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How to set CDF to let both .subckt and .model work?

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Hi,

    I will create a mos pcell. There are two kinds of simulation model for the mos, one is subcircuit type(.subckt), the other is model type(.model). I want to know how to set CDF parameters for the mos cell in order to make the hspiceD simulator run correctly under both types.

    I know that the simulator parameter namePrefix is "X" for subcircuit type, and "M" for the model type. They are different. If I create only one cell, its parameter namePrefix is either "X" or "M". So I have to create two cells to adapt two types.  When I change the model type from one to the other, I have to modify the mos cell name in the schematic. If the amount of mos is large, it will not be a good idea.

   Is there any way supporting the two types of model to create only one cell to simulate the mos?

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  • Hi,  Andrew

      Thanks very much. It works perfectly now!

      I have another question like above. One cell has only one auCdl setting whose parameters have only one value. Can I create only one cell but export several types of CDL netlist? For example, I have a resistor cell, and the different instances of the cell can be exported to different types like below:

      RR1 net1 net2 10*r1 $[R_NP]

      RR2 net3 net4 10*r1 $[R_PP]

      R_NP and R_PP are controled by another CDF parameter. They are set by modelName in auCdl setting, but one cell has only one modelName value. How to set auCdl or other settings to make that different instances of one cell have different modelname value?

Reply

  • Hi,  Andrew

      Thanks very much. It works perfectly now!

      I have another question like above. One cell has only one auCdl setting whose parameters have only one value. Can I create only one cell but export several types of CDL netlist? For example, I have a resistor cell, and the different instances of the cell can be exported to different types like below:

      RR1 net1 net2 10*r1 $[R_NP]

      RR2 net3 net4 10*r1 $[R_PP]

      R_NP and R_PP are controled by another CDF parameter. They are set by modelName in auCdl setting, but one cell has only one modelName value. How to set auCdl or other settings to make that different instances of one cell have different modelname value?

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