Date: Tue, 30 Sep 1997 20:44:03 GMT From: Dan Odom <daniel@jimi.danodom.com> To: Randy Berndt <rberndt@nething.com> Cc: freebsd-hardware@freebsd.org Subject: Re: Multiple serial ports Message-ID: <199709302044.UAA03689@jimi.danodom.com> In-Reply-To: <3.0.3.32.19970930150358.00732b2c@nething.com> References: <Pine.BSF.3.91.970930120649.262h@panda.hilink.com.au> <199709300128.BAA02166@jimi.danodom.com> <199709301841.SAA03454@jimi.danodom.com> <3.0.3.32.19970930150358.00732b2c@nething.com>
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Randy Berndt writes: > At 06:41 PM 9/30/97 GMT, you wrote: > >The Boca cards all say "does not support modems," > > Actually, the Boca-4 and Boca-8 do not support modems. The Boca-6 (never > seen one) and the Boca-16 DO support modems. The -16 uses a weird 10-pin > RJ-45 connection (cables available from Boca). I do not use modems on them, > but I have them null modem-ed to a mini-computer that thinks they are > modems, and everything seems to work ok. > > One BIG warning: The higher ports tend to lock up (even when all are at > 9600 baud). I ended up putting in two -16s and just using the bottom 8. I > think (emphasize THINK) the problem is buffer overflows on the upper ports. > I have patched the kernel to set the 16550 trigger to 8 from 14 to allow > more time, but have not yet hooked up the higher ports again. > > As always, your mileage may vary :) > > Randy Berndt <rberndt@nething.com> > ---------------------------------- > AOS/VS, Win95, FreeBSD, WinNT, DOS, Win311: > I'm caught in a twisty little maze of operating systems, all different.
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