Re: cyclic redundancy check 4-bit

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.
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.
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.
Time is not critical, so I might even increase the sequence lenght,
but that might increase probability of loosing a bit and could
increase rentransmission.
Hope this will help to understand better the setup.


.

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