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Autorouting

Neha Anu

Hi all,

I'm routing 8 signals from the BGA having relative propagational delay and propagational delay. I am trying to do it in specctra autorouter by giving length matching constraints given with a toal propagation delay in mils which is less than manhattan distance all these routing is done with the usage of .do files.But the group is not matching moreover the total delay constraint is not meeting.The autorouter is taking some other way to route the signals.It is not considering as a bus,even though i grouped them into bus.Can anyone give a solution to this??

 

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  • redwire

     Post up a zip file of the board with explicit instructions on what you are doing (or post the specctra.did file with it) and I can take a look.  There are many reasons it won't work when the setup is wrong.

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  • redwire

     Post up a zip file of the board with explicit instructions on what you are doing (or post the specctra.did file with it) and I can take a look.  There are many reasons it won't work when the setup is wrong.

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