Stats

  • Locked Locked
  • Replies 4
  • Subscribers 144
  • Views 2178
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

how to search for specific devices/models into spectre netlist?

marcelpreda

 Hi there,

 I want to know if it is possible with SKILL functions to scan a spectre netlist for specific devices.

We have a spectre netlist file and we want to search for devices of a specific model or devices with specific properties (e.g. w < 0.XX um ).

If such devices/instances are found  to warn the deigner:

            In cell ABC we found device D (model=model_X, w=0.zz )

And based on those info he shoudl decice if really want to run the simulation of not.

 

 Do we have such things in SKILL?

I want to run it from command line, some other scripting is OK if SKILL has no such functionality.

Best Regards,

Marcel

Parents
  • marcelpreda

     Hi Andrew,

    The assert and checklimit statements solved a part of my problem: I can find the small devices.

    But I'll need one more thing: I want to not allow some specific devices in the netlist, or at least to provide a warning if they exists.

    The problem is that those devices are defined as "inline subckt.."

    E.g.

    inline subckt phx (d g s b)
    parameters
    *
    + w             = 1
    + l             = 1
    ...

    ends  phx

    And I want to warn the designer if the the netlist I have at least one phx `device'.

    I've try to use something like:

    // check for unwanted devices

    // 0.01u is below minimum allowed by technology

    notAllowedModel assert mod=phx param=w max=0.01u message="model phvt not allowed"

    But I get next warning in the log: Specified model `phx' was not found. Assert is ignored.

    Of course I can write a script in any other languge and parse the ascii file,but we have the include statements.Files that include other files that include other files that... and so on. I guess that if there is a buitin command in spectre it will be much faster.

    Best Regards,

    Marcel

Reply
  • marcelpreda

     Hi Andrew,

    The assert and checklimit statements solved a part of my problem: I can find the small devices.

    But I'll need one more thing: I want to not allow some specific devices in the netlist, or at least to provide a warning if they exists.

    The problem is that those devices are defined as "inline subckt.."

    E.g.

    inline subckt phx (d g s b)
    parameters
    *
    + w             = 1
    + l             = 1
    ...

    ends  phx

    And I want to warn the designer if the the netlist I have at least one phx `device'.

    I've try to use something like:

    // check for unwanted devices

    // 0.01u is below minimum allowed by technology

    notAllowedModel assert mod=phx param=w max=0.01u message="model phvt not allowed"

    But I get next warning in the log: Specified model `phx' was not found. Assert is ignored.

    Of course I can write a script in any other languge and parse the ascii file,but we have the include statements.Files that include other files that include other files that... and so on. I guess that if there is a buitin command in spectre it will be much faster.

    Best Regards,

    Marcel

Children
No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.