[PCB_FORUM] Re: Making a part pin and gate swappable
- From: "Edwards, Keith" <keith.edwards@xxxxxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Tue, 26 Jul 2005 21:54:10 -0700
Set up the chips.prt correctly when creating the schematic symbols and
you will have the ability to swap inside of Allegro while maintaining
the ability to back-annotate.
You need to have the 'PIN_GROUP' value the same for each pin that you
want to swap within a group. In V15.2 Concept, you now have the ability
to swap within each schematic section. So, you could set the
'PIN_GROUP' values based on how you would like to control the swaps in
Allegro. You could set up multiple pin groups to define swap groups on
a part.
Here is a snapshot of how the chips file should look.
FILE_TYPE=LIBRARY_PARTS;
TIME=' Created/Modified on Tuesday, July 26, 21:41:33 2005' ;
primitive 'EXAMPLE','EXAMPLE_BGA';
pin
'NAME1':
PIN_NUMBER='(0,0,A1)';
UNKNOWN_LOADING='TRUE';
PINUSE='UNSPEC';
NO_LOAD_CHECK='BOTH';
NO_IO_CHECK='BOTH';
ALLOW_CONNECT='TRUE';
PIN_GROUP='1';
'NAME2':
PIN_NUMBER='(0,0,A2)';
UNKNOWN_LOADING='TRUE';
PINUSE='UNSPEC';
NO_LOAD_CHECK='BOTH';
NO_IO_CHECK='BOTH';
ALLOW_CONNECT='TRUE';
PIN_GROUP='1';
end_pin;
body
CLASS='IO';
PHYS_DES_PREFIX='U';
JEDEC_TYPE= 'EXAMPLE';
PART_NAME='EXAMPLE';
end_body;
end_primitive;
END.
-Keith
-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Kevin McCowan
Sent: Tuesday, July 26, 2005 8:40 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Making a part pin and gate swappable
Amin Aslan wrote:
> Does anyone know how to fix the pstchip.dat file so I can make a bga
pin and gate swappable ? thanks
>
I am sure lot's of people do.
What I do, however, is to get a part that can do what
I want done already and steal the syntax from it and
put it into the new part I want to make.
Or, you could read the help on how to make a part
that has the pin and gate swap functions.
I haven't done one in a while but I remember
it was not a monumental task.
If you figure it out yourself the chances are
that you will remember the next time you need
to configure a device in the future.
Good luck,
Kevin McCowan
Sr. PCB Designer
TSI Telsys
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