Newsgroups: comp.windows.ms
Path: utzoo!utgpu!cunews!bcars8!bnrgate!bigsur!bcars53!mussar
From: mussar@bcars53.uucp (G. Mussar)
Subject: Re: Windows 3.0 and 16550 UART not compatible?
Message-ID: <1990Aug14.203320.5962@bigsur.uucp>
Sender: news@bigsur.uucp (Usenet)
Organization: Bell-Northern Research, Ottawa, Canada
References: <3605@ursa-major.SPDCC.COM>
Date: Tue, 14 Aug 90 20:33:20 GMT

I've tried the 16550 in 386 enh. mode and I am sad to say that it is true.
Win3 virtualizes access to the comm hardware and it only virtualizes the
interface for a 16450, so... apps under Win3 cannot play with the FIFO bits
of the 16550. I also tried turning the FIFO on before invoking Win3. This
caused Win3 to crash or not recognize the serial chip at all. Adding this
support to the comm driver would be fairly trivial, however, you need the
SDK, DDK and MSC (total about $1000-1500). Sigh.
--
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Gary Mussar  |Bitnet:  mussar@bnr.ca                  |  Phone: (613) 763-4937
BNR Ltd.     |  UUCP:  ..uunet!bnrgate!bcars53!mussar |  FAX:   (613) 763-2626