Digilent Basys Board Rev.E - Manual (Page 12)

Digilent
Basys Reference Manual
www.digilentinc.com
Copyright Digilent, Inc. Page 12/12 Doc: 502-107
Built in Self Test
A demonstration configuration is loaded into the Platform Flash ROM during manufacturing. This
demo, also available on the resource CD and on the Digilent website, can serve as a board
verification test since it interacts with all devices and ports on the Basys board. To configure the
FPGA from a bit file stored in Platform Flash, set the Mode Jumper to ROM and cycle power or press
the FPGA reset button (BTNR).
The self-test connects the switches to the LEDs, the buttons and PS/2 keyboard (if attached) to the
seven-segment display, and a VGA monitor (if attached) will show a color pattern. By interacting with
the buttons and switches on the Basys board (and the keys on a PS/2 keyboard if attached), and
watching the LEDs, seven-segment display, and VGA monitor (if attached), any hardware problems
with the Basys board can be readily identified.
If the self test is not resident in the Platform Flash ROM, it can be programmed into the FPGA or
reloaded into the ROM using the Adept programming software.