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CV values are stored as 8 bits of information which can have a value of 0 or 1. When all 8 values are 1, the result when added together in an identifiable way is 255. When you see 255, either all the bits of information detected were 1 or more likely, nothing was seen at all, so 1 was assumed for each.
David

CV values are stored as 8 bits of information which can have a value of 0 or 1. When all 8 values are 1, the result when added together in an identifiable way is 255. When you see 255, either all the bits of information detected were 1 or more likely, nothing was seen at all, so 1 was assumed for each.
David