# # Copyright 2023 Ettus Research, a National Instruments Brand # # SPDX-License-Identifier: LGPL-3.0-or-later # # Description: # Clock definition constraints for X440 400 type images # # Data clocks: Generated by the MMCM, used for data paths between the RFDC output # and RFNoC. Maximum supported master clock rate is 500 Msps @8SPC => 62.5 MHz. # Theoretical maximum converter rate is 4.096 GSps, so really, 512 Msps @ 8SPC => 64 MHz. set rfdc_data_clk_period 15.625 create_clock -name rfdc_r0_clk -add \ -period $rfdc_data_clk_period \ [get_pins x440_ps_rfdc_bd_i/rfdc/data_clock_mmcm/inst/CLK_CORE_DRP_I/clk_inst/mmcme4_adv_inst/CLKOUT2] create_clock -name rfdc_r1_clk -add \ -period $rfdc_data_clk_period \ [get_pins x440_ps_rfdc_bd_i/rfdc/data_clock_mmcm/inst/CLK_CORE_DRP_I/clk_inst/mmcme4_adv_inst/CLKOUT5]