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=ham autolearn_force=no version=3.4.4 X-Google-Thread: a07f3367d7,3025dd6d917b499c X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit Received: by 10.216.203.96 with SMTP id e74mr803598weo.1.1350352541512; Mon, 15 Oct 2012 18:55:41 -0700 (PDT) MIME-Version: 1.0 Path: q10ni65138168wif.0!nntp.google.com!feeder3.cambriumusenet.nl!feeder1.cambriumusenet.nl!feed.tweaknews.nl!94.232.116.12.MISMATCH!feed.xsnews.nl!border-2.ams.xsnews.nl!border4.nntp.ams.giganews.com!border2.nntp.ams.giganews.com!border3.nntp.ams.giganews.com!border1.nntp.ams.giganews.com!nntp.giganews.com!news.panservice.it!news.swapon.de!eternal-september.org!feeder.eternal-september.org!mx04.eternal-september.org!.POSTED!not-for-mail From: Simon Clubley Newsgroups: comp.lang.ada Subject: Re: Ada, the best language with the not-so-best tool chain Date: Mon, 8 Oct 2012 20:44:51 +0000 (UTC) Organization: A noiseless patient Spider Message-ID: References: <38af7fb8-b0a4-4a31-87aa-b7b698cc89c3@googlegroups.com> <3ca0ffd0-1764-484b-8fab-17c0d2dd9463@googlegroups.com> <1f645050-cf4c-40bf-a797-9687b69e4a54@googlegroups.com> <18ats2960nsvm$.kfufsnul13aq$.dlg@40tude.net> <5072c9ae$0$6562$9b4e6d93@newsspool4.arcor-online.net> <4keoa6epdxt7.1nnwxy7v7ar90.dlg@40tude.net> <5072dc68$0$6554$9b4e6d93@newsspool4.arcor-online.net> <1f7cmfp1l65w1.1deog8cfxbs0u$.dlg@40tude.net> <5072e37a$0$6556$9b4e6d93@newsspool4.arcor-online.net> <1wzhg6cdjkwjj$.uq66rzr2nlgy.dlg@40tude.net> Injection-Date: Mon, 8 Oct 2012 20:44:51 +0000 (UTC) Injection-Info: mx04.eternal-september.org; posting-host="e298f3c034f630fa7d024371528fc2e1"; logging-data="16554"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18zvtHw4gQ+AMsOuaAGR4SrJ7gNEpI6fF8=" User-Agent: slrn/0.9.8.1 (VMS/Multinet) Cancel-Lock: sha1:/8GvLUPanUHZZpviZeQHe/HxUuQ= Date: 2012-10-08T20:44:51+00:00 List-Id: On 2012-10-08, Dmitry A. Kazakov wrote: > On Mon, 8 Oct 2012 11:29:15 -0700 (PDT), Patrick wrote: > >> Yes but my main point was the lack of GPIO, please comment on this > > From my point of view it looks just useless. We are using modular I/O > systems EtherCAT-, XCP-, ModBus-, CAN-/CANOpen-based. > You are still thinking like a professional engineer doing safety critical work on large systems. :-) To understand what people like me are telling you, you need to start thinking like a hobbyist interested in things like robotics and paying for their experiments out of their own pockets. > It does not make sense to me to have an integrated I/O or some stackable > I/O board (PC104). Too expensive, non-extensible, unmaintainable, unsafe, > never meets any requirements etc. > Speaking as a hobbyist (at least in embedded work), I can tell you I consider the PC104 to be too bulky and yesterday's technology. > BTW, for low-cost digital I/O you could take parallel port or some pins of > RS232, if the board has them. > They are too limited for this for general purpose work. I am using both serial ports (for a AVR programmer) and parallel ports (for a JTAG interface) in this way on my home development PC. However, that's about using what is currently available to avoid having to buy more expensive programmers. When it comes to the board itself, to do this correctly, you need dedicated GPIO pins. Simon. -- Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP Microsoft: Bringing you 1980s technology to a 21st century world