Hi all,

This isn't exactly a NetBSD question but that is the only OS that I
currently run at home and you guys seem to know about computer IF
cards.

I'm looking for a card that can perform _fast_ (well for normal
serial anyway) HDLC. I'm looking at a target rate of about 2MBit.

Now... Just because you don't know of one quite this fast could you
please let me know what you do know about. I would be interested in
any card shifting more than 256Kbps.

Second... Don't worry about there not being a driver for NetBSD. If I
like the card then there soon will be one ;-)

You're probably interested in what this is for..... No.. Well I'll
tell you anyway:

I live about 3 miles from my office on line of sight. So I'm
constructing a radio link in one of the Ham microwave bands that will
give me a high speed link. Having done the link budget I think that I
can easily get 2MBit without breaking the bank on RF devices, or
completely filling the Ham band that I choose (1300MHz is currently a
good choice)

If you can't think of a good card then do any of you know of any good
serial controllers that can do this. I looked at a 8530 and it seems
to max out at about 2MBit with a 16MHz clock. What I mean here is that
the hdlc cct can run that fast but it leaves precious little time for
the bus interface to get the data into the host CPU.

Finally I'm interested in ISA or PCI - but preferably PCI as I'd like
to perform some kind of DMA transfer and I've never liked the ISA way
of doing this.

All ideas greatly received,

Alex.

-- 
Alex Barclay			E-mail: alex@vsys.com
731 N.Weber, Suite 202		Tel:    +1 719 635 8066 x 17
Colorado Springs		Fax:    +1 719 635 1420
CO 80903