Surviving 1 second without battery power


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  1. #11
    Join Date
    May 2004
    Location
    NW France
    Posts
    3,653


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    Lightbulb

    Hi, Peu

    NO, you did not understand ...

    1) You enable BODEN, nothing else required ...

    2) AT program start, you first read the BOR bit

    3) If BOR Bit = 0 THEN (and only IF ) you increase the EEPROM content : That means power is back, and did not reach ZERO !!! ( no Pb to write , then ...)

    4) If BOR Bit = 1 power has gone to ZERO ( and BOR bit has been reset ) ... just read the EEPROM content .

    5) you SET BOR bit

    6) you run your "lighting" program ...

    Think simple !!!

    Alain
    Last edited by Acetronics2; - 12th March 2008 at 20:55. Reason: BOR Electrical levels inverted ...
    ************************************************** ***********************
    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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