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....


-- 
Peter Barada
peter.barada@logicpd.com