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AR# 7911

FPGA Editor 2.1i: When routing Probes, It appears to freeze, Not Responding, takes a long time

Description

Keywords: fpga editor, crash, freeze, not responding, long time

Urgency: Standard

Problem Description:
When I am trying to set a probe in FPGA Editor, my
display appears to freeze. WinNT's task manager
says "Not Responding". This continues after the
probe window comes back from the probe selection
screen. You are unable to select anything in the
window. Why?

Solution

This most often occurs in Virtex and very full designs
that use a PCF file. The program has not frozen, it just
takes a long time. If you let it sit for a while
(depending on the speed and memory of computer), the
window will come back with the correct probe routed
to the pin.

Workaround: Remove the PCF file from the directory
to another, or do not specify a PCF file when opening
FPGA Editor. The PCF causes the Editor to route
based upon the timing and physical constraints for the
design
.
AR# 7911
Date Created 10/22/1999
Last Updated 05/30/2002
Status Archive
Type General Article