数字集成电路设计透视缺八章discussion1.pdfVIP

EECS141Fall1999DiscussionSessionWeek#19/1/99

TipsforusingHspice

I.GettingStarted

Setuptheenvironment:

source/usr/eesww/HSPICE/98.2/bin/cshrc.meta

Runthesimulatoronyourinputfile:

hspicefilename.sp!filename.lis

Usethewaveformviewertoseetheoutput

awaves

Inputfilesmusthavetheextension.spforthewaveformviewertowork.

Also,theinputfilemusthave“.OPTIONPOST=2”specified.

WaveformscanbeprintedbychoosingTools-Print...

Viewtheonlinedocumentation

acroread/usr/eesww/HSPICE/98.2/docs/hspice.pdf

Thepagenumbersintherestofthisdocumentrefertothismanual.

Thisfileis11MB(1714pages).Donotprintitout!

II.NetlistFormat

Theinputfilesarecaseinsensitive.

Thefirstlineisalwaysacomment.Otherlinesarecommentedwithaleading*or$

Allnonlineardevicesmusthavea.MODELstatement.

Names:

cancontainletters,numbers,andthecharacters!#$%*+-/[]_(seep.3-18)

canbe1024characterslong

Nodenamescanbeginwithletters,numbers,orthecharacters#_!%(seep.3-19)

Trailingalphabeticcharactersareignoredinnetnames.Forexampleanodenamed

1Aisconsideredtobeequivalenttonode1(seep.3-19)

Nodesnamed0,GND,GND!,andGROUNDallrefertotheglobalgroundnode.

es:

Scientificnotation:e.g.1.1e-17

Useasuffix:e.g.2.3u(x=mega,k=kilo,m=mili,u=micro,n=nano,p=pico,f=femto)

Useaparameter:e.g.minlen(parametersmustbedeclaredwitha.PARAM

statement)

Evaluatedexpressions:e.g.‘500m*minlen’

Outputvariables:

Voltagweentwonodes:v(n1,n2)

Voltageofanoderelativetoground:v(n1)

Currentthroughantsource:i(vin)

IV.Analysis

.OPOperatingpoint,DCcircu