Warning (332174): Ignored filter at hps_sdram_p0.sdc(303): memory_mem_ck could not be matched with a clock - Warning (332174): Ignored filter at hps_sdram_p0.sdc(303): memory_mem_ck could not be matched with a clock Description Due to a problem in the automatically generated synopsys design constraints for the Arria® V/Cyclone® V Hard Processor System IP you may see this warning durng compilation or timing analysis. The problem is caused by incorrect assignment order within the hps_sdram_p0.sdc file. Resolution To workaround this problem you can modify the following lines the hps_sdram_p0.sdc file. From: # This is the CK clock foreach { ck_pin } { set_clock_uncertainty -to [ get_clocks ] (WL_JITTER) create_generated_clock -multiply_by 1 -source -master_clock "" -name } # This is the CK#clock foreach { ckn_pin } { set_clock_uncertainty -to [ get_clocks ] (WL_JITTER) create_generated_clock -multiply_by 1 -invert -source -master_clock "" -name } To: # This is the CK clock foreach { ck_pin } { create_generated_clock -multiply_by 1 -source -master_clock "" -name set_clock_uncertainty -to [ get_clocks ] (WL_JITTER) } # This is the CK#clock foreach { ckn_pin } { create_generated_clock -multiply_by 1 -invert -source -master_clock "" -name set_clock_uncertainty -to [ get_clocks ] (WL_JITTER) } This problem is scheduled to be resolved in a future release of the Quartus® II software. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['novalue'] novalue novalue ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']