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How to define a parameter representing a path in globel model files?

zuiying

Hello! I contructed my globlal model file and included it in spectre.

The "CZH_toplevel.scs" is written by me and czh_top_tt is a section in it. The codes of CZH_toplevel.scs are as follows.

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simulator lang=spectre insensitive=yes
library tsmclib

section czh_top_tt
include "/sec/pdk/tsmc/28nHPCPLUS/28HPCPLUSV2103/Models/spectre/V1.02p9/cln28hpcp1d8elkv1d02p9shrink0d9embeddedusage.scs" section=ttmacromosmoscap
include "/sec/pdk/tsmc/28nHPCPLUS/28HPCPLUSV2103/Models/spectre/V1.02p9/cln28hpcp1d8elkv1d02p9shrink0d9embeddedusage.scs" section=ttresbipdiodisres
include "/sec/pdk/tsmc/28nHPCPLUS/28HPCPLUSV2103/Models/spectre/V1.02p9/cln28hpcp1d8elkv1d02p9shrink0d9embeddedusage.scs" section=ttmom
include "/sec/pdk/tsmc/28nHPCPLUS/28HPCPLUSV2103/Models/spectre/V1.02p9/cln28hpcp1d8elkv1d02p9shrink0d9embeddedusage.scs" section=ttrmetal
include "/sec/pdk/tsmc/28nHPCPLUS/28HPCPLUSV2103/Models/spectre/V1.02p9/cln28hpcphv1d8elkv1d12p1shrink0d9embeddedusage.scs" section=ttmacromosmoscap
include "/sec/pdk/tsmc/28nHPCPLUS/28HPCPLUSV2103/Models/spectre/V1.02p9/cln28hpcp1d8elkv1d02p9shrink0d9embeddedusage.scs" section=presimu
include "/sec/pdk/tsmc/28nHPCPLUS/28HPCPLUSV2103/Models/spectre/V1.02p9/cln28hpcphv1d8elkv1d12p1shrink0d9embeddedusage.scs" section=presimu
endsection czh_top_tt
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Because the "/sec/pdk/tsmc/28nHPCPLUS/28HPCPLUSV2103/Models/spectre/V1.02p9" folder is readonly for me, I can't create a .scs file in this folder by which I can use the relative path.
Now, I want to construct more sections. But I think the absolute path is really long. Is there any way to define a parameter to represent "/sec/pdk/tsmc/28nHPCPLUS/28HPCPLUSV2103/Models/spectre/V1.02p9" so that I can use this parameter to improve the readability of codes?
Really thanks!

  • Andrew Beckett

    The easiest would be to define a UNIX environment variable:

    setenv MODELHOME /sec/pdk/tsmc/28nHPCPLUS/28HPCPLUSV2103/Models/spectre/V1.02p9

    (or export MODELHOME=/sec/pdk/tsmc/28nHPCPLUS/28HPCPLUSV2103/Models/spectre/V1.02p9 if using bash). Set this before starting Virtuoso. Then in the model file:

    simulator lang=spectre insensitive=yes
    library tsmclib

    section czh_top_tt
    include "$MODELHOME/cln28hpcp1d8elkv1d02p9shrink0d9embeddedusage.scs" section=ttmacromosmoscap
    include "$MODELHOME/cln28hpcp1d8elkv1d02p9shrink0d9embeddedusage.scs" section=ttresbipdiodisres
    include "$MODELHOME/cln28hpcp1d8elkv1d02p9shrink0d9embeddedusage.scs" section=ttmom

    ...

    Andrew

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