set_property PACKAGE_PIN V2 [get_ports sw[8] ]
set_property PACKAGE_PIN T3 [get_ports sw[9] ]
set_property PACKAGE_PIN T2 [get_ports sw[10]]
set_property PACKAGE_PIN R3 [get_ports sw[11]]

set_property PACKAGE_PIN U19 [get_ports diff_p[0]]
set_property PACKAGE_PIN V19 [get_ports diff_n[0]]
set_property PACKAGE_PIN V13 [get_ports diff_p[1]]
set_property PACKAGE_PIN V14 [get_ports diff_n[1]]