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- From: woodley@hpcc01.corp.hp.com (Judy Woodley)
- Date: Wed, 16 Dec 1992 20:27:18 GMT
- Subject: Re: COM3 in Windows 3.0
- Message-ID: <70540008@hpcc01.corp.hp.com>
- Organization: the HP Corporate notes server
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!sdd.hp.com!hpscit.sc.hp.com!hplextra!hpcc05!hpcc01!woodley
- Newsgroups: comp.os.ms-windows.misc
- References: <1992Dec15.145550.3531@nic.csu.net>
- Lines: 19
-
- > COM1 and COM3 share the same interrupt..IRQ4
-
- Actually, while this is the default of MS Windows, your PC may behave
- differently. For example, Hewlett-Packard's PCs use the following table:
-
- COM Port I/O Address IRQ
- 1 3F8 4
- 2 2F8 3
- 3 3E8 10
- 4 2E8 11
-
- We can therefore use the Control Panel (select Ports, select Com3, select
- Settings, select Advanced) and change the I/O port to 3E8 and the IRQ to 10.
- Since COM1 and COM3 don't share I/O addresses or IRQs, both are accessible
- under MS Windows 3.1.
-
- Your PC may have a similar set up.
-
-
-