Re: gEDA-user: Basic questions from a gEDA & Linux noob

[al davis <ad151@xxxxxxxxxxxxxxxx>]

On Tuesday 14 August 2007, John Doty wrote:
> If you're not adjusting transistor parameters much you could
> make   three terminal .SUBCKT models, each containing a
> single transistor, with the substrate connected to a global
> node. Use model-name= (and maybe file=, depending on how you
> organize things) to associate the symbol with the subcircuit.
> The problem here for me would be that I do mixed signal VLSI
> and I'm often tweaking individual transistor parameters (L,
> W, M). In the subcircuit approach, you need a different
> subcircuit for every geometry.

If you are adjusting transistor parameters, you can use gnucap.  
You can change them any time with a ".param" statement, and 
pass arguments to a .subckt.



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