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spf in cadence

huadel

Hello,

I am trying to simulate inverter in cadence, with a spf netlist generated by starRC (attached),

I tried the procedures suggested in this forum :

community.cadence.com/.../tip-of-the-week-how-to-simulate-a-subcircuit-netlist-with-spectre-in-ade

I use the symbol I created to include the spf netlist inside cadence schematic testbench for an inverter,

The simulation goes without errors but the netlister doesn't connect the nets of the spf file to the schematic netlist in cadence, as if it interprets cadence schematic netlist alone and the spf netlist alone and doesn't connect them , so the result is a floating spf netlist ,

Is there an additional procedure I should do to let spf netlist connects to the remaining netlist in the schematic testbench?

- I attached the spf file generated by StarRC (inv3.spf), and the one I modified to include the pins (inv3_pex.spf), and the testbench netlist,

note that I created a symbol cell (inv3_pex_ct) to include the spf netlist symbol cell (inv3_pex) , and I added the spf netlist (inv3_pex.spf) in the model libraries as suggested in the blog,

Thank you

ps: how can I attach the files? there is not attachment buttons ?

Parents

  • Tony,

    It's not entirely clear to me what your problem is. I'm guessing that you have a mismatch between the bus delimiter used in the pins of the subckt definition netlisted by ADE and the bus delimiter in the .SUBCKT in the DSPF? An example of each would help.

    I think you might need to specify bus_delim="_ <>" (a space between the two) - this allows you to specify the bus delimiter on the spectre side versus on the DSPF side.

    I'd say taking this up with customer support would be best, as really we need to see your data. It's possible that something might need fixing too.

    Regards,

    Andrew.

Reply

  • Tony,

    It's not entirely clear to me what your problem is. I'm guessing that you have a mismatch between the bus delimiter used in the pins of the subckt definition netlisted by ADE and the bus delimiter in the .SUBCKT in the DSPF? An example of each would help.

    I think you might need to specify bus_delim="_ <>" (a space between the two) - this allows you to specify the bus delimiter on the spectre side versus on the DSPF side.

    I'd say taking this up with customer support would be best, as really we need to see your data. It's possible that something might need fixing too.

    Regards,

    Andrew.

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No Data

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