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用ocean脚本做corner分析

热度 4已有 4276 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
2

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发表评论 评论 (2 个评论)

回复 yunsgao 2019-12-19 09:02
感谢分享,谢谢
回复 erict 2021-5-10 11:42
谢谢

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