Bootloader For 18F4520


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  1. #1
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    I have these if you are interested.

  2. #2
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    Quote Originally Posted by rmteo View Post
    I have these if you are interested.
    Cheers mate

    i am interested as Henrik said its the loader hex files that i can't update

    Regards
    Isaac

  3. #3
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    Isaac, I zipped the entire folder (all of the HEX files) and it is 113Kb. We just need to figure out how to get it to you.

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    Isaac, e-mail sent.

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    Default Bootloader For 18F4520

    Quote Originally Posted by rmteo View Post
    Isaac, e-mail sent.
    you r great man

    Isaac

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    Anyone have any idea what needs to be done to modify either of the included files to run at 40 MHz instead of 4 or 20? I looked over both hex files and there are only a few lines difference between them, but I have no idea what I'm actually looking at.

    David

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    Quote Originally Posted by Luckyborg View Post
    Anyone have any idea what needs to be done to modify either of the included files to run at 40 MHz instead of 4 or 20? I looked over both hex files and there are only a few lines difference between them, but I have no idea what I'm actually looking at.

    David
    MCS has not provided any source code (that I am aware of) for their bootloader, so I think it would be pretty hard to modify it to run at double the speed. If you don't mind it not working directly through the MCS interface, then you could modify the assembly source code given by the Tiny Pic Bootloader, located here: http://www.etc.ugal.ro/cchiculita/so...bootloader.htm

    And run it beside your MCS.

    .... But Maybe,
    To still use MCS's bootloader hex, you could think about switching PLL settings on the fly in your code. See: http://www.picbasic.co.uk/forum/showthread.php?t=4093
    Maybe you could set the low power interrupt to change it back to 20 mhz when it powers down? Kind of backwards, but might work.

    Walter

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