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=-0.4 required=5.0 tests=AC_FROM_MANY_DOTS,BAYES_00 autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1143c4,7d107e452bdd8496 X-Google-Attributes: gid1143c4,public X-Google-Thread: 103376,1db77fbb2768946e,start X-Google-Attributes: gid103376,public X-Google-Thread: 115aec,7d107e452bdd8496 X-Google-Attributes: gid115aec,public X-Google-ArrivalTime: 2001-10-01 08:15:24 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!newsfeeds.belnet.be!news.belnet.be!psinet-eu-nl!psiuk-p4!uknet!psiuk-n!news.pace.co.uk!nh.pace.co.uk!not-for-mail From: "Marin David Condic" Newsgroups: linux.dev.kernel,comp.realtime,comp.lang.ada Subject: Re: Is Linux right for Embedded? Date: Mon, 1 Oct 2001 11:02:45 -0400 Organization: Posted on a server owned by Pace Micro Technology plc Message-ID: <9pa0in$8bb$1@nh.pace.co.uk> References: <3BB69F21.B5AA7451@intercom.com> <9p84tm$1ovg$1@news.cybercity.dk> NNTP-Posting-Host: dhcp-200-133.miami.pace.co.uk X-Trace: nh.pace.co.uk 1001948567 8555 136.170.200.133 (1 Oct 2001 15:02:47 GMT) X-Complaints-To: newsmaster@news.cam.pace.co.uk NNTP-Posting-Date: 1 Oct 2001 15:02:47 GMT X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4522.1200 X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 Xref: archiver1.google.com linux.dev.kernel:4034 comp.realtime:3906 comp.lang.ada:13583 Date: 2001-10-01T15:02:47+00:00 List-Id: "Mikkel Elmholdt" wrote in message news:9p84tm$1ovg$1@news.cybercity.dk... > "David B. Littell" wrote in message > news:3BB69F21.B5AA7451@intercom.com... > > Marc Moriati wrote: > > > > > > I come from the M$ world. I make my living as a programmer and as such I > > > don't have to tell you how aggravating it gets some times. > > > Anyway, to make a long story short, I have a project in mind that needs > a > > > rock solid OS. It can't crash or freeze like windblows does cause it's > > > aircraft instrumentation. > > [deletia] > > > > I'm not intending to disparage your skills as a programmer, but if > > you're planning to write an avionics application in C running under > > Linux I want to know which aircraft this is so I can take a bus. > > > > In my opinion, either is a horrible choice for anything even approaching > > a safety-critical application. > > That may be so, but then you really ought to tell the guy what (in your > opinion) would be more appropriate. Opinions about what *not* to use are > somewhat useless. Apart from that, why would the C/Linux combo be a horrible > choice? If you're an Ada freak, then I can understand the C resentment, but > what's the matter with Linux? > > Mikkel > > > As an "Ada Freak" in good standing :-) let me say this: I've used Ada to build jet and rocket engine controls with no COTS OS (bare machine - our own "executive") where failure was not an option. Compared to other languages we used, we got a doubling of productivity and a four-fold reduction in errors. We considered it a major step forward in reliability & could see no reason to go elsewhere. I've not used it, but I believe RTEMS was a suitable OS for military missile technology and was written in Ada. I believe it has been used in mission critical projects, so it has a track record. Its definitely worth looking into for a serious avionics project. See: http://www.adapower.org/ if you want more info. MDC -- Marin David Condic Senior Software Engineer Pace Micro Technology Americas www.pacemicro.com Enabling the digital revolution e-Mail: marin.condic@pacemicro.com Web: http://www.mcondic.com/