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gEDA-user: symbol creation / spice netlisting



Hello,

I tried to create a gschem-symbol for an operational amplifier (MAX427).
I wanted to follow the guidelines given in the "symbol creation guide"
so in stead of providing power pins I added the appropriate
net-attributes. The device has two pins used for balancing the offset.

I experienced two problems while using the symbol:

1. The spice-netlister "gnetlist -g spice-sdb" does not list the
power-pins which are essential for the .SUBCKT-file to work. I
downloaded it from the Maxim-Homepage.

2. The spice-netlister lists the offset-balancing pins that are not
supported by the model-file that I downloaded.

I see several possibilities to fix the two problems like:

-providing power pins
-deleting the offset pins (that I don't use anyway)
-fixing the spice-netlist by hand

But none of the solutions really satisfies me. What is the "official"
solution to the two problems? How can I get one(!) gschem-symbol for the
device that works with the spice-netlister as well as with the pcb-tool
(eventually using the offset-pins)?

Thank you very much for every help and have a happy new year!

Lars Friedrich

student -- Germany