Re: [Gumstix-users] Unresponsive connex 400g

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Hey,

Again, thanks.  As unlikely as it seems that I would fry U-boot,
because c'mon, you'd have to confirm it.. I did issue the command
'protect all off' before writing to memory.  I knew what I was doing
was stupid and risky, but when I followed the directions from the
Tutorial (which I had followed several times before), The gumstick
replied that the memory had been protected (which it was not before).=20
This time, I had installed the CF card on the 80pin highrose.  Could
that have caused this strange behavior?

In any case, due to my stuipidity, looks like I need to figure out how
to reflash this thing.  Craig, it says on the www.gumstix.com that
they(you?) can provide the tool needed to reflash the device.  Do you
know anything about this?  I sent an e-mail a few days ago and haven't
heard anything back.

Thanks,
Craig Casey

On 6/8/05, Craig Hughes <cr...@gu...> wrote:
> You can't boot it from anything without u-boot, which is the
> bootloader.  If you have u-boot though, I still haven't integrated CF
> support for the gumstix boards into u-boot, so even then, not yet.
>=20
> As Bhaskar pointed out though, it's pretty unlikely that you fried u-
> boot, unless you typed the command "protect off all" or "protect off
> 1:0-1" in u-boot.  If you didn't do that, then the hardware will have
> prevented you from clobbering u-boot, unless you got very unlucky and
> a rogue device driver wrote exactly the wrong sequence of
> instructions to exactly the wrong address in mapped memory.
>=20
> C
>=20
> On Jun 8, 2005, at 4:56 PM, Craig Casey wrote:
>=20
> > Hey,
> >
> > Thanks again, your help is very much appreciated.  Do you (or does
> > anyone) know if it is possible to boot these devices off of a compact
> > flash card?  Before I invest in a jtag connector, I'd like to make
> > sure that the device isn't fried in some more significant way.
> >
> > Craig
> >
> >
> > On 6/8/05, Bhaskar Mukherjee <bha...@gm...> wrote:
> >
> >> Hi Craig,
> >>        The waysmall will be hard to work with. The tweener has vias
> >> that you can use to access the jtag pins. if you can somehow solder
> >> wires to the jtag pins on the 60 pin connector then you can use a
> >> jtag
> >> cable. the jtag pins are tdi, tdo, tms, tck, nreset. the jtag
> >> cable is
> >> not the serial cable. it is a cable that connects to the parallel
> >> port
> >> of the computer and on the other end it has either fly leads for the
> >> above mentioned pins or it has a 20 pin standard jtag header. popular
> >> commercial jtag cable is the "macraigor wiggler".
> >>      look at the page
> >> http://www.gumstix.org/tikiwiki/tiki-index.php?page=3DJTAG
> >>    it has all the information on jtag and the attachment contains the
> >> scripts that are used by the gumstix folks for reflashing.
> >> Bhaskar.
> >>
> >> On 6/8/05, Craig Casey <cra...@gm...> wrote:
> >>
> >>> Hey,
> >>>
> >>> Thank you for your ideas.  I really apprecaite it.  Is a jtag cable
> >>> just the same as a serial cable?  what about the tweener.. I've
> >>> got a
> >>> waysmall board (with 2 serial ports instead of just 1).  Will
> >>> this do
> >>> the trick?  Do you have any idea how I go about reflashing once I've
> >>> got the right hardware?
> >>>
> >>> Thanks again,
> >>> Craig
> >>>
> >>>
> >>> On 6/8/05, Bhaskar Mukherjee <bha...@gm...> wrote:
> >>>
> >>>> Hi Craig,
> >>>>        You can erase u boot accidentally only if you unprotect the
> >>>> first sector of the flash. In case you have done that, you can
> >>>> send it
> >>>> back to gumstix and get it flashed. If you have a jtag cable at
> >>>> hand
> >>>> and a tweener then you can try to use them to flash another image
> >>>> yourself. Leon has posted schematics and pcb design files for a
> >>>> simple
> >>>> jtag dongle on the main wiki page, you may want to try it out if
> >>>> you
> >>>> have access to electronic components and soldering iron.
> >>>> Bhaskar.
> >>>>
> >>>> On 6/8/05, Craig Casey <cra...@gm...> wrote:
> >>>>
> >>>>> Hello,
> >>>>>
> >>>>> I've run into some problems with my connex 400g.  It seems that
> >>>>> I may
> >>>>> have accidentally erased Uboot.  Does anyone know how to
> >>>>> restore it?
> >>>>> Is it possible, or do I need additional hardware?
> >>>>>
> >>>>> Thanks,
> >>>>> Craig Casey
> >>>>>
> >>>>>
> >>>>> -------------------------------------------------------
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> >>>>>
> >>>>
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> >>>> -------------------------------------------------------
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> >>>> a projector? How fast can you ride your desk chair down the
> >>>> office luge track?
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> >>>> Play to win an NEC 61" plasma display: http://www.necitguy.com/?r
> >>>> _______________________________________________
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> >>>>
> >>>>
> >>>
> >>>
> >>> -------------------------------------------------------
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> >>> you shotput
> >>> a projector? How fast can you ride your desk chair down the
> >>> office luge track?
> >>> If you want to score the big prize, get to know the little guy.
> >>> Play to win an NEC 61" plasma display: http://www.necitguy.com/?r
> >>> _______________________________________________
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> >>>
> >>>
> >>
> >>
> >> -------------------------------------------------------
> >> This SF.Net email is sponsored by: NEC IT Guy Games.  How far can
> >> you shotput
> >> a projector? How fast can you ride your desk chair down the office
> >> luge track?
> >> If you want to score the big prize, get to know the little guy.
> >> Play to win an NEC 61" plasma display: http://www.necitguy.com/?r
> >> _______________________________________________
> >> gumstix-users mailing list
> >> gum...@li...
> >> https://lists.sourceforge.net/lists/listinfo/gumstix-users
> >>
> >>
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by: NEC IT Guy Games.  How far can
> > you shotput
> > a projector? How fast can you ride your desk chair down the office
> > luge track?
> > If you want to score the big prize, get to know the little guy.
> > Play to win an NEC 61" plasma display: http://www.necitguy.com/?r
> > _______________________________________________
> > gumstix-users mailing list
> > gum...@li...
> > https://lists.sourceforge.net/lists/listinfo/gumstix-users
> >
>=20
>=20
>=20
> -------------------------------------------------------
> This SF.Net email is sponsored by: NEC IT Guy Games.  How far can you sho=
tput
> a projector? How fast can you ride your desk chair down the office luge t=
rack?
> If you want to score the big prize, get to know the little guy.
> Play to win an NEC 61" plasma display: http://www.necitguy.com/?r=3D20
> _______________________________________________
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>