Using VHDL:

Derive a simple software program to blink the LEDs. The specification is 16 LEDs blinks at the same time with two different rates. Thee on-and off intervals of fast and slow rates are 30 ms and 200 ms, respectively. The leftmost switch (sw [0]) controls the blinking rate. When the switch changes state (i.e., 0 to 1 or 1 to 0). a status message, "LED currently blinks fast" or "LED currently blinks slow, " is send to UART (and displayed in PuTTY console)