18F1320 ... Strange Memory


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  1. #7
    Join Date
    May 2004
    Location
    NW France
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    Wink Truth slowly raises from earth ...

    Hi, Mel

    What a nice Job .... "La Claaaasse" as we say here !!!

    just one comment: I noticed here memory locations were ERASED to FF instead of Written to expected values ...

    For my tests I programmed all EEPROM to zero .... and I read some "FF" 's

    see attachment for that.

    You're right ... result is the same. In this case not exactly !!! I did a little mistake Testing at the beginning unwritten Offsets as Words ( Declared as bytes ... no, not on the head, please ...).

    So, without this little mistake, I'd never had found this BUG ... my program would simply have locked at 2nd power-up !!!


    My Address is not a secret ...

    xxx

    FRANCE

    Close to DIEPPE or Le Tréport along the Channel, for your next visit to France ( at home coffee is free ...)

    Thanks one more time

    Alain


    Hi, Luciano

    Nice result from you too ... Microchip search engine can be upgraded, I didn't find anything in the knowledge base !!!

    This device is intended to be used on big scale flying models ...

    so, security first !!! ... no 18F1320 reference or soft will be published then ( I saw some, last year on another project ... gasp !!! ).

    I'll do a trail with BOR enabled to the lowest possible voltage to confirm ... as, to this day, std. 4.3v BOR enabled was equal to plane death !!!

    I'll wait for BUGS to be solved ... to use a 18F1320.

    As Mel has written, There's no "common people" way of identifying good and bad parts ... my Picstart didn't allow me to read DEVIDs ... ( restricted area !!! ) .

    Thanks a lot for your help ( in general on this forum ) and here for me.

    Alain
    Attached Files Attached Files
    Last edited by Acetronics2; - 15th May 2010 at 11:38. Reason: Deleted my own address ...
    ************************************************** ***********************
    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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