'Help on comms and IRQ's please'
I have a digital multimeter and a Picstart programmer that I
want to hook up to a serial comm port.
My mouse is on comm 1, IRQ4
My modem is on Comm 2, IRQ3
So can I connect something to Comm 3 or 4 if they use the same IRQs as
Comm 1 & 2 ?????
Seems to me that they would still have hardware conflicts if they are
trying to use the same interupt line unless the Comm port could be
tri-stated from one another to share the interupt ??? Am I out in
left field here???
So, does the "Comm" really mean anything other than that it's a
communications serial port???
Any help would be greatly appreciated.
> My mouse is on comm 1, IRQ4
> My modem is on Comm 2, IRQ3
> So can I connect something to Comm 3 or 4 if they use the same IRQs as
> Comm 1 & 2 ?????
As far as I'm concerned there's no way you can use the com 3 and 4 on
your setup as above. You get a special PC card however that can share
the IRQ that gives you the ability to have 4 Comm ports. There several
brands available like from National Instruments and a cheaper version
from ADVANTEC Corporation. I havent actually seen something on the net
yet but I suppose it'll be there.
Good luck and shout if you need some more info.
Jattie van der Linde
Lauw Lim Un Tung
Connect your mouse on Com2 IRQ3, and set your modem on Com3 IRQ4.
Your Com1 is free now ... you can connect it to your programmer
(of course you can not program your hardware while you make connection
Lauw Lim Un Tung
phone : 62-31-318895
e-mail : peter.petra.ac.idtung
On Thu, 27 Feb 1997, Ken Dougal wrote:
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