On Mon, 13 Aug 2001, Edenyard wrote:
> Please can one of our resident experts help me with this
> one: someone recently gave me a 56k PCI modem and I thought
> that I'd try it in place of my 33.6k ISA modem with DOS
> Arachne. I plugged it in and booted up and the BIOS reported
> that it had updated its 'ESCD' (whatever that is...) for the
> 'new hardware'. It didn't, however, report an extra COM port,
> which it always did with the old modem (COM3 at 2e8 hex). No
> DOS programme (Arachne, Modem Doctor, IOINFO) could find the
> new modem.
Gerald, many/most PCI modems are "winmodems". They are not going
to work in pure DOS. You must have a proper hardware modem.
> Since I also have Linux on this machine, I decided to try
> that. I read through the PNP 'How-to' document and managed to
> get Linux to tell me what IO address the modem was at. It
> said 6100 hex and even reported what sort of modem it was, so
> it's definitely there.
OK, this looks promising. What other information did you get?
Make and model number would be helpfull, or the PCI
identification numbers. Post this stuff and I will tell you if
it is a hardware modem or not. Also you need the IRQ!
> So I have two questions: how can an IO address be at 6100
> - I thought that PC IO addresses were in the range 000 to 3FF
> hex? Also, how can I persuade my DOS programmes -
> particularly Arachne V1.7r3 - to use this modem?
No, PCI IO addresses are different from the COMPORT addresses,
and the IRQs are also often different (IRQ 9-11 are common).
That is why most PCI modems, even if real hardware modems, will
not work with legacy DOS programs.
> Any help greatly appreciated! Thanks!
Well, my home machine runs Arachne fine with an Actiontec PCI
(hardware) modem. The trick is to forget all about COM ports, and
just tell Arachne that you have a "non-standart" modem, and then
put in the correct IRQ and IOPORT numbers. Mine is something like
IRQ 10 and IOPORT 0xd800.
(Caveat: other things that might help if there are difficulties
are: switch off "PNP Operating System" in the BIOS; and assign a
chosen IRQ to the PCI slot the modem is in, also in the BIOS)
Does the modem work in Linux? Which version of Linux are you
using?
Regards
--
Gregor J Jones mailto:[EMAIL PROTECTED]
Boston MA
