ID:15865 Output port <name> of I/O output FF primitive "<name>" must drive an I/O OBUF primitive, a delay chain primitive, or a pseudo-differential output primitive.
CAUSE: The specified I/O FF
atom is not connected properly.
ACTION: Ensure that the I/O FF
atom is driving the I
port of an OBUF
primitive, the datain
port of a delay chain primitive, or the I
port of a PSEUDO_DIFF_OUT
primitive.