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If I Had a Hammer

jack.chaney56
jack.chaney56 over 8 years ago

I used this as a clever draw to get more readers.  The actual intent is to start a discussion and get input from people for software.  Most of the discussions I have seen on the site are about inventing hardware solutions to popular problems.  I guess I am getting overloaded with how many ways there are to turn on an LED.  A significant amount of computer work is actually in the realm of information technology,  Too often what is lacking are skilled individuals that bring an array of tools to the task. The expression "If the only tool you have is a hammer, all your problems look like nails" is a problem I deal with in my professional life. I am constantly faced with vendors who provide the one pony circus (a million ways to make a state machine).

 

Embedded programming is a discipline that requires the developer to be expert at OS scheduling, database management, hardware interfacing, design architecture, and structured objects, as well as proper coding style, and best solution language. It is a constant process of sharpening the tool set to get the best solution. I have taken to putting some tools into retirement as well. Archiving example code and hint/help files is done periodically so I don't have to keep my COBOL skills current, but, by archiving properly, it is possible with a bit of effort, to blow the dust off a few brain cells, and get back in step with my Fortran lines starting in column 7. (...how old is this guy?)

 

Getting back to where I started with this, I wanted to put a call out to all you embedded PROGRAMMERS for tips and techniques and tricks learned that can become the foundation for tool boxes.

 

Tips like:

  • Thinking like a computer
  • Faster graphics and ray tracing
  • Integer only formulas
  • Weight loss (or wait loss) compression
  • T...I...M...I...N...G...

 

Again, some of these are done with hardware these days, but not all solutions have bottomless bank accounts. Sometimes a one chip 8-bit piece of hardware needs to run an 8 cylinder diesel fueling operation.

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Top Replies

  • jack.chaney56
    jack.chaney56 over 8 years ago in reply to ntewinkel +4
    ntewinkel , Precisely what I was referring to. Fixed point for calculations saves tons and tons of calculation overhead and saves boatloads of memory. Time for my first contribution to the tools. Fixed…
  • DAB
    DAB over 8 years ago +3
    Hi Jack, I can sympathize. Using high level programming languages hide a lot of detail you need to learn when going into embedded programming. Luckily I learned assembly language programming on an old…
  • rsc
    rsc over 8 years ago +3
    The most important tip I can think of is to document what you do, both hardware and software. When you get to the point you're writing code in several languages on several compilers for different projects…
Parents
  • jack.chaney56
    jack.chaney56 over 8 years ago

    For people doing this as a hobby, I remember a relatively innocent posting* that showed up about 26 years ago today. Happy Birthday Linux

     

    Jack

    * From: torvalds@klaava.Helsinki.FI (Linus Benedict Torvalds)
    Newsgroups: comp.os.minix
    Subject: What would you like to see most in minix?
    Summary: small poll for my new operating system
    Message-ID: <1991Aug25.205708.9541@klaava.Helsinki.FI>
    Date: 25 Aug 91 20:57:08 GMT
    Organization: University of Helsinki

    Hello everybody out there using minix –

    I’m doing a (free) operating system (just a hobby, won’t be big and
    professional like gnu) for 386(486) AT clones. This has been brewing
    since april, and is starting to get ready. I’d like any feedback on
    things people like/dislike in minix, as my OS resembles it somewhat
    (same physical layout of the file-system (due to practical reasons)
    among other things).

    I’ve currently ported bash(1.08) and gcc(1.40), and things seem to work.
    This implies that I’ll get something practical within a few months, and
    I’d like to know what features most people would want. Any suggestions
    are welcome, but I won’t promise I’ll implement them :-)

    Linus (torvalds@kruuna.helsinki.fi)

    PS. Yes – it’s free of any minix code, and it has a multi-threaded fs.
    It is NOT protable (uses 386 task switching etc), and it probably never
    will support anything other than AT-harddisks, as that’s all I have :-(.

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  • jack.chaney56
    jack.chaney56 over 8 years ago

    For people doing this as a hobby, I remember a relatively innocent posting* that showed up about 26 years ago today. Happy Birthday Linux

     

    Jack

    * From: torvalds@klaava.Helsinki.FI (Linus Benedict Torvalds)
    Newsgroups: comp.os.minix
    Subject: What would you like to see most in minix?
    Summary: small poll for my new operating system
    Message-ID: <1991Aug25.205708.9541@klaava.Helsinki.FI>
    Date: 25 Aug 91 20:57:08 GMT
    Organization: University of Helsinki

    Hello everybody out there using minix –

    I’m doing a (free) operating system (just a hobby, won’t be big and
    professional like gnu) for 386(486) AT clones. This has been brewing
    since april, and is starting to get ready. I’d like any feedback on
    things people like/dislike in minix, as my OS resembles it somewhat
    (same physical layout of the file-system (due to practical reasons)
    among other things).

    I’ve currently ported bash(1.08) and gcc(1.40), and things seem to work.
    This implies that I’ll get something practical within a few months, and
    I’d like to know what features most people would want. Any suggestions
    are welcome, but I won’t promise I’ll implement them :-)

    Linus (torvalds@kruuna.helsinki.fi)

    PS. Yes – it’s free of any minix code, and it has a multi-threaded fs.
    It is NOT protable (uses 386 task switching etc), and it probably never
    will support anything other than AT-harddisks, as that’s all I have :-(.

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  • ntewinkel
    ntewinkel over 8 years ago in reply to jack.chaney56

    Wow! How awesome is that eh?

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  • jack.chaney56
    jack.chaney56 over 8 years ago in reply to ntewinkel

    A friend handed me a printed copy of the posting when I got to work after Labor Day that year.  I've been hooked ever since (still have my old Yag CD).

     

    Jack.

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