-bit sequence takes 0.64s. The receiver will
trigger on the first bit and start collecting a sequence of 8 bits.

Just curious what could be such a slow system. The only thing that I can guess of is the communication to the drill head by the fluid pressure in the drill column.


The information to be transferred requires 4 bits, so I thought that a
good use of the other 4 bits is for error checking, but if there is a
way to decrease total number of bits it is better even if not strictly
required.

Then Hamming 8.4 is a way to go.

Vladimir Vassilevsky

DSP and Mixed Signal Design Consultant

http://www.abvolt.com
.

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