I followed the instructions for setting up the debug console [1] and I am not seeing any output at all on the debug console.
I’m using a CH340G based USB UART that supports 1500000 baud [2]. This UART works for me on my Pine64 Rockpro64. It has two voltage settings; 3.3 and 5 volts. For Pine64 it needs to be 3.3 or it will fry the board. What voltage is correct for the Rock Pi N10 debug console?
[1] https://wiki.radxa.com/RockpiN10/dev/serial-console
[2] https://ameridroid.com/products/usb-uart-serial-console