Article ID: 000074323 Content Type: Error Messages Last Reviewed: 09/26/2014

Warning (332174): Ignored filter at hps_sdram_p0.sdc(303): memory_mem_ck could not be matched with a clock

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
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.

Related Products

This article applies to 1 products

Intel® Programmable Devices