# Copyright (c) 2020 Alex Forencich # # 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. # RGMII PHY IF timing constraints proc constrain_rgmii_phy_if_inst { inst } { puts "Inserting timing constraints for rgmii_phy_if instance $inst" # reset synchronization set_false_path -from * -to [get_registers "$inst|tx_rst_reg[*] $inst|rx_rst_reg[*]"] # clock output # set_max_delay -from [get_registers "$inst|rgmii_tx_clk_1"] -to [get_cells "$inst|clk_oddr_inst|altddio_out_inst|auto_generated|ddio_outa[0]"] 2.000 # set_max_delay -from [get_registers "$inst|rgmii_tx_clk_2"] -to [get_cells "$inst|clk_oddr_inst|altddio_out_inst|auto_generated|ddio_outa[0]"] 2.000 }