Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!hplabs!hpl-opus!hpspdra!ric
From: ric@hpspdra.HP.COM (Ric Peregrino)
Newsgroups: comp.sys.amiga
Subject: Re: Come on PEOPLE...
Message-ID: <13570020@hpspdra.HP.COM>
Date: 14 Feb 90 18:31:26 GMT
References: <1990Feb12.223912.7167@ug.cs.dal.ca>
Organization: HP Stanford Park - Palo Alto, CA
Lines: 14

Concerning the serial port. In my experiences, I found that data overruns
were occuring at higher data rates. Thus I went straight to the hardware
and temporarily disabled interupts. Then I no longer got overruns, but
this stopped all other processes. Good for getting large chunks of data
fast, but not for a continuous link at low baud rates. 

Also, Pregnant Badger Software reports in their .doc that for large MIDI
dumps (31.25kps), they lose one byte about every 4 kbytes. Unclear to me
if they used the kernel or went straight to the hardware.

The Amiga hardware manual reports rates of 100-250 kps possible with 
tight assembly loops.

ric@hpspd