[ECOS] [OT] JTAG and the Wiggler in linux

Roland Caßebohm roland.cassebohm@visionsystems.de
Wed Apr 30 08:41:00 GMT 2003


On Mittwoch, 30. April 2003 02:24, Scott Dattalo wrote:
> On Tue, 29 Apr 2003, Roland Caßebohm wrote:
> > I have also tried as follows:
> >
> > jtag> cable parallel 0x378 WIGGLER
> > Initializing Macraigor Wiggler JTAG Cable on parallel port at 0x378
> > jtag> detect
> > jtag>
> >
> > But then I get no answer from detect.
> >
> > I think our processors are not supported :-(
> >
> > JTAG-aware parts (chips):
> > - Atmel ATmega128 (partial support)
> > - Broadcom BCM1250
> > - Hitachi SH7727
> > - Intel IXP425
> > - Intel SA1110
> > - Intel PXA250/PXA255
> > - Intel PXA261/262
> > - Xilinx XC2C256-TQ144
> > - Xilinx XCR3128XL-CS144
> > - Xilinx XCR3256XL-FT256
> >
> > To bad, this is just what I'm searching for.
>
> The AT91r40008 (and all arm7tdmi cores AFAIK) do not support the full
> JTAG. However, it does support enough to perform rudimentary debugging
> (e.g. OCD Commander works).
>
> I was digging around today and stumbled upon this:
>
> http://www.ocdemon.com/gdb_mods.tgs
>
> These are the mods Macraigor Systems have made to GDB to support the
> wiggler. Hmm. I wonder if anyone has tried applying these files (they're
> not patches) agains the current gdb source?

I have also tried the gdb with modifications of Macraigor Systems, but this
does only work under Windows for the wiggler.



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