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From: john@viper.UUCP
Newsgroups: comp.os.cpm
Subject: Re: Applicard and Super Serial Card at 9600 baud
Message-ID: <597@viper.UUCP>
Date: Fri, 27-Feb-87 14:56:32 EST
Article-I.D.: viper.597
Posted: Fri Feb 27 14:56:32 1987
Date-Received: Sun, 1-Mar-87 15:36:54 EST
References: <4684@brl-adm.ARPA>
Reply-To: john@viper.UUCP (John Stanley)
Organization: DynaSoft Systems
Lines: 22

In article <4684@brl-adm.ARPA> marwood@dmc-crc.arpa (G. J. Marwood) writes:
 >Does anyone have any experience of using the PCPI Applicard and Super Serial
 >card at 9600 baud.  I have tried this and found that a lot of characters are
 >dropped.

Your problem is probably related to whatever driver routines you are using
to receive information from the card(s).  At 9600, there really isn't enough
time to do much with the data once you've got it (mainly due to the slow
6502 processing).  I've managed to transfer information at 19200 baud using
the super-serial card, but only if I do the processing myself in assembly
language and don't try doing anything related to printing on the screen
or writing to any other peripherals.

(you might be able to print on the screen using your own routines, but don't
try it using the normal apple-bios way, you'll loose characters every time).

What language(s) are you using for this?

--- 
John Stanley (john@viper.UUCP)
Software Consultant - DynaSoft Systems
UUCP: ...{amdahl,ihnp4,rutgers}!{meccts,dayton}!viper!john