IC12F508 with Internal Oscillator and Software Reset


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  1. #1


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    Default @Bruce

    Hi Bruce, I'm reading reading about WDT and was wondering if you (or anyone else) could explain how you arrived at 2.3s...(if possible using Mr.E's multicalc...as thats what I normally use)...

  2. #2
    Join Date
    May 2004
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    NW France
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    Wink

    Hi, Michael


    just use:

    Code:
    NAP 7
    2.60 Manual, page 116 ... range x = 0 ... 7 and duration is 18 ms * 2^x


    No calculations needed ...


    for calculations ...


    Parameter : 31 WDT Watchdog Timer Time-out Period
    (no prescaler)
    min: 9* ; Typ : 18 ; Max 30 ms @ VDD = 5.0V (Industrial)
    soooo ...

    128 * 18 ms = 2304 ms ... ...

    CQFD !

    BTW ... I do not think those calculators are really useful here ... nor handy !!!
    Last edited by Acetronics2; - 1st October 2009 at 13:47.
    ************************************************** ***********************
    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 " !!!
    *****************************************

  3. #3


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    Lightbulb

    Thanks!...makes sense now...
    nice way to say RTFM...

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