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Want to assign a variable for a "string parameter" of veriloga block

fatcat1206 over 9 years ago

Hi All

In a veriloga block, I define a "string" parameter (test_mode)

When instantiate this veriloga block, I want to assign a variable (testMode) for this "string" parameter.

Then I can use this variable in the ADEXL.

However, when generating the netlist, the "variable" itself has been consider as the value for the veriloga "string" parameter.

below is part of the netlist for defining the parameter for the veriloga block

test_mode="testMode"

The problem is clear, the quotation mark makes the variable to be a string value.

Does anyone knows a solution for this?

Best Regards

fatcat1206 over 9 years ago

Hi All

I have found a solution inside the community

http://community.cadence.com/cadence_technology_forums/f/92/t/27120

below is the content of that post, thanks Soner for the solution, it also works at my place

"Here is a workaround:

1) Ensure that the parameter is defined in the CDF as parseAsCEL=yes

2) Edit object properties of the instance, type pPar("myVariable")

myVariable shows up as a design variable in ADE XL."
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sergeiGorbikov over 4 years ago

1) the CDF parameter must have the property "parseAsCEL=yes"

2) input 'pPar("myVariable")' to the CDF parameter field in the Edit Object Properties window

3) create the design variable "myVariable" in the ADE

works like a charm

doesn't work if 'VAR("myVariable")' is input what is surprising
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Andrew Beckett over 4 years ago in reply to sergeiGorbikov

The expressions on CDF parameters are "AEL" (or "CEL") and not SKILL expressions. pPar() is an AEL function, and VAR is a SKILL function. You can't put arbitrary SKILL functions in CDF parameters - which is why it doesn't work - only a limited set of expressions are possible (because they generally need to be supported by the simulator, with some level of translation of syntax); the AEL language is constrained enough that this is possible; SKILL is too general purpose and powerful that would make translating to something that makes sense in a simulator very hard.

Andrew
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sergeiGorbikov over 4 years ago in reply to Andrew Beckett

Dear Andrew, thank you for clarification
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