# 125MHz clk
set_io clk K17

# in[] correspond with SW0-SW3 on the zybo
set_io sw[0] G15
set_io sw[1] P15
set_io sw[2] W13
set_io sw[3] T16

# out[] correspond with LD0-LD3 on the zybo
set_io led[0] M14
set_io led[1] M15
set_io led[2] G14
set_io led[3] D18