The canonical “Hello, world!” of hardware is to blink a LED.
The directory hdl/vhdl/blink contains a VHDL example of a blink project.
This takes the 48 MHz clock and divides it down by a large number so you get an on/off pattern.
You can then load blink.dfu onto Fomu by using makeload or the same dfu-util-D command we’ve been using so
You should see a blinking pattern of varying color on your Fomu, indicating your bitstream was successfully loaded.