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  1. Xilinx - Adaptable. Intelligent.
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  3. AR# 11119: 31i Virtex-II PAR - Placer fails with "ERROR:Place:1781..." on a DCM application.

AR# 11119

31i Virtex-II PAR - Placer fails with "ERROR:Place:1781..." on a DCM application.

Description

Keywords: ERROR:Place:1781, placer, DCM

Urgency: Standard

General Description:
The placer fails with the following error:

ERROR:Place:1781 - A global clock component <I$117> configured as a selectable mux
is placed in site BUFGMUX7P. This configuration requires that the global clock site
BUFGMUX6S be empty in order to route up both of the inputs. The site BUFGMUX6S has
the global buffer <I$204> placed there. This design is unroutable. Please correct this problem
before continuing.

Solution

This problem is fixed in the latest 3.1i Service Pack, available at:
http://support.xilinx.com/support/techsup/sw_updates.
The first service pack containing the fix is 3.1i Service Pack 8.
AR# 11119
Date 10/21/2008
Status Archive
Type General Article
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