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3.1i Virtex-E PAR - Placer crashes while handling range constraints on IOBs.
Keywords: PAR, place placer, crash, range, IO, IOB
Placer crashes while handling range constraints on IOBs.
This problem is an order of processing issue that resultes in the range
constraints targeting sites that were already used.
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 4.