ncs1.6.0 ota problem b0 or (immutable MCUboot)

RE: ncs1.6.0 ota problem b0 or (immutable MCUboot)

Einar Thorsrud — Tue, 17 Aug 2021 12:51:31 GMT

For OTA updates you would have to implement something yourself as the Immutable bootloader does not support SMP updates. If you need that, it makes sense to use MCUBoot as the second stage bootloader (or only bootloader if you do not need secure boot). See Bootloaders and Device Firmware Updates for an overview.

RE: ncs1.6.0 ota problem b0 or (immutable MCUboot)

Август — Wed, 11 Aug 2021 11:16:21 GMT

Thank you

I will try to do this. How to enter dfu mode?

RE: ncs1.6.0 ota problem b0 or (immutable MCUboot)

Einar Thorsrud — Wed, 11 Aug 2021 09:24:10 GMT

If you want to do this, then you can refer to the nRF Desktop projects that use B0 only to see how that is done. You need to adjust your prj.conf as well as your main.c. It is also covered briefly in this tutorial.

Specifically, for B0 you need the following configuration (adapt key path):

CONFIG_SECURE_BOOT=y
CONFIG_BUILD_S1_VARIANT=y
CONFIG_FW_INFO=y
CONFIG_FW_INFO_FIRMWARE_VERSION=1
CONFIG_SB_SIGNING_KEY_FILE="path/to/key.pem"

However, you would also need to remove the mcumgr related code and add something similar to what is in nrf\applications\nrf_desktop\src\modules\dfu.c (which is added to the nRF Desktop projects by the Kconfig CONFIG_DESKTOP_CONFIG_CHANNEL_DFU_ENABLE configuration to handle the DFU process.

RE: ncs1.6.0 ota problem b0 or (immutable MCUboot)

Август — Wed, 11 Aug 2021 03:24:50 GMT

Hi,

I want test b0 + app and update app.

mcuboot + app I have solved this problem.

I have used smp_bt_register(); twice.

Thank you.

RE: ncs1.6.0 ota problem b0 or (immutable MCUboot)

Август — Tue, 10 Aug 2021 00:57:14 GMT

Hello，

Thank you. I have solved problem 2. I will upload my project 1.

devzone.nordicsemi.com/.../3107.hello_5F00_world.zip

RE: ncs1.6.0 ota problem b0 or (immutable MCUboot)

Einar Thorsrud — Mon, 09 Aug 2021 12:48:53 GMT

Hi,

I do not immediately spot the problem. Can you share the log from the nRF side? Also, can yo upload your project (so not just description of changes, but all .c files, prj.conf, CMakeLists.txt and any other files within your application folder?