[bookport] FAT32 and maximum storage (CF) size
- From: <chris.BP.FL@xxxxxxxxxxxxxxx>
- To: <bookport@xxxxxxxxxxxxx>
- Date: Wed, 18 Jan 2006 01:47:10 +0100
list,
why FAT32 does not have to mean "unlimited" card size.
although FAT32 (which uses 28 and not 32 bits for cluster addressing) can
handle large storage sizes (with 4kByte clustersize 1tByte, with 32kByte
clustersize 8tByte, its maximun in practice is determined by the system
using it (for example Windows XP can format "only" 32GByte, but can
read/write larger size).
the designers of the BP probably write their own low-level IO-routines. they
might have choosen to directly address every byte of the CF, using a 32 bit
address which would result in a 4GByte (=2^32) limit.
Chris Sauer.
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