From: Eyyub Can Odacioglu on 28 Jul 2010 07:47
How can I solve this error?
ERROR:Pack:1107 - Unable to combine the following symbols into a
BUF symbol "TXD_OBUF" (Output Signal = TXD)
PAD symbol "TXD" (Pad Signal = TXD)
Each of the following constraints specifies an illegal physical
site for a
component of type IOB:
Symbol "TXD" (LOC=R7)
Please correct the constraints accordingly.