OTA DFU NRF5340

[kumanan]

Hi,

The below is our requirement for NRF5340

1. we have a DFU application with bootloader as an hex file

2. we have another app say blinky as an hex file

3. merge these two hex files and create a new hex file - using 

nrfutil pkg generate --hw-version 53 --application-version 1 --application ble_app_blinky_pca10056_s140.hex --sd-req 0xA9 --key-file private.key app_dfu_package.zip

4. using NRF connect in mobile load this merged hex file and flash it 

We are getting conflict in step 3

Please help us resolve this issue

[Simonr]

Hi Kumanan

Please check out the nRFConnect SDK DFU support guide made by my colleague here, alongside the nRF5340 user guide on FOTA upgrades and multi-image DFU.

Best regards,

Simon

[kumanan]

Hi Simon,

1. We have tried DFU as per the instruction it works

We he a question here,

Do we need to include DFU in every update?

2 ,next step on remote update

we are thinking of updating via cloud based distribution

like HawkBit. Can you please help us on this behalf

Is this right idea? can it work?

if you have any idea on this please throw some light

Best

Kumanan