Need a medium size SPICE netlist

Sep 22, 2007 3 Replies
M

I need a medium size SPICE netlist - between 10,000 and 100,000 instances.



The requirements are:


  1. It should be 'standard' SPICE syntax. I know there are lots of variations on 'standard' SPICE syntax, but here's the definition I'm working with: The netlist should be readable, without syntax errors, by at least one commonly used tool that reads SPICE files. HSPICE, PSPICE, LTSPICE, or various LVS tools.
  2. It needs to be hierarchical (it should have subcircuits)
  3. It needs to be complete down to the level transistor level (device models aren't necessary, but transistor instantiations are).

The circuit doesn't have to work, or even be functional. I don't need to know what it does, and I don't need the simulation control files. I've written a SPICE parser, and would like some test cases to throw at it. The test cases I have all come from a single netlister (Mentor). I'd like to have netlists generated by other sources (by hand, or from other tools). SPICE format trace netlists (which often have a somewhat different SPICE syntax) are also welcome.



If you have a netlist you can give away, please post it as a zip (tar, gzip,



7z, etc) file to abse.

If you can provide a link to a netlist, that would also be fine.



Thanks,


-- Mike --


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J

(1) Mike who?

(2) What are you trying to accomplish by parsing?

...Jim Thompson

| James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC\'s and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave
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M

All I'm interested in is parsing. The program parses out all the primitives, subcircuits, instances, and so on, and generates lists and hash-tables of everything. After that, it's a snap to do things like find a net and report on everything it attaches to. That can be real convenient if you're trying to do something like estimate how much driving strength you need for a net.

There are other uses as well. For example, digital synthesizers put buffers in signal lines. When you're troubleshooting a problem, it's hard to know whether the signal reaching the output buffer is the right one. Once you have a parser, you can easily trace back through buffers to find the signal name at the driver.

I haven't done anything with bipolar in quite a while, but we used to do lots of stuff with multi-level CML, and the standard problem we'd run into was connecting the wrong levels together. SPICE wasn't much help with those mistakes - the circuits would work find in simulation, then fail in silicon.

So, that's what I want to do with the parser.

The only thing I want to do with other netlists is read and parse, to check the parser with as many different 'standard' SPICE formats as I can. There are lots of variations, and every schematic / layout / synthesis tool seems to produce some variation that take special code to parse correctly.

-- Mike --

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J

Replied privately.

...Jim Thompson

| James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC\'s and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave
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