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ocean script, sens analysis and ?addInstancesUsingWildcards option

marcelpreda

Hi there,

I want to know if ?addInstancesUsingWildcards  is a valid option of an ocean statement like below (spectre simulator, cadence v6.1.7).

analysis('sens ?analyses_list list("dcOp" "dc" "ac")  ?net list("/out") ?addInstancesUsingWildcards "I0.M2 I0.M3"  )

just found such statement in some code that I have to maintain.

Also, where I can find some documentation about addInstancesUsingWildcards option?

The only thing that I've found are those two links, not too many details:

https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1Od0000007McMdEAK&pageName=ArticleContent&sq=005d00000042vf9AAA_201813182645915
https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1Od0000000uYaKEAU&pageName=ArticleContent&sq=005d00000042vf9AAA_201813182645915

Thanks,

Marcel

Parents

  • Marcel,

    Yes - we don't necessarily explicitly document all the options this way. However, if you use ocnHelp('analysis) you'll see it mentioned under the sens analysis. Also if you add the analysis, and do ocnDisplay('analysis) or ocnDisplay('analysis 'sens) you'll see the parameter listed there.

    Or if you set it up in the ADE UI and export the OCEAN script, you'd see it there too.

    Most of the time the arguments are named after the corresponding options in the simulator (as you would see from "spectre -h tran" for example), but in a few cases they are ADE-specific fields that need to be supported too.

    Regards,

    Andrew.

  • in reply to Andrew Beckett

    Hi Andrew,

    In ADE-L I've selected an instance (see image), and after that saved the state as ocean script.

    But in the saved ocean script I have no list of selected instances:

    analysis('sens ?anaName "sens"  ?analyses_list list("dc")  ?net list("/VDD_65V")  )
    analysis('dc ?anaName "dc"  ?saveOppoint t  ?write "spectre.dc"
                    ?oppoint "rawfile"  ?maxiters "50"  ?maxsteps "1000"  ?annotate "status"
                    ?threshold "0.0"  ?detail "node"  ?sort "name"  )

    Here is the CIW output of ocnDisplay('analysis 'sens): 

    Analysis name: sens  Analysis type: sens
     (anaName "sens")
     (sensType (nil nil nil))
     (analyses_list ("dc"))
     outputs(nil)
     (output_list nil)
     (net ("/VDD_65V"))
     (term nil)
     (instances nil)
     (additionalParams "")
    nil

    getVersion(t)

    "sub-version  IC6.1.7-64b.500.8.EHF2985 "

    Do I need a newer version?

    sens select insts

  • in reply to marcelpreda

    Marcel,

    Two problems. Firstly the addInstancesUsingWildcards field was  only added in IC617 ISR9 (so just after what you're using). Secondly there was a bug which was fixed in IC617 ISR10 which meant that the state information wasn't being properly recorded (for the selected instances) - and so what that meant was that ADE XL didn't netlist the selected instances. I suspect (from knowing what was going on in the bug - I dealt with the issue myself) that it would also affect OCEAN too (I didn't check).

    So I'd suggest trying this in an IC617 subversion greater than ISR10.

    Regards,

    Andrew.

  • in reply to Andrew Beckett

    Thank you Andrew.

    The things looks better in the newer versions.

    ocnDisplay('analysis 'sens)
    Analysis name: sens  Analysis type: sens
     (anaName "sens")
     (sensType (nil nil nil))
     (analyses_list ("dc"))
     outputs(nil)
     (output_list nil)
     (net ("/vdd"))
     (term nil)
     (instances nil)
     (instancesList ("/M1" "/M0"))
     (addInstancesUsingWildcards "")
     (additionalParams "")

    Best reagards,

    Marcel

Reply
  • in reply to Andrew Beckett

    Thank you Andrew.

    The things looks better in the newer versions.

    ocnDisplay('analysis 'sens)
    Analysis name: sens  Analysis type: sens
     (anaName "sens")
     (sensType (nil nil nil))
     (analyses_list ("dc"))
     outputs(nil)
     (output_list nil)
     (net ("/vdd"))
     (term nil)
     (instances nil)
     (instancesList ("/M1" "/M0"))
     (addInstancesUsingWildcards "")
     (additionalParams "")

    Best reagards,

    Marcel

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