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000437_news@watsun.cc.columbia.edu _Tue Apr 6 22:54:57 1999.msg
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From: jrd@cc.usu.edu (Joe Doupnik)
Subject: Re: MSK in W95
Message-ID: <h2xt9Dez2W6W@cc.usu.edu>
Date: 6 Apr 99 20:29:49 MDT
Organization: Utah State University
To: kermit.misc@watsun.cc.columbia.edu
In article <370A6667.1501DC84@boeing.com>, David Hauck <david.p.hauck@boeing.com> writes:
> I am having some difficulty using MSK in the Win95 and WinNTW
> environments. We are using MSK version 3.10 to communicate with
> computer controlled milling machines. The machine controls are running
> kermit server as a background process. We use a W95 application to pull
> a file out of a DataBase to a temporary file on the workstation, then
> initiate Kermit from a batch file using the temporary file name.
> Sometimes the transfer works ok, other times it just seems to hang with
> the first packet, and other times there are many retries before the
> transfer completes. When Kermit is called from the W95 application
> several messages appear in the DOS window "?This port will be operated
> through the Bios as BIOS1" and "Unimplemented speed" when 19200 is
> selected as the baud rate. When I change the port settings from BIOS1
> to COM1 the file transfers every time. Is there a way to override the
> BIOS1 setting from a batch file? Would K95 be a better choice to do file
> transfers in a W95 environment?
----------
What is happening is MSK's detection of serial port hardware is
failing because either Windows proclaims ownership or Windows introduces
long enough time delays between Kermit machine instructions that things
seem to fail. When the test fails Kermit retreats to using the Bios, and
that is good only for 300 bps modems and the like.
One suggestion is to ensure Windows has no knowledge of the serial
port. That includes not using any "Winmodem" software. Another is to
SET PORT COM1, and then do it again, more or less as you did by hand.
The first time to probe, and the second to probe again if Windows has
backed away.
Kermit95 is a Windows only program, and it communicates to the
serial port though the drivers of Windows. Thus it is not in competition
with Windows for access.
Joe D.