Accessing NET core peripherals from the APP core

[Esi]

Hi all,

In my application I need to use some of the NET core peripheral from the APP core (since I ran out of peripheral instances in the APP core). According to this page ( nRF5340 Shared Peripherals between APP and NET cores) it should be possible to interact with the NET core peripheral registers directly from the APP core. However, the problem I'm facing is that the NET core peripherals are all non-secure and normally when I want to access any of the peripherals in the non-secure address space, I need to configure the access through the SPU peripheral. Otherwise I get a bus fault. The SPU peripheral however only has configuration for the core peripheral IDs.

Do you know how one can access the NET core peripherals?

[Sigurd]

Hi!

According to this page ( nRF5340 Shared Peripherals between APP and NET cores) it should be possible to interact with the NET core peripheral registers directly from the APP core.

It says "you indeed can access any peripheral on the app core from the network core.", you are trying the opposite.

[Esi]

Yeah that's true. So does that mean what I'm trying to do is not possible?

[Sigurd]

Esi said:

So does that mean what I'm trying to do is not possible?

Correct. The application core peripherals are accessible from the network core, but the network core peripherals are not accessible from the application core.