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Date:      Sat, 24 Feb 1996 23:00:25 +1030 (CST)
From:      Michael Smith <msmith@atrad.adelaide.edu.au>
To:        bde@zeta.org.au (Bruce Evans)
Cc:        msmith@atrad.adelaide.edu.au, terry@lambert.org, hackers@FreeBSD.org, petzi@zit.th-darmstadt.de
Subject:   Re: 230.400 bps on serial port
Message-ID:  <199602241230.XAA26948@genesis.atrad.adelaide.edu.au>
In-Reply-To: <199602240945.UAA29074@godzilla.zeta.org.au> from "Bruce Evans" at Feb 24, 96 08:45:52 pm

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Bruce Evans stands accused of saying:
> 
> >You get 230,400 by doubling your crystal (~3.6) and dividing for 115,200.
> >Quatech do a dual port card (the DS-100) with an 18MHz (10x) crystal and
> >a jumper-selectable divider (/1, /2, /5 or /10).
> 
> Who sells these?

Quatech 8)  We buy them from Interworld; if you can't track them down, I
can give you more details.
(Note that we've had a really bad run with these cards in fast machines; 
there's a trace to cut that helps in some systems, but others still lose.
The symptoms seem to imply a timing problem 8( )

> >> My personal opinion is that the Intel parts are utter crap.
> 
> >Hear Hear!
> 
> Do you prefer NS parts? :-)

Is this a loaded question?  Bus overhead or not, I'd prefer to use ESCC's.

> >All of the cheap MIDI interfaces are 6850 emulations.  Wonder why?
> 
> Cheaper crap.

One possibility.  The other is that most other MIDI interfaces (keyboards,
Atari's) are 6850's as well.  I sniff a crummier motive 8)

> Bruce

-- 
]] Mike Smith, Software Engineer        msmith@atrad.adelaide.edu.au    [[
]] Genesis Software                     genesis@atrad.adelaide.edu.au   [[
]] High-speed data acquisition and      (GSM mobile) 0411-222-496       [[
]] realtime instrument control          (ph/fax)  +61-8-267-3039        [[
]] Collector of old Unix hardware.      "Where are your PEZ?" The Tick  [[



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