Warning regarding ignored SDC when compiling PCIe design. - Warning regarding ignored SDC when compiling PCIe design. I running the compilation of PCIe avalon ST example design and get a lot of warning like below. Please help... Warning(332174): Ignored filter at altera_xcvr_native_a10_false_paths.sdc Replies: Re: Warning regarding ignored SDC when compiling PCIe design. Hi Sir, These warning can be ignore. See this KDB link: https://www.intel.com/content/altera-www/global/en_us/index/support/support-resources/knowledge-base/ip/2019/why-does-intel-arria-10-and-intel-cyclone-10-avalon-st-or-avalon-mm-interface-for-pci-express-ip-example-design-issue-ignored-sdc-constraint-warnings.html