nrf9160 ota hello_world

[john.liu]

Hi:

I want to use hello_world example OTA nrf9160.

Reference application_update example.

How to use application_update?And How to modify hello_world into a file that can be used for OTA？

NCS:V2.1.2

[Øyvind]

Hello, 

I'm not sure I understand your issue. Do you want to program the nRF9160 with hello_world sample using the application_update sample?

Please read the documentation and provide more details to your inquiry. 

Kind regards,
Øyvind

[john.liu]

Hi:

When I run the application_update sample, it seems to enter the bootloader without running the application.

[Øyvind]

I'm not able to reproduce this issue in v2.1.2 on my side.

1. What modem FW are you running on your device?
2. What version of the nRF9160DK are you using?

In order to use the application_update sample to download a version of the hello_world from your host server of choice, you will need to add CONFIG_BOOTLOADER_MCUBOOT=y to the prj.conf of hello_world.
This will generate important OTA files such as the update image app_update.bin (build\zephyr\app_update.bin). This file can then be uploaded to e.g. AWS S3 bucket as described in the documentation of application_update.

Kind regards,
Øyvind

[john.liu]

Hi:

1,mfw_nrf9160_1.3.2.zip

2,

[john.liu]

And CmakeLists.txt Config:

cmake_minimum_required(VERSION 3.20.0)

find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
project(application_update)

# NORDIC SDK APP START
target_sources(app PRIVATE src/main.c)
target_sources(app PRIVATE C:/ncs/v2.1.2/nrf/samples/nrf9160/http_update/common/src/update.c)
target_include_directories(app PRIVATE C:/ncs/v2.1.2/nrf/samples/nrf9160/http_update/common/include)
# NORDIC SDK APP END

I don't know if it matters.

[Øyvind]

Thanks for sharing! Can you test with other samples as well, just to verify that they are working as intended?

Also, when building the project, do you get any warnings or similar?