RE: Changing pin configuration of Net Core

Sigurd — Mon, 04 Dec 2023 14:38:48 GMT

Hi!

It's the device-tree nrf-gpio-forwarder node that is used to set which pins will be forwarded to the network core. https://docs.zephyrproject.org/latest/build/dts/api/bindings/gpio/nordic,nrf-gpio-forwarder.html

By default, all pins are assigned to the application core. The app-core controls the allocation of the pins.

[quote user=""]Where do i need to put the overlay file? Root directory of project? In a child image folder?[/quote]

Put it your_app/boards/ folder

Name the file nrf5340dk_nrf5340_cpuapp.overlay , and the content of the file like shown below:

&gpio_fwd {
	status = "disabled";
};

This will disable the pin forwarding to the network core.