[PATCH] Add driver for M-sys / Sandisk diskonchip G4 nand flash
Mike Dunn
mikedunn at newsguy.com
Thu Oct 13 11:52:34 EDT 2011
On 10/13/2011 01:37 AM, Ivan Djelic wrote:
>
> I'm still a little puzzled as to how this Hamming code works.
> If it was meant to correct 1 bitflip in 7 bytes + 1 parity byte, then it
> should be at least 12 bits long.
> If the idea is to simply detect a single bitflip, then 6 bits are enough.
> Maybe the probability of having 2 bitflips in 7 oob bytes is low enough to
> allow reading oob using this simple check ?
Hmm. They claim 1 bit correction, 2 detection.
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