Plot Waveform In Specified Window

OCEAN Script Template

;; initialization
(setq designName "./spectre/schematic/netlist/netlist")
(setq resultPath "./spectre/result")
(setq modelName "model.lib")
(setq saveFile "save.scs")
(setq corners list("ss" "ff" "tt"))


;; run script
ocnWaveformTool('wavescan )
simulator('spectre )
design(designName)
analysis(
        'tran
        ?stop "8.814u"
        ?errpreset "conservative"
)
desVar(  "VRP" 1.2 )
desVar(  "VRN" 0 )
desVar(  "AVDD12" 1.2 )
envOption(
'userCmdLineOption  "+aps +parasitics +mt=20"
)
option(
        'nthreads  "30"
        'multithread  "on"
        'temp  "85"
)
saveOption('nestlvl "1")
saveOption('save "selected")

foreach(corner corners
        resultsDir(sprintf(nil "%s/%s" resultPath corner))
        modelFile(
                list(modelName sprintf(nil "%s" corner))
                list(modelName sprintf(nil "res_%s" corner))
                list(modelName sprintf(nil "mom_%s" corner))
                list(saveFile)
        )
        paramAnalysis(
                "temp"
                ?values '(-40 -20 0 55 85 125)
        )
        paramRun()
)

winID=newWindow()
clearAll()
graphicsOff()
foreach(
        corner corners
        openResults(sprintf(nil "%s/%s" resultPath corner))
        selectResults('tran)
        (setq V VT("OUT"))
        plot(V)
)
graphicsOn()

Draw Waveform From Corner Simulation Result

winID=newWindow()
corners = list("ss" "ff" "tt")
resultPath="./opamp_stb_tb/spectre/PVT"

clearAll()

; Note: 
; graphicsOff()/graphicsOn() helps eliminates the redraw for each plot.
; When graphicsOn() is called, the completed plot appears.
graphicsOff()
foreach( 
        var  
        corners
        openResults(sprintf(nil "%s/%s" resultPath var))
        selectResults('stb_margin)
        plot(getData("phaseMargin"))
)
graphicsOn()

_adeCreateROF

_adeCreateROF("~")

Corner Simulation Using OCEAN

designName="blahblah/spectre/schematic/netlist/netlist"
resultPath="blahblah/spectre/PVT"
modelFileName="blahblah/model.lib"

ocnWaveformTool('wavescan )
simulator('spectre )
design(designName)
analysis(
        'stb
        ?start "1"
        ?stop "1T"
        ?dec "100"
        ?probe "/V0"
)
desVar("AVDD15" 1.5)
foreach(corner '("ss" "ff" "tt")
        resultsDir(sprintf(nil "%s/%s" resultPath corner))
        modelFile(
                list(modelFileName sprintf(nil "%s" corner))
                list(modelFileName sprintf(nil "bjt_%s" corner))
                list(modelFileName sprintf(nil "dio_%s" corner))
                list(modelFileName sprintf(nil "res_%s" corner))
        )      
        paramAnalysis(
                "temp"
                ?values '(-45 -20 60 85 125)
                paramAnalysis(
                        "AVDD15"
                        ?values '(1.35 1.5 1.65)
                )
        )
        paramRun()
)

Generate Netlist Using SKILL

simulator('spectre)
design("libName" "cellName" "schematic")
createNetlist()

input.scs & netlist

In netlist directory, there are two files called input.scs and netlist respectively, input.scs is used by runSimulation, while the netlist file can be used in ocean script in design command

ocnWaveformTool( 'wavescan )
simulator( 'spectre )
design("xxxxxxx/spectre/schematic/netlist/netlist")
resultsDir("../prj/pll_xxxxx/spectre/schematic" )

"paMaster" Directory in simulation result directory

This directory is used from Parameter Analysis purpose. It contains an runObjFile file:

HEADER
"PSFversion" "1.00"
"Run Generator" "drlRun rev. 1.0"
"Run Time Stamp" "Dec 24 11:46:49 2015"
"date" "Dec 24 11:46:49 2015"
"simulator" "spectre"
"netlistDir" "../netlist"
"tranSST2Data" "TRUE"
TYPE
"runObject" STRUCT(
"logName" ARRAY( * ) STRING *
"parent" STRING *
"sweepVariable" ARRAY( * ) STRING *
) PROP( "key" "runObject" )
VALUE
"Root" "runObject" (
("")
""
("temp")
)
"temp=-40/psf" "runObject" (
(
"../temp=-40/psf/logFile"
"../temp=-40/psf/artistLogFile"
)
"Root"
()
) PROP(
"netlistDir" "../netlist"
"dataDir" "../temp=-40"
 "temp" -40
)
"temp=60/psf" "runObject" (
(
"../temp=60/psf/logFile"
"../temp=60/psf/artistLogFile"
)
"Root"
()
) PROP(
"netlistDir" "../netlist"
"dataDir" "../temp=60"
 "temp" 60
)
"temp=125/psf" "runObject" (
(
"../temp=125/psf/logFile"
"../temp=125/psf/artistLogFile"
)
"Root"
()
) PROP(
"netlistDir" "../netlist"
"dataDir" "../temp=125"
 "temp" 125
)

*Error* Could not select results from xxxx

Put runObjFile into your psf directory will solve this issue.

A sample runObjFile is like

"Run Time Stamp" "Dec 22 21:03:14 2015"
"simulator" "spectre"
"date" "Dec 22 21:03:14 2015"
"tranSST2Data" "TRUE"
"netlistDir" "../netlist"
TYPE
"runObject" STRUCT(
"logName" ARRAY( * ) STRING *
"parent" STRING *
"sweepVariable" ARRAY( * ) STRING *
) PROP( "key" "runObject" )
VALUE
"Run1" "runObject" (
(
"logFile"
"artistLogFile"
)
""
()
)
END

Wavescan Mode

Wavescan has two modes:

• SKILL mode
• SpectreMDL mode

To use SpectreMDL mode:

wavesan -expr MDL

termMapping in CDF

stub

CDF Bus Pin Order

CDF Bus Pin Order must match that in Symbol view, otherwise, the bus pin will not generated in the netlist.

Save Current for Layout-Extracted Netlist

save I0:currents
saveCurrentOpts  options userterm=name

Set ADE "Include Path"

Circumvent "cdsinit" Calling -- use "nocdsinit" and "restore" options

You could revert to "icfb -nocdsinit -restore myInit" and then have myInit contain:

load(".cdsinit") ; get the path right
envSetVal("asimenv.startup" "simulator" 'string "spectre")

Set ADE Default Simulator

envSetVal("asimenv.startup" "simulator" 'string  "spectre")
or
envSetVal("asimenv.startup" "simulator" 'string  "ams")

Current Direction Of Spectre Simulation Result

into source or component:  positive

out of source or component: negative 

Set Wavescan Marker Precision

envSetVal("wavescan.marker" "significantDigits" 'string "6")

Set CIW Calculation Result Precision -- Cadence

sstatus(fullPrecision  t)

Add Shortcut To "Unzoom" Command

Inside your .cdsinit file, add:

hiSetBindKeys("wavescan" list(
  list("None<Key>u" "graph.zoom.unzoom")
))