🚀 go-pugleaf

Wally Shangle <wshangle@novagate.com> wrote:

>Tony Ramsden wrote:
>> 
>> I have an  internal modem configured to Comm2 & a serial mouse on
>> Comm1 but I wish to connect another serial device ( Psion link
>> interface ) to the system, at present I'm having to disconnect the
>> modem when I want to use the psion interface but what a bind this is!
>> 
>> I'm running Windows95 on an Intel Endevour Motherboard ( with on board
>> serial ports x2 ).
>> 
>> Any suggestion will be gratefully accepted.
>> 
>> TIA
>> 
>> Tony
>> 
>> Tony Ramsden at home in Leeds UK
>
>There are only 2 interrupts available for the 4 COM ports.  My solution
>is to connect an external modem and any other serial devices to an AB
>switch box.  An internal modem permanently takes the COM2 interrupt and
>the mouse software will cause problems if you try to use COM3. Just
>remember, COM1 and COM3 share interrupts as do COM2 and COM4.  Good luck
>

I had an internal sporster modem running on IRQ5 and COM3 on Windows
3.1 for several months. I just went to Windows 95 and decided to use
the PNP feature of the modem, so I removed the jumpers and let Windows
95 assign the modem to IRQ3, COM2. I don't know if I could have forced
it to IRQ5, COM3 or not. I was also using the mouse on IRQ4, COM1. I
found (at least on Windows 3.1) that COM1 and COM3 could be used
without a problem as long as each had its own IRQ.
		Chet