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  1. 18th December 2006 09:07 AM #1
    chandu13
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    Default equation

    Hi

    How to solve the given equation

    P=10^1.667(ADC output value)-11.33

    Aim using Keil51 evolution version and 89c51 controller.

    Regards

    chandu
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  2. 18th December 2006 09:23 AM #2
    Hero999
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    Your equation isn't very clear.

    Do you mean?
    1. P=10^{1.667}(ADCOutputValue)-11.33
    2. P=10^{1.667(ADCOutputValue)-11.33}
    3. P=10^{1.667(ADCOutputValue)}-11.33

    I do not answer private messages asking for help because no one else can: benefit from advice I may give or correct me if I'm wrong.

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  3. 18th December 2006 09:40 AM #3
    Nigel Goodwin
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    Default

    As with anything like this, you need to simplify and break it into stages. It might also be possible to simplify it a great deal.

    You really need to explain what you're trying to do!.
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  4. 19th December 2006 05:41 AM #4
    chandu13
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    Default equation

    Hi

    Thanks for reply

    Aim using same equation what you are mentioned in the reply.


    Aim using Keil51 evolution version software and 89c51 controller.

    Keil51 is restricted to 2K memory only.

    Please proved tips for solving and programming the equation in keil51.

    Regards
    chandu
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  5. 19th December 2006 08:29 AM #5
    sci-3d
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    You should you SDCC [http://sdcc.sourceforge.net/] which is a free and opensource with no limitation of size of your code.

    I use it with MIDE-51 and Eclipse as IDE, it is also not bad for a free tools:

    To install, see

    http://mcu-programming.blogspot.com/...c-and-for.html

    http://mcu-programming.blogspot.com/...-for-sdcc.html
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  6. 19th December 2006 09:02 AM #6
    Hero999
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    Quote Originally Posted by chandu13
    im using same equation what you are mentioned in the reply.
    Which one? I mentioned three, is it a, b or c?

    I do not answer private messages asking for help because no one else can: benefit from advice I may give or correct me if I'm wrong.

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  7. 19th December 2006 09:34 AM #7
    chandu13
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    Default equation

    iam using b.equation
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  8. 19th December 2006 10:08 AM #8
    sci-3d
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    I think, if you work with log, it will be easier

    log(P+11.33) = 1.667*ADCOutputValue

    which is a linear equation

    y = m*x

    I think, it is depend on your application.
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