uart0 overlay for hello_world app

[Bret Foreman]

I've got a custom board based on the nRF52810 SoC. I want to use GPIO P0.06 for UART_TX and P0.08 for UART_RX. I used the new board wizard in nRF Connect to create a new board based on the nrf52810 and added the following overlay code:

&uart0 {
    status = "okay";
    compatible = "nordic,nrf-uart";
    tx-pin = < 6 >;
    rx-pin = < 8 >;
    current-speed = < 115200 >;
    parity = "none";
    rts-pin = < 0xffffffff >;
    cts-pin = < 0xffffffff >;
};

The app builds and appears to run (I can step in the debuger), but I'm not seeing the "Hello World" text output on GPIO pin P0.06.

I'm guessing I need to add some more stuff to my overlay file. What am I missing?

Project folder attached here.

7360.hello_world.zip

[Bret Foreman]

Note that I have an nRF52 DK with the 52832 chip. A working Zephyr example of how to remap the UART pins on that board would probably give me a clue how to do it on my target.