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用ocean脚本做corner分析

热度 6已有 4859 次阅读| 2018-5-23 15:58 |系统分类:芯片设计

OCEAN是基于字符界面的SKILL语言脚本，可以运行于字符界面活Cadence CIW界面。使用spectre仿真器可以实现的功能用OCEAN基本都可以实现，因此用OCEAN做corner扫描可以尽可能的节省人力。

Reference：OCEAN Reference

simulator( 'spectre ) ;;;-> Choose a simulator

design( "/home/hx/simulation/ADC_ANA_GSMC_tb/spectre/schematic/netlist/netlist") ;;;-> netlist

resultsDir( "/home/hx/simulation/ADC_ANA_GSMC_tb/spectre/schematic_ocean" ) ;;;-> Results area path

i=1

corners = list("ss" "tt" "ff") ;;;-> Setting corners, LIST data structure

foreach(corner corners ;;;-> Looping structure, for or while can used too

printf( strcat("The corner is " corner "\n")) ;;;-> print to CIW for debug

modelFile(

'("/home/GSMC/SIM_130SOIG_PDK_V0D2/SPICE_MODELS_FOR_0.13um_SOI_CMOS_PROCESS/SM_130SOIG/SM_130SOIG.scs" strcat(corner "tt_rvt"))

;printf(strcat(corner "tt_rvt" "\n"))

'("/home/GSMC/SIM_130SOIG_PDK_V0D2/SPICE_MODELS_FOR_0.13um_SOI_CMOS_PROCESS/SM_130SOIG/SM_130SOIG.scs" strcat("res_tt" corner))

;printf(strcat("res_tt" corner "\n"))

'("/home/GSMC/SIM_130SOIG_PDK_V0D2/SPICE_MODELS_FOR_0.13um_SOI_CMOS_PROCESS/SM_130SOIG/SM_130SOIG_RF.scs" strcat("cap_tt" corner))

;printf(strcat("cap_tt" corner "\n"))

) ;;;-> modelfile according to different corners, "strcat" function used here

temperature = list(-30 27 80) ;;;-> Setting temperatures

foreach(T temperature

printf( "The temperature is %d\n", T)

analysis('tran ?stop "(500 / VAR(\"Fs\"))" ?errpreset "conservative" ?maxstep "5p" )

desVar( "VCMO" 850m ) ;;;-> Setting up the design variables and temp

desVar( "vdd" 1.2 )

desVar( "VRP" 1.25 )

desVar( "VRN" 450m )

desVar( "Fs" 300M )

desVar( "jitter" 0 )

desVar( "fi" 2 )

desVar( "td" 2p )

desVar( "tr" 2p )

desVar( "tf" 2p )

desVar( "Temp" T );;;-> Temp will be used later as string

desVar( "N" i )

i=i+1

envOption(

'cmd64bit t

'analysisOrder list("tran" "dc")

)

option( 'nthreads "32"

'multithread "on"

'temp "27.0"

)

option( ?categ 'turboOpts

'numThreads "16"

'mtOption "Manual"

'uniMode "APS"

)

saveOption( ?outputParamInfo nil )

saveOption( ?elementInfo nil )

saveOption( ?modelParamInfo nil )

saveOption( 'pwr "none" )

saveOption( 'save "selected" )

save( 'v "/DA_OUT" )

temp( T )

;run() ;;;-> Running the sim

selectResult( 'tran )

newWindow()

plot(getData("/DA_OUT") ) ;;;-> Plot any stored waveforms

addTitle( strcat( "NO." desVar("N")))

addWindowLabel( list( 0.75 0.75) strcat( "T=" desVar("Temp") " corner=" corner))

Ts=1.0/evalstring(desVar("Fs"))

Sampler_Start = (39.5/40.0)*Ts

Sampler_Stop = 450*Ts

ocnPrint(?output strcat("/home/hx/opus/GSMC/Pipeline_ADC/oceanScript/Results/" desVar("Temp") "_" corner) ?precision 10 ?numberNotation 'none ?numSpaces 4 ?width 14 ?from Sampler_Start ?to Sampler_Stop ?step Ts v("/DA_OUT")) ;;;-> output the node "DA_OUT" to file

);;;-> temperature foreach ends"waveform_" desVar("i ") desVar("T ")

);;;-> corners foreach ends