[PCB_FORUM] Re: Making NCs invisible in Orcad?
- From: sjchar3@xxxxxxxxxxxx
- To: icu-pcb-forum@xxxxxxxxxxxxx
- Date: Thu, 01 Dec 2005 17:37:18 -0500
Cheryl.
I would like to know how you do this, I've been placing all pins on sch parts
even the NC's. I use Orcad with Allegro. My understanding was I had to show all
pins.
-----Original Message-----
From: Cheryl Johnson <cheryl.johnson@xxxxxxxxxxxxxxxx>
To: icu-pcb-forum@xxxxxxxxxxxxx
Sent: Thu, 1 Dec 2005 14:01:31 -0700
Subject: [PCB_FORUM] Re: Making NCs invisible in Orcad?
There is not need to even put pin 2 on your symbol. Just put 1 and 3.
Or you can place a no connect X on the pin to get rid of the box and show
the no connect.
Sincerely,
-----------------------------------
Cheryl Johnson, C.I.D.+
Manager
ExcelStor US Office, Engineering Services
Email: cheryl.johnson@xxxxxxxxxxxxxxxx
Tel: (303) 684-7291
Fax: (303) 684-7268
Mobile: (303) 809-5815
-----------------------------------
-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx]On Behalf Of Claude Meyers
Sent: Thursday, December 01, 2005 1:57 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Making NCs invisible in Orcad?
Try This
1. Open the Symbol
2. Say the no-connect is pin 2 of the Sot23, add the following property
to the symbol:
Name Value
NC 2
3. Save the symbol and up date the design
4. Run the netlist, the footprint should now place without the Pin
The format for multiple NC pins is 2,3,4,5 etc.
Claude Meyers
-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Allegro fan
Sent: Thursday, December 01, 2005 12:31 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Making NCs invisible in Orcad?
Hello All,
I do not want no-connect pins to be visible in my Orcad schematics.
Currently, my best solution is to use zero-length lines for pins like
NC1, NC2, NC3, etc. On ICs it's not so bad because its nice sometimes
to be able to verify that a pin is in fact a no connect.
But, having a "you haven't connected a pin" square show up on my diode
symbol is driving me nuts. The schematic symbol looks like a
2-terminal diode, but the footprint is an sot-23. I want the damn NC
pin to go away on the schematic! Any help on this?
Thanks, Ray
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