Re: Help Required

>Hi I have been trying to use electric to
>
>
>  1. Import a GDS-II layout.
>  2. Add some analog circuit (schematic) to it.
>  3. View the combine circuit{sch} + Layout{lay}
>  4. Draw arcs to define connectivity between the schematic and the layout.
>  5. Output the SPICE netlist for the schematic part
>  6. Output the geometrical position of the Individual(Interfacing) pins
>that is where it connects on the layout (Geometrical information about 
>where it connects to the layout)
>  7. Output the topological position of the Individual(Interfacing) pins
>that is where it connects on the circuit (Topological information), i.e.
>to which circuit nodes does the pin connects to.
>
>  I have been able to do till 4 in some-form, but Step 5 is crashing, when
>I am trying to get the SPICE net-list for a combine Layout+Schemetaic
>view.
>
>  But the in-built readable_dump example , in /example/Samples can give the
>SPICE output even if it is a combined form.
>
>So I fear I am missing the link between linking my layout to some
>equivalent schematic view? How to do that in general?
>
>Also how do I get the topological and geometrical information about the
>pins that connects the schematic with the layout.

Some points to consider:

(1) importing GDS into Electric does not give you the connectivity of the 
circuit.  You cannot turn GDS into a Spice netlist directly.

(2) What do you mean when you say that you are generating SPICE from the 
combined Layout+Schematic?  The Spice generator writes only one cell.  Are 
you writing the Layout or the Schematic?

(3) I am willing to examine your ELIB file and figure out why Electric is 
crashing, but only if you are using the latest versions (7.00 for C; 8.00 
for Java).  What version are you using?

    -Steven Rubin