28 Aug
2007
28 Aug
'07
12:40 p.m.
Hi,
> That wouldn't be the "Sunshine"
brand unit by any chance?
>
> I've got one of those too (along with their PAL programmer
>from around the same time) and it won't work in anything
>newer than an XT. :-(
This is usually a problem of timing loops....
Well, that's what I thought initially.
However, I tried the board in at least one '286 based AT clone which was
capable of being switched down to 4.77MHz and it still didn't want to know.
Not only that, but when installed in an AT class machine, the board simply
didn't appear in the computer's memory/IO map - verified by "prodding"
the
locations it was mapped to through "debug".
In addition to this, I also have three "Corvus" network cards (part of a
three station "Amstrad Network Kit") which act in a very similar manner when
installed in any AT class machine which has cache memory, IE i386+.
Disable the cache memory and everything works perfectly (if agonisingly
slowly), enable cache and the cards won't respond in any way at all....
TTFN - Pete.