System Console to inject commands into fifo

This tutorial shows how to setup a Qsys design and to use system console:

http://www.alterawiki.com/wiki/using_the_usb-blaster_as_an_sopc/qsys_avalon-mm_master_tutorial

However, injecting commands into a FIFO is not really a feature of system console, that would be a feature of your design, eg., write to a location using system console to write to your FIFO logic.

Cheers,

Dave