NCS v2.2.0 - UART Logging Backend Pin Configuration on Custom Board

[Kevin Lin]

Hi,

I need to use P0.24 for UART TX in my custom board.

In NCS v2.2.0, I don't know how to change this configuration to P0.24 for my custom board.

Does anyone know how to configure?

Thanks!

Best Regards,

Kevin

[SwRa]

Hello,

Please take a look at this ticket:  (Missing Ticket) 

Best Regards,

Swathy

[Kevin Lin]

Hi Swathy,

The ticket has disappeared.

Can you please reply again?

To give you a better understanding of my problem, please see the description below.

The current situation is to use the Central HIDS example from NCS v2.2.0 in a custom
board, and the UART console of the nrf52840 DK for Logging is TX -> P0.06, RX -> P0.08, and the custom board is TX -> P0.24, RX -> P0.22.

In order to change pin control, I refer to the Pin Control document to modify these pins number for requirement and flash the firmware to the custom board, but the UART console does not print anything. I am not sure if there's something I'm missing or which configuration was not correct to cause this problem.

nrf52840dk_nrf52840-pinctrl.dtsi

uart0_default: uart0_default {
	group1 {
		psels = <NRF_PSEL(UART_TX, 0, 6)>,
			<NRF_PSEL(UART_RTS, 0, 5)>;
	};
	group2 {
		psels = <NRF_PSEL(UART_RX, 0, 8)>,
			<NRF_PSEL(UART_CTS, 0, 7)>;
		bias-pull-up;
	};
};

uart0_sleep: uart0_sleep {
	group1 {
		psels = <NRF_PSEL(UART_TX, 0, 6)>,
			<NRF_PSEL(UART_RX, 0, 8)>,
			<NRF_PSEL(UART_RTS, 0, 5)>,
			<NRF_PSEL(UART_CTS, 0, 7)>;
		low-power-enable;
	};
};

costom_board-pinctrl.dtsi

uart0_default: uart0_default {
	group1 {
		psels = <NRF_PSEL(UART_TX, 0, 24)>,
			<NRF_PSEL(UART_RTS, 0, 5)>;
	};
	group2 {
		psels = <NRF_PSEL(UART_RX, 0, 22)>,
			<NRF_PSEL(UART_CTS, 0, 7)>;
		bias-pull-up;
	};
};

uart0_sleep: uart0_sleep {
	group1 {
		psels = <NRF_PSEL(UART_TX, 0, 24)>,
			<NRF_PSEL(UART_RX, 0, 22)>,
			<NRF_PSEL(UART_RTS, 0, 5)>,
			<NRF_PSEL(UART_CTS, 0, 7)>;
		low-power-enable;
	};
};

Could you tell me where the problem is or what information can be referred to, thank you very much.

Best Regards,

Kevin