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How to make nanoroute understand "USEMINSPACING"

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Hi,

I am facing the following issue for quite sometime. Wonder if anyone is also facing the issue and has a solution?

I have "USEMINSPACING OBS OFF ;" in the technolog lef. However, nanoroute places alot of wire at min spacing to "thick blockage". VerifyGeometry is able to detect these DRC, but nanoroute does not detect the violations. It is quite a pain to clean these violations post-layout.

Anyone also face this issue? Thanks.

Regards,
Eng Han



Originally posted in cdnusers.org by EngHan
Parents

  • Hi,
    Try the following:
    setNanoRouteMode -quiet drouteUseMinSpacingForBlockage false

    If the "thick blockage" is memory, those min_step violations you see maybe false, because LEF doesn't show the real route of the memory, and the blockage you see is not "thick". The final DRC checks are performed with GDS and not with LEF


    Originally posted in cdnusers.org by Stalker
Reply

  • Hi,
    Try the following:
    setNanoRouteMode -quiet drouteUseMinSpacingForBlockage false

    If the "thick blockage" is memory, those min_step violations you see maybe false, because LEF doesn't show the real route of the memory, and the blockage you see is not "thick". The final DRC checks are performed with GDS and not with LEF


    Originally posted in cdnusers.org by Stalker
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