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- Newsgroups: comp.unix.xenix.sco
- Path: sparky!uunet!haven.umd.edu!decuac!pa.dec.com!dynamix!david@uu3.psi.com
- From: david@dynamix.com (David L Jarvis)
- Subject: Re: COM ports under XENIX VP/IX
- Organization: SOFTWARE / DYNAMIX
- Message-ID: <9212191010.AA14525@dynamix.com>
- Date: Sat, 19 Dec 92 10:10:12 EST
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- X-To: pberger@buddha.ncc.umn.edu (Peter Berger)
- X-Cc: comp.unix.xenix.sco.usenet (comp.unix.xenix.sco)
- X-In-Reply-To: <1992Dec8.011926.26696@news2.cis.umn.edu>; from "Peter Berger" at Dec 8, 92 1:19 am
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- Lines: 46
-
- > Does anyone have any experience with getting the COM ports (/dev/tty1a,
- > /dev/tty2a) to work under Xenix VP/IX? I'm trying to run a DOS
-
- I've had *some* experience using serial ports under Xenix & VP/ix ...
-
- > data acquistion application (talking to a Solus data acquisition
-
- but not with data acquisition! I've used standard COM ports (tty1a) as
- well as ports on intelligent serial io cards for printing and dial out on a
- modem ...
-
- > Even at slow baud rates (300 baud) there seems to be a handshaking type
- > problem -- I get an initial burst of about 20 or 30 bytes from the
- > datalogger and then the data flow stops. By sending multiple carriage
- > returns from XENIX to the datalogger I can coax it to give me more
- > characters one at a time.
-
- I've never seen this problem before ... I generally use xon/xoff
-
- > Thinking that there was a problem with the DOS half of the datalogger
- > software, I loaded a DOS copy of MIRROR under VP/IX. Mirror behaves
- > identically -- a small burst of characters comes from the datalogger and
- > then stops. Under MIRROR I disabled hardware handshaking and flow control
- > and set the baud rate to 300.
-
- I've used all sorts of different MS-DOG software under VP/ix and never
- had a problem (I know that doesn't help much) ...
-
- > I'm using Xenix 2.3.3 and VP/IX 1.01.01.
-
- All of the above applies to 1.02 ... but I've never heard of those problems
- on 1.01
-
- > Anyone have any experience with using the COM ports under Xenix VP/IX?
- > Thanks for any help.
-
- Not sure this was any help, but there it is ... if you have solved it
- already please post the solution, if not and you would like to follow up on
- it just drop me a note
-
- Best Regards,
-
- #----------------------------------------------------------------------#
- # David L. Jarvis SOFTWARE / #
- # david@dynamix.com / DYNAMIX #
- #----------------------------------------------------------------------#
-