mirror of
https://github.com/fpganinja/taxi.git
synced 2025-12-09 08:58:40 -08:00
20 lines
597 B
Tcl
20 lines
597 B
Tcl
# SPDX-License-Identifier: CERN-OHL-S-2.0
|
|
#
|
|
# Copyright (c) 2020-2025 FPGA Ninja, LLC
|
|
#
|
|
# Authors:
|
|
# - Alex Forencich
|
|
#
|
|
|
|
# reset synchronizer timing constraints
|
|
|
|
foreach inst [get_cells -hier -filter {(ORIG_REF_NAME == taxi_sync_reset || REF_NAME == taxi_sync_reset)}] {
|
|
puts "Inserting timing constraints for taxi_sync_reset instance $inst"
|
|
|
|
# reset synchronization
|
|
set reset_ffs [get_cells -quiet -hier "sync_reg_reg[*]" -filter "PARENT == $inst"]
|
|
|
|
set_property ASYNC_REG TRUE $reset_ffs
|
|
set_false_path -to [get_pins -of_objects $reset_ffs -filter {IS_PRESET || IS_RESET}]
|
|
}
|