Hello @ALIGMSTEN,
I want to use UART5, which is located on the TX-PH2 and RX-PH3 pins. As far as I understand, this UART is initially disabled. To enable it, I tried using the command armbian-config -> System -> Hardware, but I couldn't do it because nothing was displayed in the graphical interface (as shown in the screenshot above).
After doing some research, I started experimenting with the /boot/armbianEnv.txt file. I added the line overlay_prefix=sun50i-h616. After rebooting the board, I tried using armbian-config -> System -> Hardware again, and now the interface displays the hardware peripherals along with the UART5 that I need. By enabling it, I can receive data through the TX-PH2 and RX-PH3 pins via /dev/ttyS1.
So, I have essentially solved my problem, but I still have a few questions:
Is there a simpler or recommended way to enable UART5 on this board without manually editing the /boot/armbianEnv.txt file?
Are there any potential issues or pitfalls I should be aware of when using this method?
Is it a bug that the interface in armbian-config -> System -> Hardware did not display initially on various versions of the system?
Thank you.