Article ID: 000079443 Content Type: Troubleshooting Last Reviewed: 01/07/2013

Why does the Quartus® II software freeze when I add a signal to the SignalTap II Logic Analyzer?

Environment

  • Quartus® II Subscription Edition
    • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description Due to a problem in the Quartus® II software version 12.0 SP2 and earlier, the Quartus II GUI may freeze when adding signals in the SignalTap™ II Logic Analyzer if your quartus2.qreg file contains an invalid statement.
    Resolution

    To work around this problem, open quartus2.qreg and remove any lines that contain the text "Node_finder". The quartus2.qreg file can be found in the following location:

    • Windows 7: C:\users\<username>
    • Windows XP: C:\Documents and Settings\<username>
    • Linux: ~/.altera.quartus 

    This problem is fixed beginning with the Quartus II software version 12.1.

    Related Products

    This article applies to 1 products

    Intel® Programmable Devices

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