10-21-2014 05:51 AM
I designed a processor using Quartus 2 software and it compiles fine. My business partners however use Xilinx 8.1 & Xilinx 14.7 Version and on these platforms, the design will not compile. The file DorQ.vhd is the top level entity in the design. I have also attached the error messages generated. Could someone please suggest a solution to this problem. The syntax is ok but the program will not synthesize the design. Is there a setting that we can change to rectify this problem.
10-21-2014 08:14 AM
You have coded an internal tri-state bus and there are no internal tri-state resources available in modern FPGAs. The Quartus software is likely replacing the tri-state bus with an wired-OR function, but the Xilinx synthesizer does not and generates the error condition.