[PCB_FORUM] RE : Concept / Allegro Pin Swapping
- From: "Jean-Charles TEYSSIER" <jcteyssier@xxxxxxxxxxxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Sat, 10 Dec 2005 07:54:40 +0100
Yes, concept use pin numbers for swapping (have a look at your chips.prt file,
it is defined here).
For me, pin label is just a "free text".
What have you give for the value of pin_label? If this is the signame of the
wire attached, not
a good idea for swapping; also i know that "IO_17" is not usefull for fpga's
(is your chip fpga?)
Be aware that if the chip must be "frozen" at the end of your design
(fpga's...) you will heave an action for it.
Good day,
Jean-Charles (France)
-------- Message d'origine--------
De: icu-pcb-forum-bounce@xxxxxxxxxxxxx de la part de Vince Di Lello
Date: ven. 09/12/2005 22:43
À: icu-pcb-forum@xxxxxxxxxxxxx
Objet : [PCB_FORUM] Concept / Allegro Pin Swapping
Good afternoon all,
We are using Concept here and have a chip with swappable I/O pins. The
engineer has set up the IC with swappable pins for the I/O pins and he
has created his part with pin numbers on the outside of the schematic
part and "pin label" text on the inside of the schematic part. The
problem we are having is that if I swap pins on that device on the board
design, back annotate the swapping to the schematic the physical wire on
the schematic page did NOT move, the PIN NUBERS get swapped to reflect
the true layout of the PCB but the PIN LABELS did NOT move. So we end up
with pin numbers on the outside of the schematic part that do not align
properly with pin labels on the inside of the schematic part. Do we have
something set up incorrectly or is this a limitation of Concept, because
it is my understanding that Mentor ePD swaps pins based on the "pin
label" and the pin number follow the swap so that the two items are
always in sync.
Any help out there? Please and thanks in advance.
Vincent Di Lello, CID+
Senior CAD Designer
Kaleidescape Canada, Inc.
vdilello@xxxxxxxxxxxxxxxx
(v) 519.772.6418
(f) 519.772.6401
(c) 519.835.4477
www.kaleidescape.com
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