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From: R. Timothy Edwards (tim AT stravinsky DOT jhuapl.edu)
Date: Mon Oct 29 2001 - 10:37:12 EST

  • Next message: Jeff W. Sondeen: "RE: MAGIC DRC question" 

    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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