How to define model or subcircuit?

Not sure why you posted once, deleted the post (which was almost identical to this one) and then posted again - I tend to find that a bit annoying.

The error indicates that you have an instance in the netlist which is trying to instantiate a sub circuit or model that hasn't been defined anywhere. It's not the instance that is the problem, but the model definitions need to be provided somewhere, typically via Setup->Model Libraries in ADE. If this is a transistor or similar device level component, presumably you have some model files somewhere (usually with a .scs suffix) that would need including. Often there's a single model file that can be included to define all the devices for a particular PDK.

It's possible using a cdsenv setting to have new ADE setups define the model files automatically - using:

envSetVal("spectre.envOpts" "modelFiles" 'string  "/some/path")

There was a recent post talking about this - but first of all, work out how to set it up interactively to make sure all is working OK.

Andrew.

Hi Andrew

I am so sorry for deleted previous one and posted again. I did that because I thought the error was not described clearly. 

Back to the problem, I tried to set a new ADE setups for defining the model files automatically, but in CIW, it shows unmatched.

In the error, the path is xxx/simulation/Receiver_readera_tb/ams/config/netlist/analog/input.scs.

I tried both

envSetVal("spectre.envOpts""modelFiles"'string"/xxx/simulation/.../analog/input.scs") ---  unmatched

and

spectre.envOpts modelFiles string"/xxx/simulation/.../analog/input.scs" --- Command not found

The component used is transistor. In the PDK's Model file, I can find that there are 3 .scs fiels including gf90nlp.scs/gl90nlprf.scs/soa_EF90.scs

Is there any problem that the ADE L ams:model library setup is empty without any file link? such as xx.tt

By the way, I did not execute following command in UNIX for entering certain forms with ADE because they are optional and permission is denied when I excuted.

In -s <PDK_INST_DIR>/Models

In -s<PDK_INST_DIR>/Stream

Sorry again for making you a bad mood and have a good day.

Regards,

Chofie.

You can't just enter cdsenv lines in the CIW, because that syntax (the second you showed) is for a .cdsenv file only. You need the SKILL statement and you appear to have missed out the spaces between the strings and arguments. It should be:

envSetVal("spectre.envOpts"  "modelFiles"  'string  "/path/to/model.scs")

You didn't mention you're using AMS as the simulator until now, for that it would be:

envSetVal("ams.envOpts" "modelFiles" 'string "/path/to/model.scs")

HOWEVER, you appear to be trying to set the model file to the path  to an intermediate netlist within the run directory. That makes no sense as it would then refer to itself somehow. You're presumably going to need to include these gf90nlp.scs files or similar - I can't tell you what is needed for the specific PDK you're using, but hopefully GF have documented it. If not, you would need to ask the foundry.

Andrew.

I have considered my simulator is using ams and tried

envSetVal("ams.envOpts" "modelFiles" 'string "/path/Models/gf90nlp.scs")

Now, I link Models and Stream files into my work directory and try to set it again. Still, it shows unmatched in CIW again. 

Is that because the .scs file I got is wrong file? I opened this file and saw nmos part parameters setting (so i guess this file is what I am looking for).

Cho.

Please give the exact error message (cut and paste it into the post). Otherwise I'm having to guess what you might have done wrong.

Andrew.

It caused due to no global model files. 

Then, I add global model files (xx.scs) and specific sections (tt/res/...) manually.

However, there is a error claiming that

"path/xx.scs" 3240: No section found with name 'mos_dep_hv' defined in file 'path/xx.scs'

I wonder that the problem is caused by some missing section of the lib file or mismatch of some component. Thus, ensuring detail of xx.scs file with PDK provider is next step.

Regards,

Cho.

It's pretty unlikely that you need to use a section name corresponding to the model name to include each model. I'd check the model files, and have a look for the lines with the keyword section at the beginning of each line. Maybe do:

grep '^section' path/xx.scs

to see the available section names (ADE should also show a drop-down list for the available section names on the Setup->Model Libraries form, so that will show you too).

Or best, contact the foundry or read their documentation to find out what they expect you to include.

Andrew.

It's pretty unlikely that you need to use a section name corresponding to the model name to include each model. I'd check the model files, and have a look for the lines with the keyword section at the beginning of each line. Maybe do:

grep '^section' path/xx.scs

to see the available section names (ADE should also show a drop-down list for the available section names on the Setup->Model Libraries form, so that will show you too).

Or best, contact the foundry or read their documentation to find out what they expect you to include.

Andrew.