[Xcircuit-dev] RE: XCircuit questions/requests

[R. Timothy Edwards]

Dear Svenn,

> have you thought about a tree view for organization of schematic hierarchies? 
> I find the flat overview with Shift-P a bit problematic when handling deeper 
> 3+ level hierachies.

The easiest way to handle this would be using the BLT package for Tcl, the
same way the tree view is created for magic in the "cell manager" popup
window.  I may need to add some Tcl commands to xcircuit for querying the
instances used in an object, and their related schematics, etc., but it
should not be very difficult.

> Is it possible to attach parameters or labels to a wire in a schematic. 
> Reason: When designing a specific voltage regulator I want to make sure that 
> none of the interconnect routing wires are done on metal2, and I would like 
> to see such a text show up in magic somehow to warn me.

I'm not sure how you intend to get the information from the schematic
into the layout.  Right now, the only interaction between them (unless
you've written scripts to do more) is through LVS.  Anyway, the answer
is yes.  You can attach a label to a wire, which then sets the net name
of that wire.  The label can then contain parameters.  With recent changes
in the Tcl-based version of XCircuit, you can even bury Tcl procedure
calls in the parameter, so you can do pretty much anything you want with
it.

					Regards,
					Tim


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