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From: davidsen@steinmetz.UUCP
Newsgroups: comp.unix.xenix
Subject: Re: Request for help in adding terminals to XENIX
Message-ID: <1174@steinmetz.steinmetz.UUCP>
Date: Tue, 3-Feb-87 10:03:21 EST
Article-I.D.: steinmet.1174
Posted: Tue Feb  3 10:03:21 1987
Date-Received: Wed, 4-Feb-87 04:28:04 EST
References: <661@imsvax.UUCP> <1320@cadovax.UUCP>
Reply-To: davidsen@kbsvax.UUCP (william E Davidsen)
Organization: General Electric CRD, Schenectady, NY
Lines: 24

In article <1663@cit-vax.Caltech.Edu> li@tybalt.caltech.edu.UUCP (James C. Li) writes:
>>In article <1157@steinmetz.steinmetz.UUCP> davidsen@kbsvax.UUCP (william E Davidsen) writes:
>>>I just wish wish Xenix supported 19.2kb...
>
>It isn't Xenix that doesn't support 19.2kb, it's IBM, and probably all the
>other PC-clones.  The chip can support about 100k, and I have seen it used
>at that rate.

I guess it depends on your idea of "support". The device driver
in Xenix does not have the "B19200" option, not does it map EXTA
or EXTB into 19200. Many DOS programs do this, and I have never
had any trouble running at those speeds. The USART stays within
spec up to 38.4kb at least.

Some other version of UNIX for the PC *do* support these higher
speeds, so I feel that the problem is in the Xenix device
driver. I'm also told that the drivers which come with some 4
and 8 port serial boards will support up to 38.4kb if you don't
try to run all of the ports at that speed at once.
-- 
bill davidsen			sixhub \
      ihnp4!seismo!rochester!steinmetz ->  crdos1!davidsen
				chinet /
ARPA: davidsen%crdos1.uucp@crd.ge.com (or davidsen@crd.ge.com)