[U-Boot-Users] flash question
Stefan Roese
mail at stefan-roese.de
Sat Dec 4 20:39:12 CET 2004
On Saturday 04 December 2004 20:18, Wolfgang Denk wrote:
> I'd recommend to use blocks normally, but secors for one block (using
> one or more sectors to store the U-Boot envrionment). For such a
> configuration, CFG_MAX_FLASH_SECT = 47 would be correct.
Yes. But keep in mind: If you sometime want to use bigger flash's with more
sectors (blocks) you will have to increase this setting!
> > No! You have to configure the maxmium sector count with this define (and
> > _not_ the sector-size!). Most of the time I set this to 256. This should
> > sufficient for most flash's.
>
> Stefan: as you can see, this is actually a bad advice, as it would be
> wrong here.
OK, since we use these SST flash's alway in block mode I forgot about the
sector mode.
By the way: Erase time is not a real issue with the SST flash's. Even chip
erase is done in a few ms.
Best regards,
Stefan
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