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From: vestal@src.honeywell.com (Steve Vestal)
Newsgroups: comp.lang.ada,comp.realtime
Subject: Preemptive Scheduling & DO-178
Date: 12 Sep 1994 15:45:50 -0500
Organization: Honeywell Technology Center, Honeywell Inc.
Message-ID: <352elu$ho@sluggish.src.honeywell.com>
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Date: 1994-09-12T15:45:50-05:00
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I am interested in the use of preemptive fixed priority (a.k.a. rate
monotonic) scheduling in avionics systems that have been certified per
RTCA/DO-178, particularly to high levels of certification (flight-critical per
178A, categories B or A per 178B).  If anyone can identify or has experience
with a preemptively scheduled system that has been (designed to be) certified
to these levels, or knows of any FAA or JAA policies regardling preemptive
scheduling, I would be most appreciate of hearing about it.

Steve Vestal
Mail: Honeywell Technology Center, 3660 Technology Drive, Minneapolis MN 55418 
Phone: (612) 951-7049       Fax: 7438       Internet: vestal@src.honeywell.com