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spectre save command - usage

roopakvasa

Hello,

I did look at save command documentation in user and reference guide. But it still looks confusing to me.

I am specifically looking for commands to do following two task:
1) probe all nodes of subckt but ignore nodes connected to parasitics (can be easily done in X4 using exclude=*:*)
but in X0 following is not working
saveOptions options save=allpub nestlvl=2 subckt=H12P_SUBCNTL filter=rc exclude=":"

2) probe subckt currents like VDD and VCS for all subckts to a given depth
in X0 following is not working
save x*.*VDD sigtype=subckt

Please help?

Thanks

  • Andrew Beckett

    For the first, I think you could just use filter=colon rather than filter=rc (filter=rc would normally work - how are you representing the parasitic network - what tool generated the extraction?).

    The second wouldn't work if the subckt is called X0, because it's case sensitive. Also, it would require the instance names to have a name ending in VDD - you're asking to save all the subckt terminal currents for a top level instance beginning with a lowercase x, and where the lower level instance names end in VDD. Perhaps you meant to do save X0.*:VDD to save just the currents through the VDD terminal?

    Regards,

    Andrew.

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