From: acottrell AT ozemail DOT com DOT au (Andrew Cottrell)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Serial port access
Date: Tue, 18 Aug 1998 13:46:13 GMT
Organization: OzEmail Ltd.
Lines: 47
Message-ID: <35da8428.9474476@news.ozemail.com.au>
References: <Pine DOT OSF DOT 3 DOT 91 DOT 980817200530 DOT 18711A-100000 AT mhor> <6rbnqj$gpo$2 AT news-hrz DOT uni-duisburg DOT de>
Reply-To: acottrell AT ozemail DOT com DOT au
NNTP-Posting-Host: slsdn1p25.ozemail.com.au
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Precedence: bulk

Both SVASync and DZComm work under DOS and Windows 95. (I have not
tried Windows 98, but it should work). There are known problems with
some DJGPP code under WFW in relation to clearing interrupt flags
(CLI) and the corresponding set command. 

The main differences are:
	1) SVASYNC supports 1 comm port, DZCOMM supports multiple
comms ports.
	2) SVASYNC is small and is based on another comms library
which was originally designed for Borland C. 
	3) DZCOMM uses Allegro and as such you can easily setup
timers.
	
Another option is BCSERIO, make sure you contact Bill Curie for the
latest version as I have seen mention that there is some "known"
problems with 2.0.

I have a datalogger/displayer that uses DZCOMM and 2 serial ports to
log TX & RX data between two devices. If you want the source code let
me know.

Regards,
Andrew



On Tue, 18 Aug 1998 13:16:44 +0200, michael DOT mauch AT gmx DOT de (Michael
Mauch) wrote:

>On Mon, 17 Aug 1998 20:13:53 +0100, "Andrew N. Bainbridge"
><anb AT dcs DOT st-and DOT ac DOT uk> wrote:
>
>> I really 
>> need something that will work with DOS and Win95 - Win 3.11 would be a 
>> bonus.
>> 
>> I don't need super fast transfer rates, 9600 will probably do.
>
>Have a look at SVAsync (svas011b.zip ?), it works smoothly in Win95 with
>at least 57k6, and of course also in DOS. I don't know about WfW3.11.
>
>Another serial port library is DZComm, but I don't know if it works
>inside Win95.
>
>Regards...
>		Michael