Critical Issue
There is an HDL syntax error in Pin Planner-generated top-level design files that contain a DDR or DDR2 SDRAM Controller variation.
Pin Planner-generated top-level design files that use a design that contains a DDR or DDR2 SDRAM Controller variation.
If you import the DDR or DDR2 SDRAM Controller Pin Planner file into Pin Planner and then generate a top-level design file for your design, it contains an HDL syntax error and does not compile in the Quartus II software. You cannot use this top -level design file for IO Assignment Analysis.
Use the IP Toolbench top-level example design and automatically assigned constraints to verify your pin and IO assignments.
This issue will not be fixed.