Re: gEDA-user: gcshem to magic

[al davis <ad252@xxxxxxxxxxxxxxxx>]

On Sunday 01 August 2010, Oliver King-Smith wrote:
> I have some analog circuits in gschem that I want to layout
> in the magic  vlsi  tool.  Is there a good way to go from
> gschem to magic?

Not that I know of.  It is a rather difficult task to program.

Magic is really a very simple chip layout tool, completely 
manual.  It doesn't understand things like transistors.  It's 
all polygons.  You place regions of diffusion, poly, etc.  Where 
poly overlaps diffusion a transistor is formed.

> For  example it would be nice to generate transistors
> automatically (give w,  l,  and m) and then add port names
> for S,D,G,B.  Likewise it would be  nice to produce a magic
> compatible netlist, so the interactive router  can then be
> used once the cells are placed.
> 
> Please let me know if there is a recommended way of doing
> this?
> 
> If you think there is a better way to tackle this problem
> please let me know.

Perhaps you should consider a higher level tool, such as 
electric, which does understand the concept of cells.



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