11.4/11.5 CORE Generator - Generating an iBERT IP core results in "_wincg.exe has encountered a problem and needs to close" error message

AR#	33933	Search For Another Answer
Topic	CORE Generator
Last Updated	10/14/2010
Status	Active

Description

When I attempt to generate the IBERT Virtex-6 GTX FPGA (ChipScope Pro - IBERT) 2.01.a IP core in CORE Generator 11.4, a pop-up error message occurs similar to the following: 

" _wincg.exe has encountered a problem and needs to close. We are sorry for the inconvenience." 

Selecting Close or Debug closes the pop-up box and the CORE Generator software.

Solution

This error can occur if the user opens the CORE Generator tool from a directory inside the $XILINX directory structure. 

The following circumstances might result in an error: 

• You double-click on the "coregen.exe" executable from Windows Explorer. 
• The Start -> CORE Generator -> Properties "Start in" setting is set to the XILINX install directory. For example, "coregen.exe" is located at C:\xilinx\11.1\ISE\bin\nt\wincoregen.exe and "Start in" is set to C:\Xilinx\11.1\ISE. 
• You move to the Xilinx directory in a command shell using the cd command before invoking "coregen.exe".

If starting the CORE Generator tool outside the $XILINX install directory does not resolve the issue, the following changes have resolved the issue in specific cases: 

• Try setting the following environment variable:  JAVA_TOOL_OPTIONS="-Xss16m"
  For instructions on how to set an environment variable, see (Xilinx Answer 11630). 
•  Change the JAVA memory allocation; see (Xilinx Answer 20708).