I can not figure out an LCD issue


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  1. #1
    Join Date
    May 2009
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    Montreal, QC, Canada
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    Ok so here is a positive update...

    I had removed my resonator last night to rule it out and got the same issue with the chip's internal oscilator. Today I just put back the resonator and set _XT_OSC again and now it is working fine at 4 MHz.

    Furthermore...! if I remove the LCD_Anypin, it is now still working with the standard version.

    So please correct me if I am wrong but I am working with a breadboard and I suspect when I had the resonator at first, there was a bad contact with one of its pin!

    Thanks to all for your responses, it kept me going.

    Mike

  2. #2
    Join Date
    Nov 2003
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    Wellton, U.S.A.
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    Yup
    A bad connection will make all kinds of strange things happen.
    Dave
    Always wear safety glasses while programming.

  3. #3
    malc-c's Avatar
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    Mike,

    Not sure if I'm correct, but I seem to remember reading that solder less breadboards can cause issues as they can have a high capacitance. Maybe this was part of the problem causing the timing issue.

    Glad to hear you have this part resolved and best of luck with the rest of your project

  4. #4
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    Alain,
    What did you mean by this?

    Quote:
    may be the missing LCD Settling time @beginning of the program ???
    Hi, I just mean place a pause 500 to 700 ms before sending the very first command to the LCD.
    just to let it be ready for receiving infos ...

    Moreover

    DEFINE LCD_COMMANDUS 2000
    DEFINE LCD_DATAUS 50

    are the correct value for LCDs

    in case of using OLEDS ... add 50% to both !!!

    Alain
    Last edited by Acetronics2; - 11th March 2010 at 13:56.
    ************************************************** ***********************
    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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