[En-Nut-Discussion] Diagnosing an Ethernut

[Grzegorz Nosek]

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Hello all

I have a problem with my Ethernut rev. 1.3F board with a self-made
programmer (STK-200 compatible).

My Ethernut was a bit unused recently (shame on me!) and when I wanted
to play with it again the ISP interface refused to work (vendor id 0xff
etc., as if the board was not connected), however the board still
executes its previous program so it's not very damaged. Unfortunately
the app on board is very limited with regard to I/O (only the serial
port) so I cannot check any other components. I made a new programmer
and the symptoms are exactly the same - no communication with Ethernut
(however, I have no other way to check the programmer so I might have
screwed it up somewhere). I've used two different computers with the
parallel port in various modes (SPP, ECP, ECP+EPP) and still no go.

How can I diagnose the board more closely? Any ideas on how can I
program it now?

I'd like to state once again that the programmer used to work flawlessly
~ for quite a time.

Thanks in advance

Regards,
~ Grzegorz Nosek
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