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How could i get a Plot with a Xaxis in volt by the ocean script?

OLyonnais

Hello

I'm trying to get a plot by the ocean script but when i observe my 3 outputs signals i have 3 lines (constant) whereas when i lauch that by a classical simulation (interface analog environment) i obtain the correct waveform with the Vn in horizontal scale

Indeed, i think i have a trouble on my Xaxis because in one case (by the analog environment) "Vn" (my sweep variable from 0 to 1.1) is on the X axis and on the other case, i have nothing, the time i think...

 

 ------------------------------------------------------------------------------------------------

ocnWaveformTool( 'wavescan )
simulator( 'spectre )
design(     "/../spectre/schematic/netlist/netlist")
resultsDir( "/../spectre/schematic" )
definitionFile(
    "models.scs"
)
analysis('dc ?saveOppoint t  ?param "Vn"  ?start "1.1"
        ?stop "0"  ?lin "1000"  )

desVar(      "Vn" 1    )
temp( 27 )
run()
selectResult( 'dcOp )
plot(getData("/S") getData("/SB") getData("/BL") )

 

-------------------------------------------------------------------------------------

thank you for your answer and sorry for my "basic" english

Parents

  • Hi Axel,

    Here's a very simple OCEAN script I have using VAR and pv() approaches:

    ocnWaveformTool( 'wavescan )
    simulator( 'spectre )
    design(  "/export/home/users/andrewb/simulation/rcac/spectre/schematic/netlist/netlist")
    resultsDir( "/export/home/users/andrewb/simulation/rcac/spectre/schematic" )
    path( "./models" )
    modelFile(
        '("res.scs" "")
    )
    analysis('tran ?stop "100n"  )
    desVar(   "sup" 3       )
    desVar(   "rval" 1k     )
    desVar(   "cval" 1p     )
    temp( 27 )
    monteCarlo( ?numIters "100" ?startIter "1"
        ?analysisVariation 'process ?sweptParam "None"
        ?sweptParamVals "27" ?saveData nil
        ?nomRun "yes" ?append nil
        ?saveProcessParams t
        ?samplingMethod 'LHS)
    monteExpr( "RT" "riseTime(clip(VT(\"/net5\") 8e-09 1e-07) 0 nil VAR(\"sup\") nil 10 90 nil \"time\" nil nil)" )
    monteExpr( "RVAL" "VAR(\"rval\")" )
    monteExpr( "RVAL2" "pv(\"top-level\" \"rval\" ?result 'designParamVals)" )
    monteRun()

    Both work. In this case I have the variable "sup" (which is constant) which is used within the RT measure. Then I have rval (which has a statistical distribution on it, inside the res.scs model file). You can see two different ways of accessing that variable, with VAR and pv(). Both give a distribution as in the attached picture.

    The pv function is definitely covered in the OCEAN Reference manual (chapter 7, Data Access Commands in IC5141). Didn't check the VAR() function, but it corresponds to the var button in the info tab (in wavescan calculator), or the var button in the AWD calculator.

    Regards,

    Andrew.

Reply

  • Hi Axel,

    Here's a very simple OCEAN script I have using VAR and pv() approaches:

    ocnWaveformTool( 'wavescan )
    simulator( 'spectre )
    design(  "/export/home/users/andrewb/simulation/rcac/spectre/schematic/netlist/netlist")
    resultsDir( "/export/home/users/andrewb/simulation/rcac/spectre/schematic" )
    path( "./models" )
    modelFile(
        '("res.scs" "")
    )
    analysis('tran ?stop "100n"  )
    desVar(   "sup" 3       )
    desVar(   "rval" 1k     )
    desVar(   "cval" 1p     )
    temp( 27 )
    monteCarlo( ?numIters "100" ?startIter "1"
        ?analysisVariation 'process ?sweptParam "None"
        ?sweptParamVals "27" ?saveData nil
        ?nomRun "yes" ?append nil
        ?saveProcessParams t
        ?samplingMethod 'LHS)
    monteExpr( "RT" "riseTime(clip(VT(\"/net5\") 8e-09 1e-07) 0 nil VAR(\"sup\") nil 10 90 nil \"time\" nil nil)" )
    monteExpr( "RVAL" "VAR(\"rval\")" )
    monteExpr( "RVAL2" "pv(\"top-level\" \"rval\" ?result 'designParamVals)" )
    monteRun()

    Both work. In this case I have the variable "sup" (which is constant) which is used within the RT measure. Then I have rval (which has a statistical distribution on it, inside the res.scs model file). You can see two different ways of accessing that variable, with VAR and pv(). Both give a distribution as in the attached picture.

    The pv function is definitely covered in the OCEAN Reference manual (chapter 7, Data Access Commands in IC5141). Didn't check the VAR() function, but it corresponds to the var button in the info tab (in wavescan calculator), or the var button in the AWD calculator.

    Regards,

    Andrew.

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