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AR# 32359

11.1 ISE Simulator (ISim) - ISim GUI hangs or freezes frequently while performing some simulator tasks

Description

The ISim GUI hangs or freezes when I attempt to scroll down the list in the Instances and Processes pane, or when I use the 'Search in Objects" feature.

How can I resolve this problem?

Solution

This is a known issue with ISim in ISE Design Suite 11.1. This issue has been fixed in ISE Design Suite 11 Update 2 (11.2). Please download and install the latest ISE Design Suite version from the Download Center at: http://www.xilinx.com/support/download/index.htm.

The ISim GUI might hang or freeze when attempting to display signals with "null" value on the wave window, or when using the "show value" Tcl command in the Tcl console.

To resolve this issue, refrain from tracing or displaying the value of a null VHDL object.

This issue is currently under investigation in order to better address this condition in a future release of the ISE Simulator.

Linked Answer Records

Associated Answer Records

Answer Number Answer Title Version Found Version Resolved
33381 ISE Design Suite 11 - ISE Simulator (ISim) Known Issues N/A N/A
AR# 32359
Date Created 04/10/2009
Last Updated 12/15/2012
Status Active
Type General Article