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JTAG wiggler

Started by Aravind April 9, 2007
Hi i recently bought an ARM7 kit from olimex SAM7EX256.i plan to put
together my own jtag wiggler. but there seem to be so many schematics
on the net. Does anyone have the schematic of the wiggler which is
known to work with the olimex board or any olimex board with SAM7?
Can anyone else get to this site? Is the original poster on here?
www.oocdlink.com will not resolve for me and I'd really like to see the
details on this. The website looks like it's trying to load, but it
eventually just fails after a minute or two.

I found:
http://www.joernonline.de/dw/doku.php?id=projects:oocdlink:2_oocdlinks
..but I would like to know if there are any updates or possibly an Eagle
file, as I make my own DIY boards and I can't use Gerber for that.

It doesn't look that hard, I might just make my own based off his schematic.

Mark Higgins

----- Original Message -----
From: "Jn Kaipf"
To:
Sent: Tuesday, April 10, 2007 4:31 PM
Subject: AW: [AT91SAM] Re: JTAG wiggler
I published the schematic and layout of a USB-JTAG debugger which uses
FT2232D. You can find it here: www.oocdlink.com
I tested the debugger with the SAM7-EX256 and SAM7-H64 boards from Olimex.

Kind regards
Joern

> -----Ursprgliche Nachricht-----
> Von: A... [mailto:A...] Im Auftrag
> von Rommel G Custodio
> Gesendet: Dienstag, 10. April 2007 18:43
> An: A...
> Betreff: [AT91SAM] Re: JTAG wiggler
>
> Most boards that I've come across support the standard ARM JTAG
> connection (2x5 connector). If the chip and the board supports this
> standard, the only thing that you should worry about is the software.
> I use OpenOCD, which works with various wigglers.
>
> I have no suggestion on a DIY wiggler since I have an Olimex
> ARM-USB-OCD, http://www.olimex.com/dev/arm-usb-ocd.html (I don't have
> the required hand dexterity to solder one). I'm using it on the Atmel
> AT91SAM7S256-EK.
>
> If there are any inconsistencies please don't hesitate to correct me
> since I'm a relative newbie.
>
> --- In A..., "Aravind" wrote:
> >
> > Hi i recently bought an ARM7 kit from olimex SAM7EX256.i plan to put
> > together my own jtag wiggler. but there seem to be so many schematics
> > on the net. Does anyone have the schematic of the wiggler which is
> > known to work with the olimex board or any olimex board with SAM7?
> > Yahoo! Groups Links
>

Yahoo! Groups Links
Hi Mark,

> Can anyone else get to this site? Is the original poster on here?
> www.oocdlink.com will not resolve for me and I'd really like to see the
> details on this. The website looks like it's trying to load, but it
> eventually just fails after a minute or two.

Thanks, for the hint with the website. The URL was redirected recursively...
now it should lead the correct page.

> I found:
> http://www.joernonline.de/dw/doku.php?id=projects:oocdlink:2_oocdlinks
> ..but I would like to know if there are any updates or possibly an Eagle
> file, as I make my own DIY boards and I can't use Gerber for that.

After same more guys asked for the EAGLE files, I'll upload them in the
course of this week.

> It doesn't look that hard, I might just make my own based off his
> schematic.

It isn't hard ;)

Joern