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" *Error* plus: can't handle (nil + nil) " during netlisting in icfb

yayla

Hi,

 When I am running simulation with Spectre under ADE, I am getting many errors saying that "*Error* plus: can't handle (nil + nil)" during netlisting and I couldn't start simulation. Before these error messages, I am getting "Terminal "xx" doesn't exist in cell-view "xx" "schematic"". In our project, we are using SOS to keep revision history for schematic and symbol. When I update the workarea, I use SOS and there are 3 options under it: Update(changed cellviews and files existing in workare only), Update(Get new Cells and vies into workarea) and Update(Force all). I started to see these problem after I have updated with Force All option. However, I am not sure whether this is real issue.

As I said before, I am getting this netlisting error sometimes but when netlisting is succesful, simulation(transient,pss etc) runs much fasterthan before and all outputs are zero.

 

Do you have any idea what might be reason?

Thanks,

 Mustafa

Parents

  • Hi, I'm using TSMC 65nm in Cadence for RF design in 60 GHz. I have two questions:

    1- in "spiral_sym_mu_z_9m" the third pad should be connected to ground?

    2- Does this inductor work for 60 GHz? becuase in inductor finder it says that it works up to 20Ghz.

    Thanks 

Reply

  • Hi, I'm using TSMC 65nm in Cadence for RF design in 60 GHz. I have two questions:

    1- in "spiral_sym_mu_z_9m" the third pad should be connected to ground?

    2- Does this inductor work for 60 GHz? becuase in inductor finder it says that it works up to 20Ghz.

    Thanks 

Children
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