gEDA-user: gschem and heterogeneous symbols

[Andy Peters <devel@xxxxxxxxx>]

I was looking through the various gschem for answers to this, but  
I've come up with nothing.

Does gschem support the notion of heterogeneous schematic symbols?   
Consider a dual op-amp chip.  I like the symbol for part A to include  
the power pins, and the symbol for part B to not include the power  
pins.  Another use of this would be where you have an FPGA with  
several logical interfaces (a memory interface, a microcontroller bus  
interface, etc etc).  I find schematics with a big 256-pin part with  
a bunch of wires sticking out of it to be rather messy, so the  
ability to create a custom symbol for each part cleans things up  
considerably.

Anyways, about the closest I can come to this idea is to create a  
pair of symbols for my dual op-amp.  One symbol has the power pins;  
the other doesn't.  Both symbols get the same ref des.  I'm not sure  
how to set slot numbers and slotdef.

If this feature doesn't exist, then consider it a feature request!

-- a



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