## Clock signal
set_property -dict { PACKAGE_PIN H9 IOSTANDARD LVDS } [get_ports i_clk_p];
set_property -dict { PACKAGE_PIN G9 IOSTANDARD LVDS } [get_ports i_clk_n];
create_clock -add -name sys_clk_pin -period 8 [get_nets i_clk];

## LED
set_property -dict { PACKAGE_PIN AL11 IOSTANDARD LVCMOS12 } [get_ports q];
set_property -dict { PACKAGE_PIN AL17 IOSTANDARD LVCMOS12 } [get_ports o_uart_tx]