#
# The ADI JESD204 Core is released under the following license, which is
# different than all other HDL cores in this repository.
#
# Please read this, and understand the freedoms and responsibilities you have
# by using this source code/core.
#
# The JESD204 HDL, is copyright © 2016-2017 Analog Devices Inc.
#
# This core is free software, you can use run, copy, study, change, ask
# questions about and improve this core. Distribution of source, or resulting
# binaries (including those inside an FPGA or ASIC) require you to release the
# source of the entire project (excluding the system libraries provide by the
# tools/compiler/FPGA vendor). These are the terms of the GNU General Public
# License version 2 as published by the Free Software Foundation.
#
# This core  is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License version 2
# along with this source code, and binary.  If not, see
# <http://www.gnu.org/licenses/>.
#
# Commercial licenses (with commercial support) of this JESD204 core are also
# available under terms different than the General Public License. (e.g. they
# do not require you to accompany any image (FPGA or ASIC) using the JESD204
# core with any corresponding source code.) For these alternate terms you must
# purchase a license from Analog Devices Technology Licensing Office. Users
# interested in such a license should contact jesd204-licensing@analog.com for
# more information. This commercial license is sub-licensable (if you purchase
# chips from Analog Devices, incorporate them into your PCB level product, and
# purchase a JESD204 license, end users of your product will also have a
# license to use this core in a commercial setting without releasing their
# source code).
#
# In addition, we kindly ask you to acknowledge ADI in any program, application
# or publication in which you use this JESD204 HDL core. (You are not required
# to do so; it is up to your common sense to decide whether you want to comply
# with this request or not.) For general publications, we suggest referencing :
# “The design and implementation of the JESD204 HDL Core used in this project
# is copyright © 2016-2017, Analog Devices, Inc.”
#
<: set ComponentName [getComponentNameString] :>
<: setOutputDirectory "./" :>
<: setFileName [ttcl_add $ComponentName "_constr"] :>
<: setFileExtension ".xdc" :>
<: setFileProcessingOrder late :>
<: set sysref_iob [get_property PARAM_VALUE.SYSREF_IOB] :>
<: set async_clk [getBooleanValue "ASYNC_CLK"] :>

set_property ASYNC_REG TRUE \
  [get_cells {i_lmfc/sysref_d1_reg}] \
  [get_cells {i_lmfc/sysref_d2_reg}]

# Make sure that the device clock to sysref skew is at least somewhat
# predictable
set_property IOB <=: $sysref_iob :> \
  [get_cells {i_lmfc/sysref_r_reg}]

<: if {$async_clk} { :>

set link_clk [get_clocks -of_objects [get_ports -quiet {clk}]]
set device_clk [get_clocks -of_objects [get_ports -quiet {device_clk}]]

# sync event i_sync_lmfc
set_false_path -quiet \
  -from $device_clk \
  -to [get_cells -quiet -hier *cdc_sync_stage1_reg* \
    -filter {NAME =~ *i_sync_lmfc/i_sync_out* && IS_SEQUENTIAL}]

set_false_path -quiet \
  -from $link_clk \
  -to [get_cells -quiet -hier *cdc_sync_stage1_reg* \
    -filter {NAME =~ *i_sync_lmfc/i_sync_in* && IS_SEQUENTIAL}]

# sync bits i_next_mf_ready_cdc 
set_false_path \
  -from $link_clk \
  -to [get_cells -quiet -hier *cdc_sync_stage1_reg* \
    -filter {NAME =~ *i_next_mf_ready_cdc* && IS_SEQUENTIAL}]

# sync bits i_link_reset_done_cdc 
set_false_path \
  -from $link_clk \
  -to [get_cells -quiet -hier *cdc_sync_stage1_reg* \
    -filter {NAME =~ *i_link_reset_done_cdc* && IS_SEQUENTIAL}]

# sync bits gearbox/i_sync_ready
set_false_path \
  -from $link_clk \
  -to [get_cells -quiet -hier *cdc_sync_stage1_reg* \
    -filter {NAME =~ *i_sync_ready* && IS_SEQUENTIAL}]

# gearbox distributed RAM
set_false_path -quiet \
  -from $device_clk \
  -to [get_cells -quiet -hier *mem_rd_data_reg* \
    -filter {NAME =~ *i_tx_gearbox* && IS_SEQUENTIAL}]

<: } :>