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Article #12946Re: Talking to COM1
From: Bob Gonder
Date: Sat, 08 Nov 2003 06:24
Date: Sat, 08 Nov 2003 06:24
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Nick Gessler wrote: >I have been writing code to talk to COM1 successfully in W98. >However, the code runs 10X SLOWER on the new machines where I teach. >The code I'm using is in the first few blocks on my website at: >http://www.sscnet.ucla.edu/geog/gessler/borland/ezio.txt Is there some reason you are using TransmitCommChar instead of WriteFile? You should be able to remove all of those Sleep commands, and reduce the writes to a single call. If it's a timing problem, maybe you need to use the RTS/CTS or DTR/DSR signals.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10cc67,4deaf4c542e3da12 X-Google-Attributes: gid10cc67,public X-Google-ArrivalTime: 2003-11-07 22:45:41 PST From: Bob Gonder <notbg@notmindspring.invalid> Newsgroups: borland.public.cppbuilder.nativeapi Subject: Re: Talking to COM1 Date: Fri, 07 Nov 2003 22:24:19 -0800 Organization: MindSpring Enterprises, Inc. Reply-To: notbg@notmindspring.invalid Message-ID: <g62pqv0cgmacqpkeri10mng1gho7sr3v6i@4ax.com> References: <3fac73e3$2@newsgroups.borland.com> X-Newsreader: Forte Agent 1.93/32.576 English (American) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit NNTP-Posting-Host: 216.244.6.43 X-Trace: newsgroups.borland.com 1068272659 216.244.6.43 (7 Nov 2003 22:24:19 -0700) Lines: 14 Path: arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!fu-berlin.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail