Chris Rutter wrote:
>
> On Sat, 16 Sep 2000, Philip Blundell wrote:
>
> > Can you tell what hardware implements the watchdog?
>
> I'm almost positive it wasn't something on any of the obvious data
> sheets (like the '7500 one); I got in touch with someone at ex-ART (or
> whichever bit of the Acorn pie does NCOS 2) and I think they told me,
> but this was pre-fun, so I'd've lost it.
>
> Maybe the quickest route is to get back in touch with them. I have a
> feeling someone called Neil supplied the information.
[snip]
Yes, I do recall us having this conversation last year ;-) To be perfectly
honest I don't remember how it was done. We have done several products with
hardware watchdogs during that period. Ironically none of them made it into
major production... Now we go for a more simple software watchdog system.
If you can run the Linux loader with interrupts off, I would suggest trying
that. I vaguely remember this being an issue before.
After the shakeup with Acorn/Element 14/Pace last year a lot of that
documentation has disappeared - in fact anyone who worked on the hardware for
that product is no longer with either E14 or Pace.
Neil.
--
Neil Bingham, Senior Software Engineer
Pace Micro Technology plc Tel: +44 1223 518574
645 Newmarket Road, Fax: +44 1223 518526
Cambridge, United Kingdom, CB5 8PB WWW: http://www.pace.co.uk/
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