Installation sequence


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  1. #1
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    Something else is acting weird. The MCLR pin seems to be held by the programmer for some reason. I have to unplug the MCLR wire to the programmer in order to be able to use my RESET button.

    It works properly for an 16F877, but not for an 18F4550.

    Robert
    My Creality Ender 3 S1 Plus is a giant paperweight that can't even be used as a boat anchor, cause I'd be fined for polluting our waterways with electronic devices.

    Not as dumb as yesterday, but stupider than tomorrow!

  2. #2
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    D'uh, nevermind on the acceleration thingy. I had to add DEFINE OSC 20.

    I thought CONFIG PLLDIV = 5 in the default configuration bits set it at 20MHz, apparently not.

    < Divide by 5 (20MHz input) >

    Robert
    My Creality Ender 3 S1 Plus is a giant paperweight that can't even be used as a boat anchor, cause I'd be fined for polluting our waterways with electronic devices.

    Not as dumb as yesterday, but stupider than tomorrow!

  3. #3
    bioeng-mostafa's Avatar
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    Default 18f4550

    Hello every one
    i want help of you to send to me or help me to find the two files
    1-18f4550.inc
    2-18f4550.bas
    thank you

  4. #4
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    Hi Robert,

    CONFIG PLLDIV = 5 is a "config word" option. This sets the PLL prescaler to
    divide the 20MHz primary osc input by 5. This is required when using a 20MHz
    primary osc because the input to the 96MHz PLL must always be 4MHz.

    DEFINE OSC 20 is different. This is used internally by PBP to adjust timing of
    PBP library routines to the 20MHz primary oscillator.

    bioeng-mostafa,

    If you don't have the 18F4550 device header files, then you need to update
    to the latest version of PBP. Version 2.46 introduced support for the 18F4550
    series.

    Just having someone email you device header files does not guarantee you'll
    be able to use the new device. There are more to some PBP updates than
    additional device specific header files.
    Regards,

    -Bruce
    tech at rentron.com
    http://www.rentron.com

  5. #5
    bioeng-mostafa's Avatar
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    hello
    plase any one have PBP Version 2.46 introduced support for the 18F4550
    send it to me or tell me how i can get it

  6. #6
    bioeng-mostafa's Avatar
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    Default help for pic18f4550

    hello
    plase any one have PBP Version 2.46 introduced support for the 18F4550
    send it to me or tell me how i can get it
    my mail is removed
    thank you

  7. #7
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    bioeng-mostafa

    Please don't ask for people to make and send you Pirate copies, get your own legally like the rest of us have had to.

    If you need an upgrade, go back to your original supplier or MeLabs directly.

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