We will go through the steps of communicating to a digilent Zedboard using the UART and the Ethernet port.
This tutorial assumes that the zedboard SD card was flashed with the Xillinux distribution for Zynq-7000 EPP
and the host system is running a ubuntu 14.04 or newer (tested on 16.04).
Connect the host (USB) to the zedboard's UART port (micro USB) and execute on the host: