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  3. Electromigration/IR drop (EMIR)

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Electromigration/IR drop (EMIR)

TFTIC
TFTIC over 10 years ago

Hi, 

I setup a transient simulation from a terminal (without the use of ADEXL).

I use dspf netlist for a post-layout simulation and I want to use the emir option for electromigration/ir drop simulation.

I have the following questions/notices considering this procedure:

In the input.scs I do:

__________________________________

dspf_include="path/file.dspf format"

__________________________________

considering the extracted netlist in dspf format.

Then in the input.scs file I make to sections:

a) with the simulatorOptions (gmin etc) and

b) with the transient options (stop time etc).

the problem: I want to do the EM/IR analysis as it is described in spectreuser.pdf manual, section of post-layout simulation.

So, I add a line of the form in the input.scs:

___________________________

emir="path/emirconfigfile.conf"

____________________________

where the .conf file is the configuration file. My conf file has the following lines (doing what it is described in the manual):

________________________________________________________

solver method=[auto]

net name=[I0.*]

analysis=[imax]

emirutil emdatafile="./emmodel.txt" violation-map=all notation=[e]

_________________________________________________________

I0 is an instance

Questions:

1) Where do I add the emir=" " statement, in what section (in the simulationOptions, elsewhere)?

2) Is my .conf file correct?

3) The dspf file that I get from the extraction has some nodes of the form:

GAIN.XBOX_L<0>/XI0/MPG1:d

How could I probe this after my simulation? What I did (without success) I put in the save section

of input.scs: 

GAIN.XBOX_L\<0\>/XI0/MPG1:d

Thank you

BR

G

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  • Andrew Beckett
    Andrew Beckett over 10 years ago

    I would suggest you start by looking at the example that's in:

    <MMSIMinstDir>/tools/spectre/examples/EMIR_workshop/APS_EMIR_Workshop.tar.gz

    There's both an ADE example and a textual example. You'll see that the EMIR conf is passed on the command line to spectre via +emir=emir.conf .

    Regards,

    Andrew.

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  • Andrew Beckett
    Andrew Beckett over 10 years ago

    I would suggest you start by looking at the example that's in:

    <MMSIMinstDir>/tools/spectre/examples/EMIR_workshop/APS_EMIR_Workshop.tar.gz

    There's both an ADE example and a textual example. You'll see that the EMIR conf is passed on the command line to spectre via +emir=emir.conf .

    Regards,

    Andrew.

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