Bare metal application for nRF53

[Semiory]

Hi,

could some one inform me how to create a bare metal project for nRF5340 (Network Core/Application Code)?
The specification gives everything to create an own stack on the chip.

It was simple to create a bare meal App for nRF52, but for nRF53 there is any driver lib given.

The examples given in a Tutorials (nRF Connect SDK Tutorial - Part 0-1-2 | NCS v1.4.0) are extremely restricted.

There is no sufficient tutorial with the description how to create a project from scratch with or without OS (Zephyr). Better without OS...

Simple Projects created directly in SES are not working at all.

Best regards

D.Krush

[Marjeris Romero]

Hi,

We don't recommend creating your own stack. It will be a lot of work for one person to do everything from scratch (specially if you are going to use Bluetooth and want the network core and application core to communicate with each other...) and that's why we have created the nRF Connect SDK to support the nRF53 chip.

I understand that using the Zephyr layers can seem a bit abstract. One solution is to use the nrfx APIs instead, which are closer to bare-metal. Here is an example which demonstrate how to use the nrfx-api here. That would be the closest you can get to what you are aiming for I think.

If you want to write to the registers in the nRF53 directly you can take a look at this project by a github user here. It's written for nRF52 but you can use the nRF53 PS to check for the registers' name for nRF53 and perhaps collaborate on that project.

Anyways, there are many arguments for and against using the Zephyr API vs the nrfx-API, some of them are highlighted in this devzone answer from one of my colleagues.

Best regards,

Marjeris