BT shell - board resources used

[eyalasko]

Hello

I started developing a BT shell based app on the nRf52840DK board and then moved to a custom board.

In the overlay file, I've deleted every nRf52840DK node I could think of (except of UART0) to prevent contention with the board's peripherals.

Still, I see gpios toggling 'on their own'.

My question is - what HW resources does the BT shell uses (other than UART0) and how to disable these?

Thanks

[Vidar Berg]

Hello,

This sample does not configure any GPIOs or peripherals that will toggle any output signa as far as I can tell(apart from the UART of course). You could check the generated zephyr.dts file for your application to confirm that the nodes are deleted, but I don't see any nodes that would have to be disabled or removed. Which GPIOS are you seeing this on? Did you check the signal wilth a scope or logic analyzer?

Best regards,

Vidar