Answers Database
PLD_DA/EDIF2XNF 5.x: LOC properties placed on pads do not appear in netlist
Record #429
Product Family: Software
Product Line: Mentor
Product Part: pld_da
Problem Title:
PLD_DA/EDIF2XNF 5.x: LOC properties placed on pads do not appear in netlist
Problem Description:
Urgency: Standard
General Description:
Users who have used releases of the DS344 prior to version 5.0, or those
converting v7 designs to v8, may notice that in XACT 5.x, properties placed
on I/O pads do not appear in the resulting XNF netlist. The most common
indication of this problem is that LOC properties on I/O are ignored,
causing unexpected pin placement.
In the XACT 5.0 release, the CLASS=P property was added to the I/O pad
symbols to improve compatiblity with other Mentor tools (most notably, to
improve board-level simulation). One unfortunate side effect of this is
that properties placed on the I/O are now ignored.
See page 4-6 of the XACT 5.0 Mentor Interface User's Guide for more
information.
Solution 1:
The workaround is to place the properties on the net or buffer associated
with the PAD.
See page 4-6 of the Mentor Graphics Interface/Tutorial Guide (previously
known as the Mentor Version 8 Interface User Guide) for more information.
End of Record #429 - Last Modified: 05/24/99 11:40 |
