Answers Database
FPGA Express: "XNF Bus style" checkbox in Synthesis->Options->Project defined
Record #3781
Product Family: Software
Product Line: Synopsys
Product Part: FPGA Express
Product Version: 2.0.3
Problem Title:
FPGA Express: "XNF Bus style" checkbox in Synthesis->Options->Project defined
Problem Description:
Urgency: Standard
General Description:
XNF files written by FPGA Express (1.x, 2.0.x) will always use angle brackets
when defining buses (i.e. BUS<3>). There is no way to alter this
functionality.
Under Synthesis->Options->Project, there is a field to alter the "XNF Bus
style". However, this field refers only to incoming XNF files read by Express.
This is necessary to allow Express to re-assemble buses.
Xilinx recommends treating XNF modules as black boxes instead of reading these
files in for re-optimization, as re-optimization has shown to cause problems
for some designs. See (Xilinx Solution 3508) for more details.
Solution 1:
Any modification of bus naming conventions within files produced by Express
must be done manually. Using your favorite text editor, globally search for
and replace the angle brackets, "<" and ">".
See (Xilinx Solution 2076) for more information.
End of Record #3781 - Last Modified: 04/14/98 09:33 |
