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Trigger callbacks automatically for a schematic pcell

prasadtammana

Hi, 

I've created a schematic pcell which has Width and Length as the parameters. Based on Length of the instance, I want to calculate another parameter called MOM_fingers. So I edited the CDF of the pcell and added a SKILL procedure as callback to calculate MOM_fingers based on Length. Every time I change the Length of the instance, I'm using CCSinvokeCdfCallbacks(geGetEditCellView()) to trigger the callbacks which is then updating the MOM_fingers. 

But, I want the callbacks to be triggered automatically, just like the way a transistor's total width gets updated immediately after changing the finger width of the transistor. Could someone let me know how to trigger the callbacks immediately after I update the Length of the pcell without using CCSinvokeCdfCallbacks(geGetEditCellView()). 

Thanks,

Prasad

Parents

  • If I've understood you properly, you have a cell (let's call it "prasadcell") which has parameters Width, Length and MOM_fingers. You've added a CDF callback on the Length parameter for the CDF of prasadcell which computes MOM_fingers (presumably sets cdfgData~>MOM_fingers~>value)? If so, the callbacks should be triggered when you create instance or edit properties on an instance of prasadcell - there's nothing extra you need to trigger it - that's how CDF callbacks are supposed to work.

    If that's not happening, something must be wrong with your setup, which is going to be hard to diagnose without seeing it. Perhaps you should contact customer support?

    Regards,

    Andrew

Reply

  • If I've understood you properly, you have a cell (let's call it "prasadcell") which has parameters Width, Length and MOM_fingers. You've added a CDF callback on the Length parameter for the CDF of prasadcell which computes MOM_fingers (presumably sets cdfgData~>MOM_fingers~>value)? If so, the callbacks should be triggered when you create instance or edit properties on an instance of prasadcell - there's nothing extra you need to trigger it - that's how CDF callbacks are supposed to work.

    If that's not happening, something must be wrong with your setup, which is going to be hard to diagnose without seeing it. Perhaps you should contact customer support?

    Regards,

    Andrew

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