Message-Id: <s46ac88a.048@calderauk.com>
Date: Thu, 13 Nov 1997 09:29:18 +0000
From: Matthias Paul <MPaul AT calderauk DOT com>
To: opendos AT delorie DOT com, paul-ma AT reze-1 DOT rz DOT rwth-aachen DOT de
Subject: Re: multitasking opendos.
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On 97/11/13 Sam asked:

>I tryed to have my taskmgr.ini file so that com4 with my modem
>was com4=0 then I tryed com4=auto and just about every other number I
>could think of.

>I can't get the comm program to keep running and update the screen etc
>while in the background.
A serial connection in the background is officially unsupported, as some
of the documents stated. However, I have been successful to do this even without FIFOed ports, on slow machines (386sx18) and medium data rate
(9600Bd). I even ran multiple serial connections in the background 
simultanously.

So it also appears to be a matter of the underlaying hardware (Chipset), especially the design of the COM ports, and the PIC, and a matter of the configuration:

Please try to fiddle with TASKMGR.INI:

[Slice]
Foreground=5
TickRate=1

[COMx]
Timeout=0 or 65535

[Shell]
Idle=False/True

Matthias


------------------------------------------------------------
Matthias Paul
eMail: <Matthias DOT Paul AT post DOT rwth-aachen DOT de>
Web: http://www.rhrz.uni-bonn.de/~uzs180/mpdokeng.html