Re: [Yaffs] yaffs2 flash image handling tools

On Thursday 03 November 2011 13:28:03 Peter Barada wrote:
> On 11/02/2011 07:48 PM, Charles Manning wrote:
> > Hi folks
> >
> > One piece of the yaffs2 puzzle that has been missing forever is some
> > means of extracting/loading images from/to flash and being able to
> > manipiulate these on the host.
> >
> > This is generally thwarted by different flash drivers having different
> > ecc layouts.
> >
> > What I have in development is something called ymemtool which is intended
> > to do all the nandread/nandwrite functions with a yaffs slant.
> >
> > In the fullness of time, ymemtool will be able to do all of:
> >
> > 1) Tell us info about the flash including the oob layout.
> > 2) Read the contents of flash, apply the oob layout and so write an image
> > file in a consistent format.
> > 3) Read a consistently formatted image file, apply the oob layout and
> > write to nand.
> >
> > At this stage, (1) works and (2,3) are work in progress.
> >
> > Then a host-side program will be able to read/write the consistently
> > formatted image file.
> >
> > -- Charles
>
> Can this tool also optionally suppress the chekpoint? I ask since if I
> want to burn a yaffs image to multiple devices the checkpoint can cause
> problems if the burn has to skip bad blocks....

Suppressing checkpoint writing is certainly one of the features I am adding.