How can I output log information on my nrf9160 board?

[duxinglang]

I have designed a nrf9160 debugging board, which uses 18 and 19 pin as the log output. Then I also configure the TX and Rx of UART0 in the overlay file, which are 18 and 19 respectively. However, when I connect to the PC with the serial port cable, I find that there is no log information output. How can I do this?

&uart0{
	status = "okay";
	current-speed = <115200>;
	tx-pin = <18>;
	rx-pin = <19>;
	#rts-pin = <14>;
	#cts-pin = <15>;
};

[duxinglang]

Yes, i only use tx and rx pins, my project is base on NCS v1.2.0.

[Martin Lesund]

Please try to use another serial terminal, e.g. Termite.

Another thing you could do is connect a logic analyzer to the UART pins to if it behaves correctly.

You could also debug your code and check if the UART callback handler is triggered when you try to send an AT command to the nrf9160