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From: grege@gold.GVG.TEK.COM (Greg Ebert)
Newsgroups: comp.dcom.modems
Subject: Re: Setting and reseting DTR through the COM port
Keywords: OOOOOPSSS !!
Message-ID: <1239@gold.GVG.TEK.COM>
Date: 6 Aug 90 21:09:07 GMT
References: <10038@hubcap.clemson.edu> <1238@gold.GVG.TEK.COM>
Organization: Grass Valley Group, Grass Valley, CA
Lines: 9

In article <1238@gold.GVG.TEK.COM> grege@gold.GVG.TEK.COM (Greg Ebert) writes:
>
>Your serial port is on either 2F0-2F8, or 3F0-3F8. Use DEBUG to find out. 
>Bit 0 of 2F4 (or 3F4) controls the state of DTR. Writing a '0' will put out
>-12v on DTR; writing a '1' will put out +12v. Have fun.
>
>
The addresses should be "2F8-2FF", "3F8-3FF", and "2FC (or 3FC)". Sorry about
the parity error!