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AR# 34880

10.1 Project Navigator - Adding an HDL source file with long strings causes an unknown exception


This is a known issue with xtclsh in ISE 10.1 software. It will occur when xtclsh parses files that contain more than 4,150 characters on a given line.

This issue occurs only on Windows. The problem does not occur on Linux.

The issue has been fixed in ISE 11 software.

To work around this issue in ISE 10.1 software, use HDL techniques to write strings in shorter form. For example, to write a 4156-bit wide vector of zeros, use the following HDL syntax:

Init_Value => conv_std_logic_vector(0, 4156)

AR# 34880
Date 07/26/2010
Status Archive
Type General Article
  • ISE Design Suite - 10.1
  • ISE Design Suite - 10.1 sp1
  • ISE Design Suite - 10.1 sp2
  • ISE Design Suite - 10.1 sp3
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