Multi Image build for nrf5340

RE: Multi Image build for nrf5340

Sigurd Hellesvik — Mon, 18 Dec 2023 11:39:10 GMT

You can add MCUboot by doing CONFIG_BOOTLOADER_MCUBOOT to your project.

See my unofficial theory on MCUboot and NSIB over at my git.
Also see official bootloader docs.

[quote user="Surya Gupta"]Is it possible to use MCUBoot as a stage 0 and stage 1 bootloader with current nrf sdk (v2.5.0) implementation?[/quote]

MCUboot cant be stage 0 and stage 1 at the same time. There is also no point of that.
It can be either stage 0 or stage 1.

[quote user="Surya Gupta"] 2) If it is possible, please provide some sample code/instructions on how to implement configuration?[/quote]

See links above.

[quote user="Surya Gupta"] 3) If not, please suggest us what are the possible ways to achieve this? Also please provide some references which will help us understand more about this Configuration.[/quote]

See 2).

RE: Multi Image build for nrf5340

Surya Gupta — Mon, 18 Dec 2023 11:27:43 GMT

Hi Sigurd,

We are not modifying MCUboot right now, but rather trying to use MCUboot as the stage 0 and stage 1 bootloader instead of using NSIB and MCUboot as the stage 0 and stage 1 bootloaders as provided by Nordic.

To explain further, our customer requirements suggest that both stages of the bootloader (stage 0 & stage 1) should be based on MCUboot. Hence we are trying to understand what are the methods available for achieving the same.

[quote userid="130404" url="~/f/nordic-q-a/106741/multi-image-build-for-nrf5340"]

So our Queries are :-

1) Is it possible to use MCUBoot as a stage 0 and stage 1 bootloader with current nrf sdk (v2.5.0) implementation?

2) If it is possible, please provide some sample code/instructions on how to implement configuration?

3) If not, please suggest us what are the possible ways to achieve this? Also please provide some references which will help us understand more about this Configuration.

[/quote]

Regards,

Surya

RE: Multi Image build for nrf5340

Sigurd Hellesvik — Mon, 18 Dec 2023 10:07:27 GMT

Hi,

First, lets check for an XY Problem:
Why do you need to modify MCUboot?

Regards,
Sigurd Hellesvik