SPARTAN2 BUFG mapping

[Amontec Team]

Hi all,

How to remap an standard IO to a BUFG in the SPARTAN-II techno.
Webpack gives error when I try.
Are there any webpack option for that?

Best regards,
Larry

 

[CCON]

Have you tried to buffer the clock to a normal IBUF first then re-buffer it to BUFG? <p>I did that in virtex.