set_io --warn-no-port LED2 G1
set_io --warn-no-port LED3 J9
set_io --warn-no-port LED4 E8
set_io --warn-no-port LED5 J2

# LED
set_io --warn-no-port LED1 B3

# 16MHz clock
set_io --warn-no-port clk B2 # input