Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watmath!clyde!mcdchg!illusion!marcus From: marcus@illusion.UUCP Newsgroups: comp.sys.ibm.pc Subject: Using com3 & com4 in an AT Message-ID: <166@illusion.UUCP> Date: Fri, 4-Dec-87 11:29:30 EST Article-I.D.: illusion.166 Posted: Fri Dec 4 11:29:30 1987 Date-Received: Tue, 8-Dec-87 03:43:44 EST Reply-To: marcus@illusion.UUCP (Marcus Hall) Distribution: na Organization: Magic Numbers Software, Bloomingdale, IL Lines: 16 I have an AT clone which is running Xenix 2.1.3. It has com1 and com2 ports installed, but I could sure use one or two more ports. The board that I have allows the ports to be configured only as com1 or com2 and I haven't seen anything for the AT specifically that allows serial ports to be configured as com3 or com4. If I were to install an internal modem or serial board for a PC and configure it as com[34], would there be any conflicts for addresses or interrupt vectors? Perhaps there are no interrupt vectors assigned to these ports? Even if the Xenix driver doesn't support it, I could hack up the current driver or write my own so that is a setback but not an impossible problem. Thanks.. Marcus Hall ..!{ihnp4,mcdchg}!illusion!marcus