OTA DFU NRF5340

RE: OTA DFU NRF5340

Simonr — Mon, 04 Apr 2022 09:18:44 GMT

Sorry about the late reply, but I've been out of office the past few days, and I'm currently working through my backlog.

Once the bootloader is on the nRF5340, it shouldn't be necessary to program the bootloader part multiple times, as long as you don't overwrite the flash where the bootloader is stored you should be able to do multiple DFUs as far as I can tell. As you're saying, if the DFU from the guide I linked to worked, that should work multiple times.

Best regards,

Simon

RE: OTA DFU NRF5340

kumanan — Tue, 29 Mar 2022 09:23:45 GMT

Hi Simon,

Let me explain this item 1

i understand that bootloader is updated into boot slot

I am not sure about SMP server - where it is getting loaded

i want to upgrade my app alone say Blinky1, Blinky2, Blinky3, Blinky4

what i need to include extra code/ config here? for boot and smp server to work, so that i can upgrade any number of times

Item 2. - idea is to automatically upgrade and get feedback whether the upgrade is successful

the system architecture is as below video ref

https://www.youtube.com/watch?v=bluz8uC7WEs

regards

Kumanan

RE: OTA DFU NRF5340

Simonr — Tue, 29 Mar 2022 06:16:29 GMT

1. I'm not sure I understand the question. DFU means Device Firmware Upgrade, so it is the update. Are you asking if you need to update the bootloader every time you do DFU as well? That should not be necessary I think.

2. That is possible, but you'll need a device connected to the cloud that can get the firmware from the cloud onto the nRF53. This could for example be a phone, where you can use the DFU library for Android / iOS to send FW to your device, and the .zip could be gotten from the cloud for example. We don't provide any Android / iOS cloud-example for DFU. I assume different cloud companies have example code how you download things from the cloud to your smartphone app.

Best regards,

Simon

RE: OTA DFU NRF5340

kumanan — Fri, 25 Mar 2022 07:45:28 GMT

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

RE: OTA DFU NRF5340

Simonr — Wed, 09 Mar 2022 08:35:13 GMT

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

RE: OTA DFU NRF5340

kumanan — Tue, 08 Mar 2022 11:18:47 GMT

Thanks for the help.

We want todo On the fly upload of firmware in NRF5340

Can you please guide us in this process

1. using BLE

2. remote update

regards

Kumanan

RE: OTA DFU NRF5340

Simonr — Mon, 07 Mar 2022 07:30:15 GMT

It seems like you are mixing the nRF5340 and nRF52840 here (the pca10056_s140.hex application is for an nRF52840 DK and a SoftDevice). I'm afraid the nrfutil tool won't work with nRF5340, as the nrfutil is designed for the nRF5 SDK, which the nRF5340 is not supported by.

For the nRF5340 you would need to use nRF Connect SDK, and to do DFU over UART in the nRF Connect SDK you will need to use MCUMGR and the smpsvr. You can read about the MCUMGR command line tool here, and how to use it is described in the SMP server sample documentation.

Best regards,

Simon