We are running into timing problems due to awkward placing of some critical code paths of our CLIP. An external partner has mentioned the ability to assign priority to specific code paths via Area_Group PRIORITY contraints.
Our partner mentions that the constraints do not belong in the UCF file but should be placed in a PCF file. Unfortunately the CLIP wizard complains about the file type if I add a PCF file to the CLIP definition. How should I go about this, will LV FPGA still use the PCF file if I include it or will it be ignored. Id there another way of specifying a PRIORITY constraint for the compilation?