corresponding constraint file

blink.xdc

###################################################################################
# this file is modified from https://github.com/Digilent/digilent-xdc/blob/master/Arty-A7-35-Master.xdc
# here is the license from that repro:
#
# MIT License
#
# Copyright (c) 2017 Digilent
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
###################################################################################

#clock
set_property -dict { PACKAGE_PIN E3    IOSTANDARD LVCMOS33 } [get_ports { i_clock }];
create_clock -add -name sys_clk_pin -period 10.00 -waveform {0 5} [get_ports { i_clock }];

#light
set_property -dict { PACKAGE_PIN H5    IOSTANDARD LVCMOS33 } [get_ports { o_led }];