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AR# 58535

2013.4 Vivado - VHDL parser could crash if special accents are used in the port definition


This issue has only been reported in VHDL files.

The issue occurs when the ports of a module are declared with the "in"/"out" attributes using French/German/Spanish/Finnish/Dutch special accents as in the example below:



This can cause Vivado Design Suite to shut down suddenly.


This issue has been reported in Windows systems and VHDL files only.  

Users should avoid the use of Non-ASCII characters in HDL code.  

However, Xilinx is investigating methods to better handle these occurrences.

When trying to re-open the project after it has been saved, it will crash again.

To work around this problem, please follow the below procedure in the Tcl console or modify the source file(s) containing the Non-ASCII  character with a text-editor:

vivado -mode tcl 
open_project <project_name>.xpr
set_property source_mgmt_mode None [current_project]
This issue has been fixed in Vivado 2014.1.
AR# 58535
Date Created 11/25/2013
Last Updated 06/20/2014
Status Active
Type Known Issues
  • Artix-7
  • Kintex-7
  • Virtex-7
  • Vivado Design Suite