Date: Tue, 1 Apr 2008 17:36:40 -0700 From: "Martin Fouts" <mfouts@danger.com> To: "Matthew Dillon" <dillon@apollo.backplane.com> Cc: Christopher Arnold <chris@arnold.se>, arch@freebsd.org, qpadla@gmail.com, freebsd-arch@freebsd.org Subject: RE: Flash disks and FFS layout heuristics Message-ID: <B95CEC1093787C4DB3655EF330984818051D22@EXCHANGE.danger.com> In-Reply-To: <200804012325.m31NPwM1042551@apollo.backplane.com> References: <20080330231544.A96475@localhost> <200803310135.m2V1ZpiN018354@apollo.backplane.com> <B95CEC1093787C4DB3655EF330984818051D03@EXCHANGE.danger.com> <200803312125.29325.qpadla@gmail.com> <200803311915.m2VJFSoR027593@apollo.backplane.com> <B95CEC1093787C4DB3655EF330984818051D09@EXCHANGE.danger.com> <200803312006.m2VK6Aom028133@apollo.backplane.com> <B95CEC1093787C4DB3655EF330984818051D0A@EXCHANGE.danger.com> <200803312254.m2VMsPqZ029549@apollo.backplane.com> <B95CEC1093787C4DB3655EF330984818051D0D@EXCHANGE.danger.com> <200804011733.m31HXF6e039649@apollo.backplane.com> <B95CEC1093787C4DB3655EF330984818051D17@EXCHANGE.danger.com> <200804012014.m31KEvTJ041049@apollo.backplane.com> <B95CEC1093787C4DB3655EF330984818051D1E@EXCHANGE.danger.com> <200804012325.m31NPwM1042551@apollo.backplane.com>
next in thread | previous in thread | raw e-mail | index | archive | help
=20 > I can't believe it, you actually think you know more=20 > about embedded design then I do! What a laugh. >=20 > I don't know a thing about you, and you clearly don't=20 > know a thing about me. Here's a hint: When you don't > know you shouldn't assume. So what part of "you think you know" is *not* an assumption? > You think these problems are complex? Yes. I do it. That's what makes them fun. > Embedded systems these days are nearly complete > single-chip microcomputers running hacked up but nearly complete > operating systems containing 95% off-the-shelf software,=20 > much of it open source, and much of it provided to the developer on=20 > a shiny platter, with a fully operational SDK and HDK and FPGA logic=20 > around the core cpu. It amazes me that you can assert to be so knowledgeable about embedded systems and then make such a glaringly wrong description of the ones I work on. Our current shipping product has *no* off-the-shelf software, beyond a few small libraries for image encoding, out of several million lines of code. There's no 'fully operational SDK', beyond a gcc crosscompiler that we've debugged ourselves. The SOC has no FPGA. > All in one chip. These days 'embedded' means you are sporting a > completely functional linux operating system in a two=20 > chip solution It's not a single chip or even two chips. It doesn't run linux. Keep guessing wrong, Matt. > with virtually no external parts required beyond those=20 > needed for the connectors. There are a lot more parts than connectors in the BOM. Wrong again. > And it's all now written in C or C++ or=20 > whatever the hell language you want to write it in. Well, "whatever the hell language" gets you off on a technicality there, Matt. > It's crazy easy to do embedded development work these=20 > days. No more difficult then writing software on a full blown PC. There is a class of such development. Pity it's not the class I'm working in. > I'm sorry, but if that is your idea of complex then its roughly > equivalent to my idea of ridiculously easy. No, Matt, it's not my idea of complex. I see that you're more in need of your advice about not assuming than I am.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?B95CEC1093787C4DB3655EF330984818051D22>