they shoot horses


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  1. #1

    Thumbs down they shoot horses

    really up a wall trying to program a 16f877a will not run with any programs

    have one that some else programed works fine only have hex file

    is there a start button cannot get anything to work as simple as blink led

    no lcd no serin nothing
    have checked electrical mclr 1 resistor to +5
    crystal pin 13-14
    power
    ok

  2. #2
    malc-c's Avatar
    malc-c Guest


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    I don't thank anyone will be able to help you based on the limited information in your post. You'll need to state things like:

    1) - what hardware programmer are you using.
    2) - what software you use to send the HEX file to the PIC
    3) - details of your hardware, how are you testing the PIC
    4) - details of your PBP code

    Without this sort of info I think most of the suggestions (if any) will be guesses

  3. #3


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    Arrow more info

    ok will try for more info
    one question that comes up is the define osc 20 does not seem to work

    built a small prototype with a 4mhz crystal and got blinkie to work

    is there a better statement to insur this works or is my syntax bad

    apreicate the help

  4. #4


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    Exclamation added info

    as for as the programmer k149 and it will program the sample chip and it works fine
    hardware is as simple as you can get nothing but power and crystal

    except when i am using it on a factory wired board which works fine with
    the programed chip
    just trying to make changes

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