I am unable to access internet via tethering, on A20-OLinuXino-LIME2, booted with A20-OLinuXino-focal-base-20210707-172415.img.7zimage. Please assist for this.
A20 processor on A20-OLinuXino-LIME2 has 8 UARTS. which are usable to interface peripherals?. Please suggest if there is a method in it to enable each UART.
You can enable or disable these using a configuration script. Run olinuxino-overlay as root. Mark or unmark what you want to enable or disable then save changes and reboot. For more information about Olimage refer to this document:
https://github.com/OLIMEX/OLINUXINO/blob/master/DOCUMENTS/OLIMAGE/Olimage-guide.pdf