Sun, 1 May 2005 15:48:17 +0100
On Sun, May 01, 2005 at 01:49:34PM +0100, Matt Evans wrote:
> >Turns out the E3 does obey the same sort of PBL format as the E2, but
> >there's some sort of timing issue with pblq I think. I've hacked up
> >something that does the job and rewritten my boot parameters to drop to
> >/bin/sh and I'm in! Some files from /proc can be seen at:
> What good news :) Is there a certain flash offset that contains just
> the boot string? Or is that wrapped into a block of a certain format?
> Could you share any specific info on this? I'd like to give it a try.
In my flash there's a PARMS "Q;Q;" block at 0x4400 into NAND, so I
> What was the pblq issue? IIRC it recognised the ESC on boot, but then
> gave up listening & carried on booting - does it just have a very
> short timeout at this point waiting for a packet command?
I gave up on pblq and wrote my own stuff, though probably I should have
just fixed pblq. I think what actually happens is the first command
times out but when you try again it works; I sit and wait for a
successful version command response before proceeding.
I've put what I'm using up at:
This can and will break your E3; don't use it unless you're really sure
you know what you're doing. Very rough and ready.
"pbltool read 0x0 0x10000 pbl.rom"
should give you a dump of the PBL. You probably want to let it print
"Prodding..." before powering on the E3. Or comment out the initial
[ Beware of exploding fridges. ]