--- In "anatek36" <> wrote:
>
> The main issue we face is what can we create to send out to
> our field users to restore a completely corrupted flash memory chip
> on a TS-7400 board?
> I understand that there is only 2M on the 9441 board, but we
> could possibly make a version of the 9441 that has much bigger
> flash.
>
Hi anatek,
Yes, have something custom made - primarily scripts.
With enough flash on a 9441 and an intelligent script or scripts that
could be a solution.
Have you considered the solution documented in
http://www.embeddedarm.com/Manuals/ts-7400-info.txt, paragraph
"Software-update facility in factory configuration"? It describes the
use of a USB storage device with a script to perform software updates.
Maybe using this in conjunction with the 9441 will get you what you need.
I have an interest in your solution, whenever you get it. I have a
project coming up using the TS-7400 where I'll have to deal with the
same issue: The product with an integral TS-7400 may have its on-board
flash get corrupted. It may have to have the functionality of the 9441
built in to allow on-site recovery.
There are two major tasks (with a bunch of minor ones in each of
these) to restoring a TS-7400 completely, 1) Restore the fastboot
kernel and the initrd, 2) Get your application code on the on-board
flash (partition 3?).
If you use the SD card then you have another step to getting parts of
a corrupted 7400 going - at least the restoration of your application
code.
The direction I'm going to go with my solution is use of the USB
storage and/or the SD card in conjunction with a customized load on a
TS-9441 to get the corrupted flash fixed. I feel this is one of the
better solutions since it doesn't require larger flash on the TS-9441.
Thanks for posting the question - it helped me think about it before
the pressure of trying to come up with all the scenarios myself.
Good luck.
----
Andy
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