Serial console access

Has anyone tried the bios serial console? I tried to use some adapters and access it, but I can’t have a console.
-checked if tx,rx are inthe wrong pins
-followed the tutorial using the minicom
-checked if the cables are well conected

Anyone got any ideia to try another way to access the bios serial console?

I would like to try as well, but don’t have the serial adapter board. Where did you buy it?

Btw, could it be that the debug UART port is 1.8V instead of 3.3V? Probably not, the debug UART on the UP2 is 3.3V.