When I open the Post-Place & Route Static Timing report in ISE, the process claims to be successful, but there is no "twr" file generated.
Started : "Generate Post-Place & Route Static Timing".
PMSPEC -- Overriding Xilinx file <C:/xilinx/qvirtex2/data/qvirtex2.acd>
with local file <C:/xilinx/qvirtex2/data/qvirtex2.acd>
Loading device for application Rf_Device from file '2v6000.nph' in environment
"xrefdes" is an NCD, version 3.2, device xq2v6000, package mf957, speed -4i
The STEPPING level for this design is 1.
WARNING:TimingToolsC - Command "OpenPCF" failed
Number of warnings: 1
Total time: 6 secs
ERROR: TRACE output file "xrefdes.twr" not found !
Please check if this file is available in the project directory and re-run the process.
Process "Generate Post-Place & Route Static Timing" completed successfully
When is this going to be fixed?
The work-around is to change the device into a Industrial parts, use the TEMPERATURE constraint, and set it to 100.
This problem has been fixed in the latest 9.2i Service Pack available at:
The first service pack containing the fix is 9.2i Service Pack 4.