AMS simulation fails to generate netlist

Did you do what it said? Have you got Spectre in your UNIX path? Can you run a Spectre simulation (on a simpler circuit) and which version of Spectre have you got installed?

Andrew

Sorry, I don't know what does it mean? I can run a spectre simulation as long as it is not AMS simulation, the version that I have installed is 20.1

How can I update the PATH variable with the path to Spectre 20.1?

Three things:

1. Which exact spectre sub-version are you using? It specifically suggests 20.1 ISR4 or later, so you could still be using an earlier version. The spectre sub-version can be seen in the log of any spectre sim, or by typing "spectre -W" at the UNIX prompt
2. Which XCELIUM sub-version are you using (xrun -version)?
3. Which IC sub-version are you using? Help->About in any window or typing getVersion(t) in the CIW, or "virtuoso -W" from the command line.

This is probably best handled through customer support - and that may still be best if the solution is not obvious. For example, there have been some issues when wrappers around spectre were used - I'm really not going to get into detailed debugging of that here; hence my suggestion to use the proper support channel.

Andrew

Spectre sub-version:20.1.0.068

XCELIUM sub-version: 21.09-s007

IC sub-version: IC6.1.8-64b.500.18

Are there some problems about these sub-versions?

Thank you so much for replying to me, I will try to email to customer support

I'm not entirely sure how you're managing to use that IC version, because it ought to fail to start because with XCELIUM2109 the minimum IC version is IC6.1.8-64b.500.21 - see Cannot start Virtuoso if using Xcelium 21.03 or 21.09. However, if I use ISR21 together with the Spectre and XCELIUM versions you're using, I get the same error as you did:

generate netlist...
*ERROR* (AMS-2183): The AMS Unified Netlisting (AMS UNL) flow cannot find the correct Spectre installation from $PATH. To run the AMS Unified Netlister, update the PATH variable with the path to Spectre 19.1 ISR15 (Spectre 20.1 ISR4) or a later release.
...unsuccessful.

Not really surprising though, because that version of Spectre 20.1 is the base release, and so is older than ISR4. If I switch to:

Spectre sub-version 20.1.0.155.isr4

then all works fine. Any later hotfix of SPECTRE20.1 should be OK too.

So the solution is to switch to a newer Spectre sub-version. The XCELIUM version is very up to date, and your IC version is moderately up to date (although, as I said, I'm not sure how you can run with that sub-version), but the Spectre version is from September 2020 (IC6.1.8 ISR21 is from October 2021).

I don't think you'll need customer support after all - just update your SPECTRE20.1 version to a more recent hotfix, as the error suggested.

Regards,

Andrew

Thanks a lot, after updating to a newer Spectre sub-version, all woks fine.

Hi, recently, I am running config simulation with maestro, but netlist generation failed, as shown in the bottom figure, I tried to update my Spectre version and IC version, but it didn' work, I don't know what to do,  are there any methods to solve this problem?

Spectre sub-version:20.1.0.534.isr17

XCELIUM sub-version: 21.09-s007

IC sub-version: IC6.1.8-64b.500.26

Regards,

Yongqi 

Please do not double post questions and read the Guidelines for the Custom IC Design Forum. This is exactly the same as you've posted in your other thread.

Andrew

Sorry, my bad, I don't know before asking this question, I won't make the same mistake next time