nRF5340 firmware update from nRF Connect SDK ver. 2.3.0 to ver. 2.7. 0

RE: nRF5340 firmware update from nRF Connect SDK ver. 2.3.0 to ver. 2.7. 0

Sigurd Hellesvik — Fri, 14 Feb 2025 09:15:53 GMT

[quote user="tomo92"]Is our understanding correct that with the SDK v2.8.0, simultaneous updates are possible, but non-simultaneous updates are not?[/quote]

This has taken a bit longer than expected cause I was looking into the question assuming you referred to Serial Recovery. However, it just hit me:
Do you mean simultaneous vs non-simultaneous over BLE?

If you do, I have the answer ready to go

RE: nRF5340 firmware update from nRF Connect SDK ver. 2.3.0 to ver. 2.7. 0

Sigurd Hellesvik — Mon, 10 Feb 2025 14:51:20 GMT

[quote user="tomo92"]Is our understanding correct that with the SDK v2.8.0, simultaneous updates are possible, but non-simultaneous updates are not?[/quote]

I will continue to help with this ticket.

I will verify which it is and get back to you soon.

RE: nRF5340 firmware update from nRF Connect SDK ver. 2.3.0 to ver. 2.7. 0

tommy — Wed, 05 Feb 2025 03:55:24 GMT

Thank you for your answer.

We are implementing firmware updates for the nRF5340 using nRF Connect SDK v2.8.0.

We have checked the following URL.

Is our understanding correct that with the SDK v2.8.0, simultaneous updates are possible, but non-simultaneous updates are not?

RE: nRF5340 firmware update from nRF Connect SDK ver. 2.3.0 to ver. 2.7. 0

Hung Bui — Thu, 19 Dec 2024 09:16:37 GMT

Hi Tomokuni,
I'm really sorry that I was assuming you were asking about DFU over BLE (FOTA).
If you are planning to do serial DFU, I think it's possible to update the application core and netcore.
Since the size of the application is over 50% of the flash size of the chip, you may need to think about using the serial recovery feature on MCUBoot.
You can read more about this option here: https://github.com/hellesvik-nordic/samples_for_nrf_connect_sdk/tree/main/bootloader_samples/serial_recovery

We actually have a similar ticket not too long ago: How to enable Serial Recovery mode on the nrf5340_audio application (Sysbuild)?

The customer managed to do DFU update (but without sysbuild). In my opinion, it should work with sysbuild as well. Unfortunately, we haven't got time to try testing with sysbuild yet.

Note, you will have to do DFU 2 times, first for the netcore and then for the application core.

RE: nRF5340 firmware update from nRF Connect SDK ver. 2.3.0 to ver. 2.7. 0

tommy — Wed, 18 Dec 2024 23:08:03 GMT

Hung, thank you for your reply.

"Which firmware are you compiling ?"

Compiling the audio firmware (nrf5340_audio).

"it's not possible to do DFU update without external flash if you plan to update both network core and application core."

The tutorial you taught me before

https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-8-bootloaders-and-dfu-fota/topic/dfu-for-the-nrf5340/

It says that non-simultaneous update allows DFU of network core and application core without external flash.

I used this sample program because the audio firmware (nrf5340_audio) supports the nRF5340 Audio DK.

The ultimate goal is to run DFU from an SD card.

the nRF5340 Audio DK without external flash.

If there is a sample program that can DFU the network core and the application core, please let me know.

I'm not particular about FOTA.

RE: nRF5340 firmware update from nRF Connect SDK ver. 2.3.0 to ver. 2.7. 0

Hung Bui — Tue, 17 Dec 2024 12:49:10 GMT

Hi Tomokuni,

Which firmware are you compiling ? If you are doing the audio firmware, it's not possible to do DFU update without external flash if you plan to update both network core and application core.

Please take a look here: https://docs.nordicsemi.com/bundle/ncs-2.5.1/page/nrf/applications/nrf5340_audio/README.html#nrf53-audio-app-configuration-configure-fota

RE: nRF5340 firmware update from nRF Connect SDK ver. 2.3.0 to ver. 2.7. 0

tommy — Mon, 16 Dec 2024 23:38:27 GMT

Hung, thank you for your reply.

I would like to know two things: how to avoid accessing external flash and how to reduce the firmware size to perform FOTA without using external flash.
Since we have just compiled the sample program provided by Nordic as it is.

RE: nRF5340 firmware update from nRF Connect SDK ver. 2.3.0 to ver. 2.7. 0

Hung Bui — Mon, 16 Dec 2024 11:35:51 GMT

Hi Tomokuni,

I think the issue here is that the program expecting to be able to access the external flash that you don't have.
That's why you received:
E: Failed to open flash area ID 2 (image 0 slot 1): -19, cannot continue

The reason for that is that there will not be enough free space to receive image to the internal flash. So an external flash is needed. This is mentioned in the ticket you pointed to: https://devzone.nordicsemi.com/f/nordic-q-a/116646/how-to-configure-foat-function-for-le-audio-project

RE: nRF5340 firmware update from nRF Connect SDK ver. 2.3.0 to ver. 2.7. 0

tommy — Mon, 16 Dec 2024 09:20:06 GMT

Thank you for your reply.

Also, I am sorry for my late reply.

As mentioned in the question, I do not use external flash storage.

I have just started using v2.8.0.

I am trying to check the FOTA operation using the sample program "nrf 5340_ audio" using the nRF5340 Audio DK, but the software does not start due to an error.

・The sample program has not been modified

・Compilation can be done using the

https://devzone.nordicsemi.com/f/nordic-q-a/116646/how-to-configure-foat-function-for-le-audio-project

as a reference.

It has not started due to the following error.

For details such as log, I will attach an excel file.

How can I avoid this error?

Add_FOTA:the log after FOTA added
Do_not_add_FOTA: the log before FOTA added

devzone.nordicsemi.com/.../Add_5F00_FOTA.txt devzone.nordicsemi.com/.../Do_5F00_not_5F00_add_5F00_FOTA.txt

RE: nRF5340 firmware update from nRF Connect SDK ver. 2.3.0 to ver. 2.7. 0

Hung Bui — Mon, 30 Sep 2024 14:10:33 GMT

Hi Tomoku,

I don't see a reason why FOTA wouldn't work to upgrade the application from v2.3.0 to v2.7.0

But you need to make sure you can update both the network core and the application core simultaneously. This is important because there can be some changes in the netcore or app core that may require that they have to be updated together.
Please take a look here: https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/app_dev/device_guides/nrf53/simultaneous_multi_image_dfu_nrf5340.html

We have a tutorial here in our Dev Academy.

Do you have an external flash storage ?