Stats

  • Locked Locked
  • Replies 1
  • Subscribers 126
  • Views 14574
  • Members are here 0
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

Orderly use of Constraint Manager In Vituoso ?

Giora Karni

I use Virtuoso 6.1.4 GXL for creation of analog schematics and layout.  My question relates to the Constraint Manager.

1.  Is there a way to force the constraints in an orderly manner ? (Sometimes they are conflicting each other or conflicting design rules)

    (For example: I wish to align cells in X axis first, and then in Y axis)

2. Is there a tutorial describing the use of constraints like "Cluster" and "Cluster Boundary" ? and perhapse methodology of use ?

 

Giora

Parents

  • Hi Giora

    1. Currently there is no option to specify the squence of execution of the constraints. Would using "PreserveOrder" option for your alignment constraints resolve your problem?

    2. There is no tutorial for the constraints but some useful info can be found here:

    === Description of new Place and Route objects ===
    $CDSHOME/doc/dfoaAdopt/dfoaAdopt.pdf

    === Constraint methodology ===
    $CDSHOME/doc/constraintsIntro/constraintsIntro.pdf

    Hope that this helps you. : )

    Best regards
    Quek

Reply

  • Hi Giora

    1. Currently there is no option to specify the squence of execution of the constraints. Would using "PreserveOrder" option for your alignment constraints resolve your problem?

    2. There is no tutorial for the constraints but some useful info can be found here:

    === Description of new Place and Route objects ===
    $CDSHOME/doc/dfoaAdopt/dfoaAdopt.pdf

    === Constraint methodology ===
    $CDSHOME/doc/constraintsIntro/constraintsIntro.pdf

    Hope that this helps you. : )

    Best regards
    Quek

Children
No Data

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.