Enabling GPIO UART under dietpi on odroid n2+ does't work

I have a problem to get working serial port under dietpi
When I will use a dietpi-config and switch on ttyS1
but it doesn’t work

ttyS1 I found in the wiki
odroid-n2:application_note:gpio:uart [ODROID Wiki]

what’s wrong and how to get working ?

Wire conection according to wiki


ok, solved
wiki is wrong. It’s ttyAML1

Jep, legacy kernel uses ttyS1, mainline kernel uses ttyAML1.