ERROR (SPCRTRF-15177): PSS analysis doesn't support behavioral module components with hidden states found in the component

[SaFo]

Hello,
I intend to perform PSS analysis analysis on a current-controlled oscillator (CCO). However, I have encountered three errors:

1. ERROR (SPCRTRF-15177): PSS analysis doesn't support behavioral module components with hidden states found in component 'cpoly_ahdl'. Skipped.
2. ERROR (SPCRTRF-15177): PSS analysis doesn't support behavioral module components with hidden states found in component 'modn_ahdl'. Skipped.
3. ERROR (SPCRTRF-15177): PSS analysis doesn't support behavioral module components with hidden states found in component 'modp_ahdl'. Skipped.

'cpoly_ahdl,' 'modn_ahdl,' and 'modp_ahdl' represent the capacitor, NMOS, and PMOS transistors used in the CCO, respectively. Could you please provide any recommendations to address this issue?
Your assistance is greatly appreciated.

 

[dick_freebird]

I recommend that you try regular SPICE / Spectre models for
these elements - which any PDK ought to have.

Perhaps the issue is with the switch-view, stop-view lists
priority-order putting a veriloga view before a spectre
view, so you get the behavioral.

Now how a capacitor would have a "hidden state" is a question.
One you might answer by reading the verilog.va model if you
like parsing veriloga.

With all these elements represented behaviorally, you must
wonder just how accurate / relevant any result might be.
Being as behavioral modeling is usually about shortcuts for
efficiency in simulation, not ultimate fidelity.