Mecanique's internal bootloader OSC


Closed Thread
Results 1 to 37 of 37

Hybrid View

  1. #1
    Join Date
    Feb 2006
    Location
    Gilroy, CA
    Posts
    1,530


    Did you find this post helpful? Yes | No

    Default Re: Mecanique's internal bootloader OSC

    I had a PIC18F4620 laying around, so I tried the code here. The Tiny Bootloader with internal osc seems to work fine here. I don't get an overwrite of my FF30 line though. Is your code very large, or is it writing to locations of the code space?

    Also, this may be dumb, but Tiny bootloader will automatically see your chip the first time, without you having to reset the device. After you have used it to load your chip with your code the first time, you will have to reset power within one second of pressing the write button.

  2. #2
    Join Date
    Feb 2011
    Posts
    60


    Did you find this post helpful? Yes | No

    Smile Re: Mecanique's internal bootloader OSC

    Scalerobotics, I am eternally grateful.

    I spent the last few hours compiling many changes to tinybld 18F4620.asm (configuration fuses, boot space, hex files, etc.). The new bytes in FF30 were just the first words of my program relocated to make space for the boot call.

    I Just now discovered what you wrote above... reset not initially needed but then it is after the first program loaded. Your Tiny hack is working perfectly.

    It is good to have open source boots for hungry people.

    THANK YOU!

    Doug

Members who have read this thread : 0

You do not have permission to view the list of names.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts