set_property IOSTANDARD LVDS [get_ports clk_in1_n_0]
set_property PACKAGE_PIN AP26 [get_ports clk_in1_p_0]
set_property PACKAGE_PIN AP27 [get_ports clk_in1_n_0]
set_property IOSTANDARD LVDS [get_ports clk_in1_p_0]

