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- Path: viking.arc.nasa.gov!lamaster
- From: lamaster@viking.arc.nasa.gov (Hugh LaMaster)
- Newsgroups: comp.os.ms-windows.win95.setup,comp.sys.ibm.pc.hardware.comm,comp.dcom.modems
- Subject: Re: Loss of IO board facilities with Win 95
- Date: 17 Apr 1996 21:29:19 GMT
- Organization: NASA Ames Research Center
- Message-ID: <4l3nrf$nkt@onramp.arc.nasa.gov>
- References: <3171334b.122200990@news.demon.co.uk> <31719CFC.1A04@net-link.net>
- NNTP-Posting-Host: viking.arc.nasa.gov
-
- In article <31719CFC.1A04@net-link.net>,
- "Steven F. Johnson" <steve@net-link.net> writes:
- |> Pinnell wrote:
- |> >
- |> > My P90 was shipped with a second IO board, enabling me to have two
- |> > printer ports and four serials. All worked under Windows for
- |> > Workgroups, including my Acer fax machine, but after installing Win
- |> > 95, only the motherboard connections will work. I'm using a printer
- :
-
- |> Under Windows 3.x, parallel and serial ports are polled, not interrupt
- |> driven. Under Windows 95, though, both parallel and serial ports
- |> _are_ interrupt driven. The ISA bus was not designed to share IRQs
- |> across boards, so the standard configuration of COM1,2,3, and 4 using
- |> IRQs 4, 3, 4, and 3 respectively typically won't work under Windows 95
- |> unless the four ports are all on the same board, and on-board logic
- |> arbitrates among them.
- |>
- |> You may want to try installing the COMM.DRV polled communications driver
- |> for ports 3 and 4, but it you also want to use a modem on one of those
- |> ports, you'll still run into some difficulties.
- |>
- |> My suggestion: configure your system so the mouse is on COM1, IRQ4, your
- |> modem is on COM2, IRQ3, and forget the others. Ditto with LPT2: Just
- |> use LPT1 on IRQ7...
-
- So, what do you do if you are trying to configure a new PnP type
- modem like the "Motorola Lifestyle" on a PnP mboard under Win '95?
- Specifically, Win '95 wants to configure the modem as "COM5", but,
- virtually all the software only recognizes COM1-COM4 (mouse on COM2).
- [Award PnP BIOS ?.??]. Is there way to override the automagic
- setup? If you manually reconfigure it in "settings", it just thinks
- there is *another* modem sitting on the hardware serial port.
-
-
- --
- Hugh LaMaster, M/S 233-18, Email: Please send ASCII documents to:
- NASA Ames Research Center Internet: lamaster@ames.arc.nasa.gov
- Moffett Field, CA 94035-1000 Or: lamaster@george.arc.nasa.gov
- Phone: 415/604-1056 Disclaimer: Unofficial, personal *opinion*.
-