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Illegal hierarchical connection

MontyP

I'm getting huge numbers of the message:

 Warning: Illegal hierarchical connection to internal net between instance......

 

I can't understand why these warning boxes are even there but so many?!

Even when I'm connecting to the pin I still often get the warning box hassles.  

Why would Cadence do this to layout people? It seems to be drastically overdone!

 

MontyP 

Parents

  •  In the CIW enter the command:

     getVersion(t)

     The problem is caused by cell placements that overlap each other and cause hierarchical shorts. In IC613 ISR 17, a limit has been set to 1000 markers for these shorts. It is also available in IC614 ISR 1.

    Please respond directly to the initial question instead of creating a new topic so we can track all the responses together.

     Ted

Reply

  •  In the CIW enter the command:

     getVersion(t)

     The problem is caused by cell placements that overlap each other and cause hierarchical shorts. In IC613 ISR 17, a limit has been set to 1000 markers for these shorts. It is also available in IC614 ISR 1.

    Please respond directly to the initial question instead of creating a new topic so we can track all the responses together.

     Ted

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