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AR# 29913

14.7 CPLDFit - FATAL_ERROR:Cpld:Portability/export/Port_Main.h:127:1.127 when connecting BUFGTS to OBUFT


Why do I receive a fatal error in Fit when I try to connect a BUFGTS to either an OBUFT or an OBUFE in ISE 14.7 and earlier versions?

FATAL_ERROR:Cpld:Portability/export/Port_Main.h:127:1.127 - This application has discovered an exceptional condition from which it cannot recover. Process will terminate. For more information on this error, please consult the Answers Database or open a WebCase with this project attached at http://www.xilinx.com/support.


This is a bug in the tools. to work around the issue, add the -noopendrain switch to the Other CPLD Fitter Command Line Options in the Fit Properties.

AR# 29913
Date 07/17/2017
Status Active
Type General Article
  • CPLD Device Families
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