Proton USB boot loader 2019


+ Reply to Thread
Results 1 to 6 of 6

Thread: Proton USB boot loader 201946 days old

  1. #1
    Prolific Poster See_Mos's Avatar
    Join Date
    Feb 2004
    Posts
    1,289
    Thumbs Up
    Received: 17
    Given: 0
    Total Downloaded
    872.27 MB

    1 Not allowed!

    Default Proton USB boot loader 2019

    Proton HID USB boot loader 2019 developed for 18F14K50 and 18F25K50 but easily modified for other devices.

    Refer to the notes DOC or TXT for more information.
    Attached Files Attached Files
    My RAM is failing

Attention

This valuable resource relies upon the very small amount of revenue generated by displaying online advertisements to our visitors.

The advertisements we display are relevant to this web site and your browsing history

Please consider supporting us by disabling your ad blocker.


Note: Some users have reported issues related to ad-blockers rendering parts of this wesite unusable,
where possible we will rectify the issues to enable you to use this resource with adblocking enabled.

If you can, please report issues in the forum area WebSite / Forum Issues


Thank you for your attention.

  • #2
    Prolific Poster towlerg's Avatar
    Join Date
    Mar 2012
    Posts
    2,234
    Thumbs Up
    Received: 75
    Given: 181
    Total Downloaded
    5.15 GB

    0 Not allowed!

    Default Re: Proton USB boot loader 2019

    Thanks for that, I've been meaning to try a bootloader for a while but laziness got in the way. Now you provided a fully working package I really have no more excuse.

    Apologies in advance if this is answered elsewhere but

    a. What causes the bootloader, rather than the application code, to run?
    b. Do I need a reset switch or any other hardware?
    c. Could you provide a link (or attach) the PC code?

    Thanks in advance
    George.

  • Attention

    This valuable resource relies upon the very small amount of revenue generated by displaying online advertisements to our visitors.

    The advertisements we display are relevant to this web site and your browsing history

    Please consider supporting us by disabling your ad blocker.


    Note: Some users have reported issues related to ad-blockers rendering parts of this wesite unusable,
    where possible we will rectify the issues to enable you to use this resource with adblocking enabled.

    If you can, please report issues in the forum area WebSite / Forum Issues


    Thank you for your attention.

  • #3
    Prolific Poster See_Mos's Avatar
    Join Date
    Feb 2004
    Posts
    1,289
    Thumbs Up
    Received: 17
    Given: 0
    Total Downloaded
    872.27 MB

    0 Not allowed!

    Default Re: Proton USB boot loader 2019

    Hi George,

    A pin is pulled high by a high value resistor, this can be one of the USB pins or any other spare pin. If it is a USB pin, with the USB lead disconnected a high is detected which causes the PIC to jump to the main code start address. With the USB lead plugged in the pin is pulled low enough for the code to jump to the boot loader.

    If using any other pin a 'program' button or some other method is needed to pull the pin low and start the boot loader.

    the PC code is available together with a more detailed explanation of Tim And John's original project here:-

    http://www.protonbasic.co.uk/content...USB-Bootloader
    My RAM is failing

  • Attention

    This valuable resource relies upon the very small amount of revenue generated by displaying online advertisements to our visitors.

    The advertisements we display are relevant to this web site and your browsing history

    Please consider supporting us by disabling your ad blocker.


    Note: Some users have reported issues related to ad-blockers rendering parts of this wesite unusable,
    where possible we will rectify the issues to enable you to use this resource with adblocking enabled.

    If you can, please report issues in the forum area WebSite / Forum Issues


    Thank you for your attention.

  • #4
    Prolific Poster towlerg's Avatar
    Join Date
    Mar 2012
    Posts
    2,234
    Thumbs Up
    Received: 75
    Given: 181
    Total Downloaded
    5.15 GB

    0 Not allowed!

    Default Re: Proton USB boot loader 2019

    Thanks for getting back. I found the article you linked to but get "404 not found" when I try to download from the link at the bottom, "The code, this article etc can be downloaded from HERE"
    George.

  • Attention

    This valuable resource relies upon the very small amount of revenue generated by displaying online advertisements to our visitors.

    The advertisements we display are relevant to this web site and your browsing history

    Please consider supporting us by disabling your ad blocker.


    Note: Some users have reported issues related to ad-blockers rendering parts of this wesite unusable,
    where possible we will rectify the issues to enable you to use this resource with adblocking enabled.

    If you can, please report issues in the forum area WebSite / Forum Issues


    Thank you for your attention.

  • #5
    Senior Member tumbleweed's Avatar
    Join Date
    May 2011
    Posts
    490
    Thumbs Up
    Received: 59
    Given: 0
    Total Downloaded
    408.14 MB

    1 Not allowed!

    Default Re: Proton USB boot loader 2019

    this can be one of the USB pins or any other spare pin
    When you say "one of the USB pins" which pins are you referring to?

    Keep in mind-
    1) you are not allowed to source any voltage on the USB D+/D- pins, especially if the host has not asserted VBUS.
    2) the USB D+/D- signals are 3V3 signals, so NEVER pull them to 5V

  • Attention

    This valuable resource relies upon the very small amount of revenue generated by displaying online advertisements to our visitors.

    The advertisements we display are relevant to this web site and your browsing history

    Please consider supporting us by disabling your ad blocker.


    Note: Some users have reported issues related to ad-blockers rendering parts of this wesite unusable,
    where possible we will rectify the issues to enable you to use this resource with adblocking enabled.

    If you can, please report issues in the forum area WebSite / Forum Issues


    Thank you for your attention.

  • #6
    Member Dompie's Avatar
    Join Date
    Apr 2012
    Posts
    123
    Thumbs Up
    Received: 14
    Given: 12
    Total Downloaded
    5.03 GB

    1 Not allowed!

    Default Re: Proton USB boot loader 2019

    @Towlerg: This one?

    Johan

  • Attention

    This valuable resource relies upon the very small amount of revenue generated by displaying online advertisements to our visitors.

    The advertisements we display are relevant to this web site and your browsing history

    Please consider supporting us by disabling your ad blocker.


    Note: Some users have reported issues related to ad-blockers rendering parts of this wesite unusable,
    where possible we will rectify the issues to enable you to use this resource with adblocking enabled.

    If you can, please report issues in the forum area WebSite / Forum Issues


    Thank you for your attention.

    Thread Information

    Users Browsing this Thread

    There are currently 1 users browsing this thread. (0 members and 1 guests)

       

    Similar Threads

    1. Boot loader woes.
      By moonshadow in forum Absolute Beginners Section
      Replies: 44
      Last Post: 17th June 2019, 13:16
    2. about new UMC boot loader
      By jyb in forum Proton Plus Compiler v3
      Replies: 8
      Last Post: 29th May 2012, 16:16
    3. [SOLVED !] Boot loader question.
      By Sparky1039 in forum Proton Plus Compiler v3
      Replies: 2
      Last Post: 13th July 2009, 19:56
    4. Probs with '452 and boot loader
      By Mike B in forum Mecanique - IDE
      Replies: 2
      Last Post: 3rd September 2006, 18:02
    5. [SOLVED !] Boot loader for 18C858
      By maxim in forum Wish List / Product Feedback
      Replies: 0
      Last Post: 27th March 2005, 05:55

    Members who have read this thread : 39

    Actions :  (Set Date)

    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