Article ID: 000082660 Content Type: Troubleshooting Last Reviewed: 06/19/2012

Why is the Invert Signal menu option disabled in the SignalTap II Logic Analyzer?

Environment

    Quartus® II Subscription Edition
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Description

Due to a problem in the Quartus® II software version 11.1 SP2 and earlier, the Invert Signal menu option is disabled in the SignalTap™ II Logic Analyzer.

Resolution

To work around this problem, close the GUI and edit the SignalTap II Logic Analyzer (.stp) file in a text editor. Find the line for the signal you want to invert such as:

<net is_signal_inverted="no" name="<signal name>">

Change the "no" to "yes" and save the file. Re-open the SignalTap II Logic Analyzer GUI. The signal is inverted.

This problem is fixed beginning with the Quartus II software version 12.0.

Related Products

This article applies to 1 products

Intel® Programmable Devices

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