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spectre - saving by specific subcircuit

swdesigner

Is it possible to tell spectre to save all nodes or terminal currents within a certain subckt? It's trivial in Hspice, you could do

 

save all Xtop.Xsub.*

 

I believe there's even a way to use the wildcards to get it to only do the top-level within that subcircuit, but I don't recall it..

 

Any ideas? How would it be done through the ADE, without messing with the netlist?

Parents

  •  Hi,

    a quick 

    >spectre -h save

    will reveal that it is trivial in spectre as well:

    Examples of pattern matching:

    save x*.*1 depth=3
    saves the voltages of all nodes from level 2 to level 3 whose name starts with
    `x' and ends in `1', eg x1.n1, x1.x2.x3 but not x1.x2.x3.x4

    save x*.*1 sigtype=subckt
    saves all terminal currents of subcircuits from level 2 and above whose name
    starts with `x' and ends in `1', eg x1.x21:2, x1.x2.x31:3

    save *:c devtype=bjt
    saves all collector currents

    save * subckt=inv
    saves the voltages of all nodes in the instances of the subcircuit `inv', eg
    X1.n1 for an instance X1 of inv but not net091 at the top-level

    save * exclude=[X1* X2*]
    saves the voltages of all nodes excluding the ones whose names start with `X1'
    or `X2', eg net091, X0.res3.n2 but not X21.res3.n2.

     

    Regards,

    Marc

Reply

  •  Hi,

    a quick 

    >spectre -h save

    will reveal that it is trivial in spectre as well:

    Examples of pattern matching:

    save x*.*1 depth=3
    saves the voltages of all nodes from level 2 to level 3 whose name starts with
    `x' and ends in `1', eg x1.n1, x1.x2.x3 but not x1.x2.x3.x4

    save x*.*1 sigtype=subckt
    saves all terminal currents of subcircuits from level 2 and above whose name
    starts with `x' and ends in `1', eg x1.x21:2, x1.x2.x31:3

    save *:c devtype=bjt
    saves all collector currents

    save * subckt=inv
    saves the voltages of all nodes in the instances of the subcircuit `inv', eg
    X1.n1 for an instance X1 of inv but not net091 at the top-level

    save * exclude=[X1* X2*]
    saves the voltages of all nodes excluding the ones whose names start with `X1'
    or `X2', eg net091, X0.res3.n2 but not X21.res3.n2.

     

    Regards,

    Marc

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