Kinetis MicrocontrollersのトピックRe: HOW TO USE KBOOT v2

HOW TO USE KBOOT v2

vdavi81_cefla — Tue, 06 Dec 2022 15:03:53 GMT

I'm developing a K22 microcontroller software. I need to have a bootloader, and i saw KBOOT version 2.00. I downloaded a copy on my pc, but I can't understand how to use it.

Somebody, Can give me some tips?

Where I can found a documentations abaut it?

Are there, some kind of example, where it is possible to see I KBOOT works?

Re: HOW TO USE KBOOT v2

Robin_Shen — Wed, 07 Dec 2022 04:50:45 GMT

Hi vdavi81_cefla,

Please select MCU_Boot when build SDK. The documents can be found in ...\SDK_2_12_0_MK22FN512xxx12\docs\mcu-boot

Best Regards,
Robin
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Re: HOW TO USE KBOOT v2

vdavi81_cefla — Wed, 07 Dec 2022 10:12:01 GMT

I have already downloaded KBOOT v2. My question is how to use it? How to create new project to implements a bootloader? And at the end How to include bootloader in a project?

I saw the documentation, but I didn't find an example of bootloader implemented with KBOOT.

Re: HOW TO USE KBOOT v2

vdavi81_cefla — Wed, 07 Dec 2022 16:50:05 GMT

I have another question.

I would like to have a one project for bootloader a one project for an application. At the end I like to merge both .axf file. bootloader.axf + application.axf. How Can I do that operations?

Re: HOW TO USE KBOOT v2

ErichStyger — Wed, 07 Dec 2022 17:46:09 GMT

Hi @vdavi81_cefla

I wrote a tutorial here:

https://mcuoneclipse.com/2018/03/03/flash-resident-usb-hid-bootloader-with-the-nxp-kinetis-k22-microcontroller/

and that one might be of interest too:

https://mcuoneclipse.com/2018/03/05/tutorial-crc32-checksum-with-the-kboot-bootloader/

I hope this helps,

Erich

Re: HOW TO USE KBOOT v2

ErichStyger — Wed, 07 Dec 2022 17:49:44 GMT

The normal approach for this is to create binary or S19 files and then merge them, for example as shown in https://mcuoneclipse.com/2016/02/26/merging-s19-files/

You don't need to merge the files if you want to debug it, see https://mcuoneclipse.com/2020/11/03/debugging-bootloader-and-application-with-one-debug-session/

If you *really* want to merge two applications (again, I don't think you need this), I wrote about this here:

https://mcuoneclipse.com/2018/01/27/converting-a-raw-binary-file-into-an-elf-dwarf-file-for-loading-and-debugging/

I hope this helps,

Erich