Stats

  • Locked Locked
  • Replies 8
  • Subscribers 165
  • Views 16129
  • Members are here 0
More Content
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Adding dynamic shape violates DRC rules

mvonahnen

 For some reason,  a setting has changed which now causes added dynamic shapes to create DRC errors.  I have 32 shapes that don't violate the rules, but I added one to the bottom, with exactly the same parameters and it cause 70+ DRC errors.

  • mvonahnen

     It is not a consistent problem.  But to answer your questions:

     1.  I did this first to create the shape initially.  Twice as many DRCs on the solid shape as with the cross hatched one.

    2.  GND (ground)

    3.  I did not do this and I had to move on, so I created voids where the tool was creating DRC errors.

    I have run into this many times with other tools, Altium was my previous tool.  I am just surprised to see it in Allegro.

  • redwire

    Without seeing the DRC report it's hard to tell what's going on.

    If you're willing to post up the design or PM it I can take a look but there should be NO issue.

    I would try Cadence support as well. 

  • CubbyBear

     Late reply but I noticed this happened to me just yesterday. I was getting DRC errors on dynamic shapes. How the heck? Anyway, I found it was because I had "rough" shapes selected. When I changed the setting to "smooth", all the DRC flags went away.

     

    CB

Cadence Guidelines

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.