STUCK to use FOTA (Custom Application) with Asset Tracker v2 on nRF9160.

[MAhmed106]

Hi Nordic

We are developing our IOT product and we are starting our development of firmware on nRF9160 DK so that we can port that code to our custom PCB that will contain nRF9160.

Asset Tracker is working fine and now i want to test FOTA feature in asset tracker code. 

I have added a Printf in main loop of asset tracker that indicates me when i update the FW via usb cable. 

Now i want to update FW via FOTA. 

i have read almost all kinds of NRF Docs and studied almost all dev zone quieres regarding FOTA, but didnt find a clue on how to test FOTA on asset tracker. 

I want to use asset tracker as my base project and integrate some additonal sensors with it. But i am unable to find and fix problems, so i need your help.

Please help in the followings things

1. FOTA update in asset tracker code. (I need application layer FOTA, not modem layer)

2. nRF Cloud says create a new bundle and says (To update your devices, you need to create an update bundle. An update bundle is a zip file consisting of a manifest file as well as the actual binary update files.) . Now i dont know which files and which binaries are needed to create a bundle for FOTA update. 

If there is some youtube video that explains some FOTA basic stuff, step by step that is very helpful. Like VS Code nRF development has a good youtube video series. 

I will be very grateful if you help me on how to achive above two items in the firmware.

Thanks

[Jørgen Kvalvaag]

You can create a new bundle in the nrfcloud.com UI. Click "Device Managment" > "Firmware Updates" and on that page there is a "Create Update" bundle. After it's created it should show up under the "Bundles" tab.

You can also upload a bundle zip using the REST API. The docs describe the URL format, the manifest file contents and some example curl commands to upload it: api.nrfcloud.com/v1

[MAhmed106]

Dear I know that bundle can be created from nrfcloud.com

I want to know which firmware files will be included in the bundle. 

When I create bundle it browse to find files. Which files I need to add in the bundle. 2ndly when segger embedded studio compiles all the binary files. Where does it store fota files so that I can use those files to create a bundle  

Thanks

[Albrecht Markus Schellenberger]

Hello Muhammad, 

MAhmed106 said:

When I create bundle it browse to find files. Which files I need to add in the bundle. 2ndly when segger embedded studio compiles all the binary files. Where does it store fota files so that I can use those files to create a bundle  

when building your application with FOTA enabled, you should get the following file:

.../<your build folder>/zephyr/dfu_application.zip

This .zip contains the manifest and binary firmware update image.

Regards,

Markus

[Markus Tacker (he/him)]

I found the documentation of the manifest.json format that nRF Cloud expects here: api.nrfcloud.com/v1

[Patrick Barnes]

Today we updated the API docs for additional information that should address everything in this ticket: https://api.nrfcloud.com/v1#operation/UploadFirmware. It's also worth reading docs.nrfcloud.com/.../FOTA

Let us know if you need further assistance.