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crc's on sd-card (resmed)
#1
crc's on sd-card (resmed)
on resmed devices i found 4 and 8 bit crc's.

the 4 bit ones are crc32, little endian
(do crc32 on linux shell and read pairwise from the back).

what about the 8 bit ones ?

(according to wikipedia crc isn't designed to avoid tempering
but to detect data failures, which also could make it necessary
to restore them by recalculating. just saying).
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