set_property PACKAGE_PIN A8  [get_ports i0]
set_property PACKAGE_PIN C11 [get_ports i1]
set_property PACKAGE_PIN H5  [get_ports o]

set_property IOSTANDARD LVCMOS33 [get_ports i0]
set_property IOSTANDARD LVCMOS33 [get_ports i1]
set_property IOSTANDARD LVCMOS33 [get_ports o]