Author: 杜中栋 Date: To: yaffs Subject: [Yaffs] 答复: Can I use yaffs2 on 512-byte sized nand flash?
>
> On Thursday 24 July 2008 12:21:26 James Kehl wrote:
> > > -----Original Message-----
> > > From: yaffs-bounces@lists.aleph1.co.uk [mailto:yaffs-
> > > bounces@lists.aleph1.co.uk] On Behalf Of ???
> > > Sent: Wednesday, 23 July 2008 9:29 PM
> > > To: yaffs@lists.aleph1.co.uk > > > Subject: [Yaffs] Can I use yaffs2 on 512-byte sized nand flash?
> >
> > ...
> >
> > > In the section "Tag structure", below the table I noticed this
> > > message"To get enough spare bytes for this tagging structure
> > > requires a chunk-size of at least 1kB." I think it's
> telling me that
> > > I cannot use yaffs2 on the
> > > 512- byte sized nand flash(K9F5616UOC).
> >
> > Chunk size is not the same thing as Flash sector size. You can lump
> > multiple Flash sectors together into a chunk.
>
> You can also use "inband tags" which put the tags within the
> data area instead of the spare area. This overcomes the
> problem of too few spare bytes to hold the tags. This
> approach, however, means that chunks are no longer 2^n
> aligned and this might have some impact on performance.
>
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