Answers Database
XPLA : Warning - wired or in net = <signalname>
Record #7778
Product Family: Software
Product Line: CoolRunner
Product Part: XPLA Schematic
Product Version: 3.30
Problem Title:
XPLA : Warning - wired or in net = <signalname>
Problem Description:
Urgency: Standard
General Description: This warning occurs when the user attempts to take two signals and tie them to
gether. Even if the two signals are both tri-stated, this warning will occur. Two signals can not
be tied together via tri-state internally because each macrocell has only one tri-state buffer which
can either
go directly to an output pad or back to the interconnect.
Solution 1:
Instead of tri-stating the two signals, mux them together using the
tri-state select as the mux select.
Solution 2:
Send the two tri-stated signals to two separate output pads and then tie the two pins together exter
nally.
End of Record #7778 - Last Modified: 10/14/99 17:58 |
