Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!psuvax1!psuvm!ims103
From: IMS103@psuvm.psu.edu (Ian Matthew Smith)
Newsgroups: comp.sys.amiga.audio
Subject: Re: MED 3.00 Problems
Message-ID: <91080.150212IMS103@psuvm.psu.edu>
Date: 21 Mar 91 20:02:12 GMT
References: <910321.000737.CST.C503719@UMCVMB.MISSOURI.EDU>
Organization: Penn State University
Lines: 25

In article <910321.000737.CST.C503719@UMCVMB.MISSOURI.EDU>,
            C503719@UMCVMB.MISSOURI.EDU (Baird McIntosh) says:
>
>I believe this is because MED 3.00 uses the CIAB timer instead of CIAA.
>CIAA is for *system use only*, but some programs used it anyway in the
>recent past (MED, Sonix, ...).  Anyway, CIAA has a higher priority than
>the serial.device which, in turn, has a higher priority than CIAB.
>
>I'm sure someone else will step in and give you a more technically correct
>explanation, but basically the 'problem' is:
>
>   In making bids for processor attention, the serial.device gets the
>   first grabs over the CIAB.
>
>This doesn't solve your problem, and I fairly butchered the explanation.
>God, I feel awful.  :-)

   Hmmm, I take it you mean that the CIAB gets first grabs over
the serial.device, since my term program is teh one loosing chacarters.
well, I upped the priority of both my terminal program and the
serial.device interupt.  I still loose characters.  This is annoying.
Any hardware people out there want to add a buffer to the serial port
as a project?  :-)  That should solve the problem I would think.

 - Ian Smith <<ims103@psuvm.psu.edu>>