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netclass members deleted when netlist loaded

TDuffy

Hi,

I am having trouble with a specific schematic from a new customer.  Whenever I regenerate the net list and load it into Allegro, it deletes all of my single-ended net members in my net classes in the constraint manager.  It does not delete any diff pair members of the net class.  Is there a way to disable what is writing over my net classes?  There are no special constraints that I am able to find in the schematic. 

Is there a way to disable the constraint manager on the schematic? 

Thanks for any advice.

Terrie

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    Hi Terrie,

    Do you notice the net classes change in your schematic or in the layout? I mean .. do you see it after generating the netlist in the schematic or after importing it to the layout in PCB Editor? And also, which tools are you using for both your schematic and layout? can you share a screenshot of them when you go to Help > About?

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  • 0

    Hi Terrie,

    Do you notice the net classes change in your schematic or in the layout? I mean .. do you see it after generating the netlist in the schematic or after importing it to the layout in PCB Editor? And also, which tools are you using for both your schematic and layout? can you share a screenshot of them when you go to Help > About?

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