Firmware update without DFU

[Jithin A]

Hi, I am new to the Nordic environment. So far I have done all the integration by going through your examples code which is very good.

Now, one thing I have no knowledge about is updating the firmware image(non-secure + TF-M) without using DFU.

I do not want FW update over DFU for some personal reasons.

Please guide me to any reference or documentation for how to build a bootloader and configure the application image to run with the bootloader and do OTA update.

I do not know from where to start for implementing the OTA update.

Thank you in advance.

My setup:

NRF SDK: v2.2.0

Board: nRF5340-DK

[Marte Myrvold]

Hi,

Can you clarify what you mean by not wanting to do fw update over DFU? DFU is device firmware update, so if you want to update your device, then this will be DFU, Do you mean that you do not want to update the device over serial (e.g. UART), but only over the air?

Best regards,

Marte

[Jithin A]

Hello, just to let you know that I need to implement this onto my project with high priority.

Please let me know if I am missing anything to explain my need.

Please help me with the integration ASAP.

[Jithin A]

Hi Marte, I try to integrate the dfu_target APIs into my application image and I see undefined reference to the dfu APIs.

I know I am missing something to say include dfu_target APIs into my application but I do not know what I need to add/do to enable.

Please guide me.

[Jithin A]

Hi Marte, any update on this.

[Marte Myrvold]

Hi,

Jithin A said:

I try to integrate the dfu_target APIs into my application image and I see undefined reference to the dfu APIs.

Please share the error you are getting.

Best regards,

Marte

[Jithin A]

Below is the error I see:

undefined reference to `dfu_target_done'
undefined reference to `dfu_target_offset_get'
undefined reference to `dfu_target_schedule_update'
undefined reference to `dfu_target_write'

[Marte Myrvold]

Hi,

You must include dfu_target.h file in your file:

#include <dfu/dfu_target.h>

Additionally, you must enable DFU target in prj.conf:

CONFIG_DFU_TARGET=y

Best regards,

Marte

[Jithin A]

Hi Marte,

Thank you for the response but sorry I still see the same error.

[Marte Myrvold]

Hi,

Please do a pristine build and copy and upload the entire build output here.

Best regards,

Marte

[Jithin A]

PFA,

dfu_integration_build_log.txt

[Marte Myrvold]

Hi,

I see that you have asked about the same issue in 301655. Please do not create duplicate tickets or ask about the same problem in multiple tickets. My colleague will continue in 301655, and I will close this as a duplicate.

Best regards,

Marte