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Simulators >> Circuit Simulators >> cadence ocean script switching model files
https://designers-guide.org/forum/YaBB.pl?num=1303899183

Message started by Zorro on Apr 27^th, 2011, 3:13am

Title: cadence ocean script switching model files
Post by Zorro on Apr 27^th, 2011, 3:13am

Can please somebody help me to modify an ocean script? Ocean scripts are new to me.

the ocean file is running but I need to switch among different model files.

I have this:

modelFile(
'("$PDK_DIR/at77000/analog_artist/models/spectre/model_corners/MOS_nom_RES_nom_CAP_nom.scs" "")
)

and it is working.

now I want to, let's say run the same ocean script but using 3 different model files:

"$PDK_DIR/at77000/analog_artist/models/spectre/model_corners/MOS_nom_RES_nom_CAP_nom.scs"

"$PDK_DIR/at77000/analog_artist/models/spectre/model_corners/MOS_bcs_RES_high_CAP_high.scs"

"$PDK_DIR/at77000/analog_artist/models/spectre/model_corners/MOS_bcs_RES_nom_CAP_low.scs"

what is the best way to do this? I have tried different ideas but without success.

my idea is to do something like this:

model_path="$PDK_DIR/at77000/analog_artist/models/spectre/model_corners/"

corner1=strcat(model_path "/MOS_nom_RES_nom_CAP_nom.scs")
corner2=strcat(model_path "/MOS_bcs_RES_high_CAP_high.scs")
corner3=strcat(model_path "/MOS_bcs_RES_nom_CAP_low.scs")

and then to use a foreach. but I don't get it to work because of syntax errors or maybe because it is not the correct way to do it.

can please somebody have a look at this and if possible provide me an (written) example?

thank you!

Title: Re: cadence ocean script switching model files
Post by Zorro on Apr 28^th, 2011, 2:58am

Hi All,

for those who are interested I found a method to switch between the models.
maybe the code is not the most elegant but it fulfills the desired objective.
as a point of reference here is the code:

;;;;;;;;;;;;;;;;;;;;;;;;; Part1

comment the following lines:

;modelFile(
; '("$PDK_DIR/at77000/analog_artist/models/spectre/model_corners/MOS_bcs_RES_high_CAP_low.scs" "")
;)

use instead:

model_path="/design/libs/at77000/v0.7/at77000/analog_artist/models/spectre/model_corners"
list1 = strcat(model_path "/MOS_bcs_RES_high_CAP_high.scs ")
list2 = strcat(model_path "/MOS_bcs_RES_high_CAP_low.scs ")
list3 = strcat(model_path "/MOS_bcs_RES_low_CAP_high.scs ")
list4 = strcat(model_path "/MOS_bcs_RES_low_CAP_low.scs ")
...
etc etc etc, define here all the different models

;;;;;;;;;;;;;;;;;;;;;;;;; Part2

then define a list where you can select which models will be used in the loop, for example

corner_list = list(list1 list2 list4 )

;;;;;;;;;;;;;;;;;;;;;;;;; Part3

then use a loop:

foreach( corner corner_list
modelFile( corner)
run()

...
...
...
)

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

and that's it.

Best Regards and hope it is helpful for someone!

Title: Re: cadence ocean script switching model files
Post by Geoffrey_Coram on Apr 28^th, 2011, 5:32am

Thanks for posting the solution!

Title: Re: cadence ocean script switching model files
Post by Zorro on Apr 28^th, 2011, 6:43am

you are welcome!
it could be helpful for someone starting ocean scripts.
regards!