[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
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