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sudhan j
sudhan j
Associate
March 10, 2017
Question

How to run custom bootloader...?

  • March 10, 2017
  • 2 replies
  • 789 views
Posted on March 10, 2017 at 10:43

Hi ,

I'm writing one custom  bootloader which sits on top of actual serial bootloader . when I pull boot0 to low my custom booloader should run instead of running main application. Please give me some suggestions for solving this.

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    2 replies

    Tesla DeLorean
    Tesla DeLorean
    Guru
    March 10, 2017
    Posted on March 10, 2017 at 12:56

    This is a topic covered dozens of times, perhaps the answers would be salient for you as well. Review. 

    See IAP examples.

    Tips, Buy me a coffee, or three.. PayPal Venmo (See Profile) Up vote any posts that you find helpful, it shows what's working..
    Khouloud GARSI
    Khouloud GARSI
    ST Employee
    March 10, 2017
    Posted on March 10, 2017 at 14:56

    Hi

    jogineni.madhu_babu

    ‌,

    There is an application note

    http://www.st.com/content/ccc/resource/technical/document/application_note/group0/a7/3c/23/3b/05/2d/45/73/DM00281415/files/DM002814pdf/jcr:content/translations/en.DM002814pdf

    : Programming an external Flash memory using the UART bootloader built-in STM32 microcontrollers.

    This application note is provided with an example firmware 'X-CUBE-EXTBOOT' showing how to program an external Quad-SPI flash memory using a developed user boot-code based on the internal UART bootloader protocol.

    The firmware '

    http://www.st.com/en/embedded-software/x-cube-extboot.html

    ' could be downloaded from ST website. You may have a look at it. I think it will help you to develop your custom bootloader.

    Khouloud.

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