From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Brian Drummond Newsgroups: comp.lang.ada Subject: Re: Getting started with bare-board development Date: Sat, 12 Nov 2016 20:59:01 -0000 (UTC) Organization: A noiseless patient Spider Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Sat, 12 Nov 2016 20:59:01 -0000 (UTC) Injection-Info: mx02.eternal-september.org; posting-host="35cb7187eaaca932400196e6bbf5382d"; logging-data="5761"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19M/o0uq64YV8ZBDUjBrMly1MuagvWkQZw=" User-Agent: Pan/0.140 (Chocolate Salty Balls; GIT b8fc14e git.gnome.org/git/pan2) Cancel-Lock: sha1:OTDvRnwCRyAd+0JYJCpbCW8vKp4= Xref: news.eternal-september.org comp.lang.ada:32294 Date: 2016-11-12T20:59:01+00:00 List-Id: On Fri, 11 Nov 2016 17:19:33 -0500, Adam Jensen wrote: > > Also, do ARM processors make sense for safety critical systems? If not, > would it make more sense to target a different platform from the > beginning? Just to address this point : TI make two ARM processor families, the TI Hercules, aimed at safety critical applications. They consist of dual ARMs in lockstep with comparators, (actually one operates 2 cycles behind the other, so that a glitch will affect different cycles on each) so that any difference between CPU behaviours will trap. (What the trap handler does is up to your application, I presume) One's aimed at automotive, the other at industrial, with slight differences in temperature range, on-chip peripherals, etc. There's a low cost Launchpad devboard for them. -- Brian