[Magic-dev] minimum area requirements

[R. Timothy Edwards]

Dear Clint,

> Is there a way to specify a minimum area requirement in a magic tech
> file?  I read the documentation on the web and I couldn't find any
> information about this.

For a small are or for an entire chip?  For a small area, there's the
"area" DRC rule.  This was part of the "tutwrl1" tutorial, which is
not really a tutorial at all, and should have been merged into the
Maintainer's Manual #2 long ago.  I finally did this a few days ago.
Look on http://opencircuitdesign.com/magic/, click on "Technology Files",
and then "The Magic Technology File Manual".

For whole chips, I don't have a way to check vs. a requirement (you
could write a Tcl script to do this), but you can do the command
"cif coverage <layer>" to check the percentage coverage of a specific
layer (e.g., "cif coverage *m2").

					Regards,
					Tim

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