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- Xref: sparky comp.os.os2.misc:40828 comp.sys.ibm.pc.hardware:34561
- Path: sparky!uunet!wupost!kuhub.cc.ukans.edu!spssig.spss.com!uchinews!ellis!sip1
- Newsgroups: comp.os.os2.misc,comp.sys.ibm.pc.hardware
- Subject: Re: COM Port Help Please
- Message-ID: <1993Jan1.192525.16457@midway.uchicago.edu>
- From: sip1@ellis.uchicago.edu (Timothy F. Sipples)
- Date: Fri, 1 Jan 1993 19:25:25 GMT
- Reply-To: sip1@midway.uchicago.edu
- Sender: news@uchinews.uchicago.edu (News System)
- Followup-To: comp.os.os2.misc
- References: <1992Dec21.013036.21894@u.washington.edu>
- Organization: Dept. of Econ., Univ. of Chicago
- Lines: 35
-
- The rule for AT bus interrupt assignments is always, "Keep it simple
- if you can." Here goes...
-
- In article <1992Dec21.013036.21894@u.washington.edu> mts@hardy.u.washington.edu (Sean Milligan) writes:
- > Does anybody know why the following setup of my COM ports and Iterrupt settings doesn't work:
- > IRQ Address Remarks
- > COM1: 4 3F8 Currently my mouse
- > COM2: 5 2F8 This is the one I'm having
- > problems with.
- > COM3: 3 3E8 Boca 14.4K Modem
- > CD-ROM 2 DMA Channel 3 Mitsumi CD-ROM
- >My main problem is COM2. Before I had it set to IRQ3, 2F8 and I believe this
- >worked. Currently I only use this port to connect to my HP48SX Calculator but
- >for some reason I can't get it to work. I tried COM1 for the serial cable to
- >calculator connection and it worked.
-
- Keep COM2 on its default IRQ 3. Move COM3 to IRQ 5 (which you can do,
- I believe, because the internal Boca 14.4K modem supports it).
-
- >Then I tried to install my mouse as COM2 and use COM1 to connect to my
- >calculator. But my mouse no longer worked and upon bootup OS/2 said COM3 not
- >installed, Address not available.
- >If anybody has any suggestions they would be greatly appreciated. Should I try
- >a different address for COM2? Possible choices are 3E8, 2F8, or 2E8. I don't
- >want to change my COM3 becuase before PMCOMM never worked and now it does.
-
- See the advice in the OS/2 FAQ List about adding the necessary
- parameters to your COM.SYS and VCOM.SYS lines in OS/2's CONFIG.SYS.
- This will enable COM3 for you.
-
- --
- Timothy F. Sipples | Read the OS/2 FAQ List 2.0h, available from
- sip1@ellis.uchicago.edu | 128.123.35.151, anonymous ftp, in /pub/os2/all/info
- Dept. of Econ., Univ. | /faq, or from LISTSERV@BLEKUL11.BITNET (send "HELP")
- of Chicago, 60637 | [Read the List, THEN post to ONE OS/2 newsgroup.]
-