script for automatic spectre netlist

Hi,

is it possible to write a script (in skill?) which will start the
spectre netlister?
I would like to have a script which starts the netlister instead of
going through the menus.

Is it possible to force the execution of a skill script inside Cadence
from the linux/unix command prompt? This would allow an external
program to take 'control' over Cadence. Can this be done? When can I
find more information on this?

Thanks
Jos

 

Funny, i was thinking of doing such a thing also...
I'm joining a script which i quickly did at the bottom of this post.
I didn't test it toroughly, though. feel free to post comment/corrections/improvements.
Feel free to code a gui also

One way i can see i using ipcSkillProcess() to start an external process.
when launched this way, file handles 3 and 4 of the newly created process
are open for SKILL communication, that is, the process can send SKILL command
to port 3 and get the output from port 4.

in this way however, the execution is triggered from inside cadence. to do the opposite
one has to run a "daemon" SKILL script which opens a socket, waits for commands and executes them.
this has been discussed previously, and Andrew even posted the code to do it. see
http://groups.google.ch/groups?selm=&rnum=3

stéphane
-

this is the spectre netlist code:
----------------------------------------------------------------------
procedure(
SSNetlistSpectre(
;; parameters
lib ; library name
cell ; cell name
view ; view name
@key
( output nil ) ; file name for output netlist
( models nil ) ; override list of model files
( definitions nil ) ; override list of definition files
( includes nil ) ; override list of include files
( includePath nil ) ; override include file path
( stimuli nil ) ; override list of stimulus files
( options nil ) ; list of options to set ex: '("temp" 27 )
( switchViewList nil ) ; override switch view list ex: '( "spectre schematic cmos_sch ahdl" )
( stopViewList nil ) ; override stop view list ex: '( "spectre" "ahdl" )
( analyses nil ) ; list of analyses / options ex: '( dc ?saveOppoint t )
( variables nil ) ; list of design variables ex: '( "vdd" 1.8 "vin" "vdd/2" )
)

let( (fileName fileIn fileOut str)

simulator( 'spectre )

;; open design
when( !design( lib cell view )
printf("Couldn't open design")
return(nil)
) ; when

;; setup model files
when( models
apply( 'modelFile models )
) ; when

;; setup definition files
when( definitions
apply( 'definitionFile definitions )
) ; when

;; setup include files
when( includes
apply( 'definitionFile includes )
) ; when
when( includePath
apply( 'path includePath )
) ; when

;; setup stimulus files
when( includes
apply( 'stimulusFile stimuli )
) ; when

;; setup switch/stop view lists
when( switchViewList
envSetVal( "spectre.envOpts" "switchViewList" "string" switchViewList )
) ; when
when( stopViewList
envSetVal( "spectre.envOpts" "stopViewList" "string" stopViewList )
) ; when

;; setup options
when( options
apply( 'option options )
) ; when

;; setup analyses
foreach( analyse analyses
apply( 'analysis analyse )
) ; foreach

;; setup design variables, or try to get them from the cell
if( variables
then
apply( 'desVar variables )
else
apply( 'desVar apply( 'nconc dbFindProp( ddGetObj(lib cell) "designVarList" )~>value) )
) ; when

;; create netlist
when( fileName=createNetlist( ?display nil )
if( output
then
;; copy netlist to specified file
fileIn = infile( fileName )
fileOut = outfile( output )
while( gets( str fileIn ) fprintf( fileOut "%s" str ) )
close( fileIn )
close( fileOut )
view( output )
else
view(fileName)
) ; if
) ; when


fileName
) ; let
) ; procedure
----------------------------------------------------------------------

 

thanks for the info. Looks like exactly what I was looking for. I'll
try it out, but don't put your hope up to much for the GUI ;--)

Jos