# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

#**************************************************************
# This .sdc file is created by Terasic Tool.
# Users are recommended to modify this file to match users logic.
#**************************************************************

# Create Clock
create_clock -period "50.0 MHz" [get_ports FPGA_CLK1_50]
create_clock -period "50.0 MHz" [get_ports FPGA_CLK2_50]
create_clock -period "50.0 MHz" [get_ports FPGA_CLK3_50]

# for enhancing USB BlasterII to be reliable, 25MHz
create_clock -name {altera_reserved_tck} -period 40 {altera_reserved_tck}
set_input_delay -clock altera_reserved_tck -clock_fall 3 [get_ports altera_reserved_tdi]
set_input_delay -clock altera_reserved_tck -clock_fall 3 [get_ports altera_reserved_tms]
set_output_delay -clock altera_reserved_tck 3 [get_ports altera_reserved_tdo]

# Create Generated Clock
derive_pll_clocks

# Set Clock Uncertainty
derive_clock_uncertainty
