Yan:
Thank you for the information. This is very informative. The code is
way beyond me but I am glad to see open source moving this direction.
Yes, I read about the jtag header being left off the ts7000 by ts for
"size" constraints. Given what I have read, the ts9420 does most of
this via pc104 header(eeprom,bootrom, redboot).
I guess where the jtag comes in handy is with the CPLD but I don't
really know what the manual means (ts7000 ) when it says the CPLD
allows for customized programming without need to do additional board
re-design.
What I really need, is to know the board I am messing with can take an
fis erase and not die to the point where I need jtag ice.
--- In "Yan Seiner" <> wrote:
>
> --- In "Yan Seiner" <yan@> wrote:
>
> >
> > On reading this, I have a question....
> >
> > Does the EP9302 have any provisions for JTAG? At least then it would
> > be possible to reflash the boot loader on a bricked board....
>
> OK, I should RTFM....
>
> Page 30 of the 7200 manual talks about the JTAG header....
>
> So if you really want to try reviving this board, you can download the
> jtag debrick utiltity here: http://www.seiner.com/debrick-4_6.tar.bz2
> --- this is *NOT FOR THE TS-7xx0 BOARDS*. It will not work out of the
> box; you will have to add the correct configuration for the TS-7xx0
> CPU and flash or use the appropriate options. I did not write this
> wonderful piece of software; I just incorporated a handful of patches
> floating around and created a new tarball.
>
> I use an unbuffered cable described here:
> <http://wiki.openwrt.org/OpenWrtDocs/Customizing/Hardware/JTAG_Cable>
> . I made mine 6" long, and haven't had any trouble reflashing boards
> with it provided the board hardware was known....
>
> I haven't looked at the board, but even if the JTAG header is a
> 'bed-of-nails' surface mount connections, soldering 5 wires to them is
> tricky but not hard.
>
> HTH,
>
> --Yan
>
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