How to add nRF5_SDK_17.0.2 to any zephyr example?

[Shivek]

I started my Bluetooth application based on zephyr examples found in nRF Connect SDK v1.4.1(C:\Users\...\ncs14\v1.4.1\zephyr\samples). Now I need to add custom service for my application but I am not able to find any reference to collaborate my project with nRF5_SDK_17.0.2. As I am using nRF52840, I think Softdevice I would be using s140. So, can you please help me to use nRF5_SDK libraries in my project. 

I will appreciate, if you can provide me any way to create GATT custom service.

Another question, if any example is meant for nRF9160dk_nRF52840 then what would I have to do to make the same project working with other nRF52840 based boards like Thingy91?

[Kenneth]

Check out this guide:

https://devzone.nordicsemi.com/nordic/nrf-connect-sdk-guides/b/software/posts/building-a-ble-application-on-ncs-comparing-and-contrasting-to-softdevice-based-ble-applications 

[Shivek]

Hi Kenneth, thanks for the link. This gave me even more insight to distinguish between zephyr based firmware and Softdevice based firmware. I am able to make custom service now. 

I am still wondering to add softdevice into any Zephyr based examples i.e., samples in ncs14\v1.4.1\zephyr\samples\bluetooth folder. Because it would be handy to use nRF Softdevice along with Zephyr libraries. 

Thanks!