My Virtex-II Pro X design has multiple GT10 instantiations which share a BREFCLK input. When I run MAP, I receive the following error on all but one instance of my GT10s.
ERROR:MapLib:555 - BREFCLKPIN pin of transmitter symbol "mgt_7" is not connected to an IPAD.
ERROR:MapLib:555 - BREFCLKNIN pin of transmitter symbol "mgt_7" is not connected to an IPAD.
The same BREFCLK pad drives all the instances, so this error seems incorrect. How do I work around this?
The problem is related to tracking the net through hierarchy. This will be fixed in a future software release.
To work around it in the current software, either move all your GT10 components to one level of hierarchy or use the -ignore_keep_hierarchy switch in MAP.