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[ct-user] CT, Com Ports, IRQ's and headaches

To: <ct-user@contesting.com>
Subject: [ct-user] CT, Com Ports, IRQ's and headaches
From: Wills" <maxsys@netlink.co.nz (Wills)
Date: Sat, 29 Mar 1997 10:55:56 +1200
Hi Alfred

We had similar problems when we went over 2 com ports at ZM2K. The answer
we found was that you need to configure for different IRQ's - ie you can't
share them.

73's

Murray ZL2IQ

----------
> From: Alfred J. Frugoli <ke1fo@contesting.com>
> To: CT-User Reflector <ct-user@ve7tcp.ampr.org>
> Subject: [ct-user] CT, Com Ports, IRQ's and headaches
To: <ct-user@contesting.com>
> Date: Saturday, 29 March 1997 03:24
> 
> I'm trying to get CT set up using 4 com ports (2 are new).  I never had 
> any problems running with just 2, but more computer control stuff euqals 
> more com ports.  Base addresses are standard, and com 1&3 are IRQ 4 (I 
> think) and com 2&4 are IRQ 3 (at any rate, the com ports share irq's).  
> The comtsr programs are set up to show the proper IRQ's and base 
> addresses, but when I try to use the two com ports that share an IRQ, 
> neither device works properly.  Do I need to configure for individual 
> IRQ's?  The software interrupts on the comtsr programs are all different 
> for the 4 com ports.  
> 
> Thoughts? suggestions?  I'm going to be putting together a 486 over the 
> summer, and will start off right with an 8 port board!  Thanks.
> -- 
> Al, KE1FO, ex. KE6BER    mailto:ke1fo@contesting.com or ke6ber@tiac.net
> Check out my web page, http://www.tiac.net/users/ke6ber for summaries 
> from the contest reflector and a growing list of amateur radio links.
> 
> --
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