Re: gEDA-user: Different slot types within on symbol

[Oliver King-Smith <oliverks1@xxxxxxxxx>]

   Peter,
   Different symbols for each slot is no problem.  I will try that
   tomorrow.
   I was messing around with the slot=1 slot=2 trying to make things work
   and getting no where.  Does the slot keyword do anything other than
   define the beginning of a slot?
   Oliver
     __________________________________________________________________

   From: Peter Clifton <pcjc2@xxxxxxxxx>
   To: gEDA user mailing list <geda-user@xxxxxxxxxxxxxx>
   Sent: Sun, November 21, 2010 6:30:27 PM
   Subject: Re: gEDA-user: Different slot types within on symbol
   On Sun, 2010-11-21 at 16:52 -0800, Oliver King-Smith wrote:
   > Is it possible to create a symbol with two types of slots.  For
   >    example, in a 4 OR gates logic chip, one slot type would be the OR
   >    gate, while the other slot type would be the power connections.  I
   see
   >    people typical wire the pins that are not part of a slot to nets,
   but
   >    that seems to hide them.  I prefer to explicitly see the power on
   my
   >    chips so I can check the decoupling strategy.
   >    If you have any suggestions or examples please let me know.
   >    Thanks in advance
   >    Oliver
   Not exactly, but you can have multiple symbols all instantiated with
   the
   same refdes= to build up your part.
   You can have one symbol for the OR gate parts, another for the power.
   See for example 74power-1.sym in the library. That is a slightly bad
   example though, as all the 74* symbols in the library also have hidden
   "net=" attributes which wire up their power pins. The idea is solid
   though.
   Best regards,
   --
   Peter Clifton
   Electrical Engineering Division,
   Engineering Department,
   University of Cambridge,
   9, JJ Thomson Avenue,
   Cambridge
   CB3 0FA
   Tel: +44 (0)7729 980173 - (No signal in the lab!)
   Tel: +44 (0)1223 748328 - (Shared lab phone, ask for me)
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