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AR# 12157

4.1i Virtex-II PAR - Router behavior changed so that it will quit if design is "impossible" to route.

Description

Keywords: impossible, router, route, XIL_ROUTE_CONTINUE_ON_DESIGN_IMPOSSIBLE

Urgency: Hot

General Description:
For version 4.1i, the router behavior has changed so that it will stop on timing or routing impossible cases.

The environment variable XIL_ROUTE_CONTINUE_ON_DESIGN_IMPOSSIBLE can be used to return the to 3.1i behavior.

Solution

For PCs:
set XIL_ROUTE_CONTINUE_ON_DESIGN_IMPOSSIBLE=1

For Workstations:
setenv XIL_ROUTE_CONTINUE_ON_DESIGN_IMPOSSIBLE 1

NOTE: This environment variable does not work in all cases. A fix for this problem will be available in the second 4.1i Service Pack, due out in late October, 2001.
AR# 12157
Date Created 08/29/2007
Last Updated 10/22/2008
Status Archive
Type General Article