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From: Tom Lucas on 7 Sep 2006 04:56 "Didi" <dp(a)tgi-sci.com> wrote in message news:1157605693.406994.62090(a)m79g2000cwm.googlegroups.com... <snip> <snip feature list> my gamma spectrometry code (which is probably about 1/3 of all that), I presume this monitors the exhaust emissions? Which gasses does it measure? I've been starting to research spectrometry myself recently but it is pretty involved and if the trick has been done already then I would be interested to hear more about it, if possible.
From: Eric on 7 Sep 2006 08:10 Joerg wrote: > I'd never buy a car with dozens of controllers. It's getting hard to buy a car now that has less than a dozen controllers, if you consider all of the electronic gizmos (power mirrors, power steering, power windows, air bags, anti-lock brakes, cruise control, fuel injection, electronic ignition, emissions control, entertainment systems, ...). The trend is still moving upward with no end in sight. That's why a lot of controller makers have recently introduced CAN support, and extended termperature range devices. Eric
From: John F on 7 Sep 2006 09:24 Yuriy K. wrote: > John F wrote: > >>> Necessity to use assembler usually points to the inadequate >>> processor selection. >> >> You can't mean what you are saying here. > > Yes, I can and I do. Assembler is needed in a very few, very special > cases. No. It enables you to do a lot of things on hardware you would have tossed and bought something three times more expensive. >> I even write ASM on high >> speed DSPs to get the best out of the material. > > DSP is one of these special cases. But not the only one. > And even for DSP assembler should not take a big percentage of the > code. What do you mean? By LOC? By development time? By execution time? >> If you write an >> interrupt-routine in C it says that you don't care about timing at >> all. That's it. > > I write all my interrupt routines in C. It means the proper > processor > selection and good task division between interrupt and And? :-) I have to disagree. Assembler is a very important instrument. If you aren't able to use it you shouldn't do embedded systems IMHO. >> It shows your ignorance to hard realtime constraints. >> Compiler- and optimisation-independent timing is _very_ important. > > That's what timers, compare/capture units and other good hardware > stuff is used for. Not at all. You might still introduce nasty glitches in mixed signal-designs, phase noise in digital modulation systems if you don't equal out conditional branches... >>>>> A lot of people have better food without ever heard such >>>>> meaningless words as 2n3904, etc. :-P >>>> So, you think a 2N3904 is meaningless? Interesting. Open some >>>> gadgets >>>> and look inside. My designs that contain a lot of such discretes >>>> generate comfortable profit margins for my clients. >>> :) These people never heard word transistor either. >> >> That's not true. I always give them a detailed introduction to my >> designs. > > There are some people outside of embedded hardware design engineers > circle, you know. I know. But up to now every manager was fascinated about how easy/complicated a "complex/simple" task can be. -- Johannes You can have it: Quick, Accurate, Inexpensive. Pick two.
From: John F on 7 Sep 2006 09:34 CBFalconer wrote: > and it isn't even a GUI interface!! Besides I totally agree with you I have a question: Is a GUI Interface something you can do with a USB Bus or an LCD Display? Maybe we can set up a LAN Network and discuss it in some chat room there ;-) If anyone out there has more of this dublications I'd be glad to read them :-) -- Johannes You can have it: Quick, Accurate, Inexpensive. Pick two.
From: Joerg on 7 Sep 2006 13:19
Hello Yuriy, > >>> Very good example. I vote for today's software over any 10-years old. >>> And definitely over any 25-years old software... >> >> Sometimes, older stuffs are better. > > For example? > OrCad SDT-III 3.22 Filter Design (Mildenberger, unfortunately not in English) MS-Works DOS-Word and lots more. -- Regards, Joerg http://www.analogconsultants.com |