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
with modem)

_______________________________

        Lauw Lim Un Tung
        Pecindilan 5/14
        Surabaya 60273
          INDONESIA
phone  : 62-31-318895
e-mail : tung@peter.petra.ac.id
_______________________________

On Thu, 27 Feb 1997, Ken Dougal wrote:

> 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.
> Ken Dougal
> slm5g@cc.usu.edu
>