Crystal "calibration" - how to (a simple way)?


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  1. #1
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    Thanks Joe S,

    Today I build a battery charger and tomorrow, what will it be? I just take the opportunity of this circuit to learn a little more about the accuracy my PIC can (or could) have.

    Of course, there is absolutely no need to have a lab's chronograph to charge batteries...

    Merci Alain. What is your measuring point to evaluate your precision? Is it a port as I mentionned in post#3?
    Roger

  2. #2
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    Hi, Roger

    With time, I have built or bought ( thanks to Trent !!! ... LOL ) all the references I need.

    For Frequency ... I Bought ( God bless you, Trent ) a nice Discrete components meter 20 Years ago ... still accurate !!!


    Most of time, I verify clocks accuracy ... letting them run for a week !!! ( DCF clock as a reference ...)

    Seriously : ... after having made a "rough tuning" during an hour or a day ...

    Alain
    Last edited by Acetronics2; - 1st October 2007 at 14:44.
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  3. #3
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    ...rien de tel que la pratique!!!

    Thank you Alain and have a nice day.
    Roger

  4. #4
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    Yes !

    And that includes temp, Humidity and voltage variations along a "significant" period ...

    Amitiés

    Alain
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************

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