I have a new board, my first using the 18f67J60 'EtherPIC'.

In the process of designing this, I needed magnetics which are capable=20
of Extended Temperature range - and I found seemingly compatible (and=20
easily obtainable) magnetics from EPCOS.  =20
(http://www.epcos.com/inf/30/ds/lan_mod/B78476A8247A003.pdf )

So tonight was the first attempt at getting firmware on the board, and=20
everything working.   After tweaking on the Microchip TCP/IP stack (to=20
eliminate a lot of crap related to their samples), I got some sample=20
code loaded, and verified working, EXCEPT I couldn't get an ethernet link.

Eliminating a lot of a long story of a few hours of troubleshooting, I=20
finally decided to try removing the magnetics from the board and=20
operating 'magneticless' - or more accurately rely on the magnetics in=20
the ethernet switch to do the isolation - amazingly it linked first try.

So obviously there was something weird with these magnetics.  I don't=20
have a spare where I am right now but I sure can't see anything=20
mechanically wrong with them (and electrically they seem ok - at least=20
as much as you can tell with a voltmeter).

I've been through the datasheets and compared specs and requirements,=20
and pinouts, about a thousand times (ok, an exxageration, but it sure=20
feels like it).

So the question being:  Can anyone see something I missed as far as the=20
specs on these magnetics which would make them *not* work with the 67J60?

-forrest
--=20
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