The difference between 12.1 and 12.2 is:
- 12.1 Project Navigator copies all NGC files generated by XPS in theimplementation folder of the current XPS project into thetop ISE project.
- 12.2Project Navigator copies only one NGC file (top level NGC file of EDK submodule) into ISE project.
Solution 1 Add the user_black_box attribute to your HDL code. If you have your EDK project instantiated as system:
VHDL attribute box_type : string;
attribute box_type of system : component is "user_black_box";
Verilog (* box_type = "user_black_box" *)
system u1 (. . . . );
Solution 2 Add "Macro Search Path" = XPS project implementation sub-directory to Translate Properties so that NGDBuild can find the netlists.