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Magic Mailing List |
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From: Prakash (prakashkuve AT yahoo DOT com) Date: Wed Oct 31 2001 - 15:53:49 EST
Hi Tim, Jeff,
In my opinion, having the DRC ignore
<cellname> would be great. Is it possible to set it up
so that MAGIC would automatically ignore DRC in a cell
in which a particular layer has been drawn by the user
? The layer could a special layer on a different
plane.
"DRC style" suggestion also sounds great.
Best Regards,
Prakash.
--- "Jeff W. Sondeen" <sondeen AT rcf-fs DOT usc.edu> wrote:
>
> i've always wanted a 'drc style' command, like
> 'extract style'. then
> the techfile could have sets of drc rules, with some
> 'quick and dirty'
> (like basic widths/spacings) for large cell
> interactive editing and
> some that are more complete for later full drc'ing,
> and one for the
> extremely slow cif drc commands.
>
> /jeff
>
>
> R. Timothy Edwards writes:
> > Dear Prakash,
> > Normally, when I intentionally violate DRC
> rules, I just leave them
> > there, particularly if there are not many. If it
> seems like I will be
> > doing this a lot and it might cause me to miss
> other, non-intentional
> > errors, I sometimes will make modifications to
> the tech file, for
> > instance, to add a layer which duplicates another
> layer but does not
> > have any DRC rules associated with it.
> > Magic doesn't have any DRC commands to ignore
> certain cells. However,
> > if it looks like a useful idea, I doubt it would
> be very difficult to
> > add a sub-command "drc ignore <cellname>", though
> I tend more toward the
> > opinion that any architecture which intentionally
> violates design rules
> > needs a tech file which can accomodate the
> architecture as a valid
> > layout. However, most people don't like to
> tinker around with the tech
> > files.
> > (Anyone else have an opinion about adding a
> "drc ignore" command?)
> >
> > Regards,
> > Tim
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