Re: [Gumstix-users] Openwince Jtag Tools

[David F. <dav...@ya...>]

Craig,

Please help me along a little with svn. I only
use it with local file repos.

I assume  I want to "svn export" locally and
import into the gumstix repos.
Something like: (forgive the line wrap)
From my projects root.

svn import .
http://svn.gumstix.com/gumstix-buildroot/branches/projects/jtag
--username <me> --password <guessit>

David.


--- Craig Hughes <cr...@gu...> wrote:

> On Oct 14, 2005, at 8:34 PM, David Farrell
> wrote:
> 
> > <Off list>
> 
> Well, you sent to the list, but anyway... :)

Yeah, pretty stupid huh?

> 
> > Craig,
> >
> > Would you be interested in hosting a svn
> > repository for my patched version of the
> > OpenWinCE jtag software?  Marcel Telka does
> not
> > seem to have the time for maintaining patches
> now
> > and I plan to start porting to the gumstix as
> a
> > host.
> 
> Yup.  I've create
>
http://svn.gumstix.com/gumstix-buildroot/branches/
> 
> projects/jtag and given your userid write
> permissions to that dir.   
> Go crazy :)

Great, crazy I can do.

> ...
> That would be very cool.  We've been thinking
> for a while at gumHQ  
> that it'd be useful to be able to use a gumstix
> as a JTAG *host*,  
> primarily so that we could use one to easily
> bulk-flash lots of other  
> gumstix.  Actually, what we really want to do
> is hook the ttyS0 on  
> the target gumstix to the ttyS1 on the
> controller gumstix, then use  
> the controller to JTAG control the target,
> reflash it, then watch the  
> target boot by monitoring its console output. 

Jtag as it is via wiggler is too slow, about one
hour for the whole 4MB flash.  The gumstix should
be able to bitbang a whole lot faster.  I have a
scheme that can use the sync serial to go faster
yet, but a little hw in between.


> Then if the gumstix  
> was successfully reflashed and rebooted, light
> a "PASS" green LED,  
> else light a red "FAIL" LED.  Maybe have some
> kind of multiplexer on  
> there so it can be JTAG flashing one target
> while the previous target  
> is booting or something.  Anyway, lots of neat
> possibilities, with  
> the missing piece being the JTAG software.

Don't forget interconnect testing, my real
interest.

This should be a start. Thanks to the OpenWince
group.

David.