Full Kinetis Bootloader 1.2.0 package still available?

[mahi]

Hello,

Is the full Kinetis Bootloader 1.2.0 package still available for download anywhere on the NXP website?

When following the Link to MCU Bootloader | NXP you can read "The legacy KBOOT downloads are still available on the MCUBOOT downloads tab."

But there is only "Freescale_Kinetis_Bootloader_1.2.0 for KS22 package" which lacks (at least) the sources for blhost.

I am looking for a "as small as possible" blhost tool for flashing a MKL13 device via UART from an i.MX6. Before starting to strip down the blhost tool from MCUBOOT 2.0, I wanted to have a look at the older version with less functionality.

Best regards

 Martin

[jingpan]

Hi Martin,

If you want to use i.MX6 to flashing KL13, Please don't refer to blhost. This project is base on PC. Please download KBOOT2.0.0 package. The project in NXP_Kinetis_Bootloader_2_0_0\validation\embedded_host use a K65 to flash target MCU.

KL13 has 64k flash maxim. If you feel the memory size is not enough, you can use a simplified bootloader.

https://github.com/yandld/nxp_easy_mcuboot

Regards,

Jing

[mahi]

Hi Jing,

In my opinion, i.MX6 running Linux is closer to a PC than to a Kinetis K65. Compiling blhost (from the 2.0.0 package) for i.MX6 requires only a very simple bitbake recipe, but the resulting executable is too large for my (very special) purpose.

My request for the 1.2.0 package was driven by the hope for a smaller tool due to fewer features/commands compared to 2.0.0.

I don't need another (simplified) bootloader, KL13 already has a bootloader in ROM and I intend to use it (no Flash required).

I simply need a tool as small as possible "feeding" this bootloader with data.

So I will have a look at the sources of the embedded host and build something on my own - I was hoping to avoid this work...

Best regards,

 Martin

[brendanta]

Bump to an old post.

Could you share the bitbake recipe to build blhost please?

[jingpan]

Hi,

There isn't a special blhost for KS22. Please use the one in FSL_Kinetis_Bootloader_1_2_0

Regards,

jing

[mahi]

Hi Jing,

would you please have a look at the MCUBOOT download page --> MCU Bootloader | NXP ?

There is only a 1.2.0 package especially for KS22. I agree, that most probably the blhost tool in there is not a special one. The problem is, that this package only contains the blhost binaries and no sources (validation directory is missing).

Best regards

 Martin

[jingpan]

Hi,

I share the bootloader 1.2.

https://drive.google.com/open?id=1703jJFn8gDGpG2FfB8_Srfmq6zdy0SIv 

Regards,

Jing

[mahi]

Thanks a lot!

I would suggest to put this archive into the MCUBOOT download area instead of the KS22 one.

Best regards

 Martin