DFU in Zephyr + nsc 2.3.0

[babos]

Hello guys, I've been looking for an example of using DFU (Device Firmware Update) with Zephyr for quite some time now. Previously, I used to do it quite easily with the classic SDK in Keil uVision. However, I'm struggling to find a step-by-step example with the new operating system.

1. Project Configuration
2. Using DFU with BLE (Bluetooth Low Energy) via smartphone
3. How to create a signed file and add it to nrfToolBox
4. How to verify everything

"In practice, a Buttonless DFU (Device Firmware Update) in Zephyr."

Thanks in advance

Babos

[Hung Bui]

Hi Silvio, 

DFU protocol in Zephyr is quite different from the nRF SDK DFU protocol. 

Among other things here are the main difference: 

- On air protocols are different. They are not compatible. So the sign process is now different. The bootloader is now MCUBoot. 

- The DFU update is now background DFU update. Meaning the application doesn't switch to bootloader mode to do DFU (except for serial recovery mode)

- Only dual bank update supported. 

My suggestion is to have a look at the documentation here. We have a guide here that can help you to getting started with the DFU update. 

[babos]

Hi Hung,

I will let you know

thank you

S.

[babos]

CONFIG_MCUMGR was assigned the value y, but got the value n. Missing dependencies:
ZCBOR

[Hung Bui]

Hi Silvio, 
The sample is peripheral_lbs and it's located in \nrf\samples\bluetooth\peripheral_lbs.

Have you followed the last step to add: smp_bt_register() into the code ? 

[babos]

Hi Hung

yes, now i Found sample and it work properly !

Can I theoretically use it as a basis for having the OTA update on my programs?

S.

[Hung Bui]

Hi Silvio, 
Yes I don't see any problem using the lbs sample as the base for testing OTA.

[babos]

ok, thank you.

I thought it was necessary to adjust the program offset or relocate it. Now I'll try and tell you