Stats

  • Locked Locked
  • Replies 5
  • Subscribers 144
  • Views 21626
  • 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

Editing CDF parameter properties for a Pcell

ahamlett

 The only documentation on this I have found is from Cadence Design Framework II SKILL Functions Reference (skdref.pdf) on page 698:

Attribute     Set?  Type   Description

valueType   no     string  The type of the value of this property:
                                     “boolean” Boolean
                                     “fileName” file name string
                                     “float” Floating-point integer
                                     “hierProp” Property list
                                     “ILExpr” IL expression string
                                     “ILList” IL list
                                     “int” Integer
                                     “NLPExpr” NLP expression string
                                     “string” String
                                     “time” Time-valued string

I want to be able to force the display name or prompt of pcell parameters by editing the pcell's base cdf:

cdfCreateParam(cdfCreateBaseCellCDF(ddGetObj(libName cellName))
    ?name            "myParam"
    ?prompt          "My Param's Prompt"
    ?defValue        car(layerList)
    ?type              "ILList"
    ?storeDefault    "yes"
)

However I keep getting this error when loading the pcell:

*Error* icGetCurrentWindow: invalid cdf parameter type - "ILList"

I've tried ilList and ILList as the parameter type. Why isn't this working?

 BTW, what does CDF stand for? Cadence Design Framework, Cell Database Function, etc?

Edit: Found out what CDF stands for... Component Description Format.

Also, I am trying to change the value of parameters on the instance of a pcell... anyone know how to do that?
I would need to know the object of the parent which instances the pcell.

Parents

  • I think CDF stands for "Component Description Format".

    You have a legitimate question that we have been asking Cadence for years. The short answer is that CDFs do not support "lists" even though Skill is a "list-based" language. You will have to convert your value to a string and complain to Cadence to finally fix this painful limitation on CDFs.

    -Derek

Reply

  • I think CDF stands for "Component Description Format".

    You have a legitimate question that we have been asking Cadence for years. The short answer is that CDFs do not support "lists" even though Skill is a "list-based" language. You will have to convert your value to a string and complain to Cadence to finally fix this painful limitation on CDFs.

    -Derek

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.