Hello,   after some time i am trying to work again on my Orange Project. Now i want to connect an serial device on UART2 (PA0 / PA1).   The devices /dev/ttyS0 - S3 are existant, but no data is coming in over RXD.   I already read the thread here and tried to check the configuration.   I upgraded my armbian and i am now working with ARMBIAN 5.60 stable Debian GNU/Linux 9 (stretch) 4.14.70-sunxi64 So i hopefully found the configuration in /boot/dt