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How to highlight a cell in a schematic?

michelebergo over 14 years ago

How to highlight a cell operating in region 2 (saturation) after a simulation in a schematic window?

thank you

Andrew Beckett over 14 years ago

Results->Circuit Conditions in ADE will do this.
Andrew
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michelebergo over 14 years ago

I mean ---> with skill?
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michelebergo over 14 years ago

circuit conditions doesn't work in my environment...
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Andrew Beckett over 14 years ago

Wouldn't it be better to find out why it doesn't work and fix that, rather than reinventing the wheel?
Andrew.
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michelebergo over 14 years ago

I work in STMicroelectronics and I use an open access version of virtuoso (eldoD is my simulator). It would be better but I would spend too much time to find out the reason why it is not working.
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Andrew Beckett over 14 years ago

Well, to write your own you'd end up using the low level highlight functions ge.*Hilight.* (search in cdsFinder for Hilight), and OCEAN functions to find the DC operating point data. Don't have an example - maybe somebody else does.
I just tried Circuit Conditions with Eldo, and it worked (the example I had didn't have any models which produced "region" so I had to use vdsat or similar). Alternatively you could use Eldo's SOA capabilities.
It might be easier to contact Cadence or Mentor Customer Support to try to resolve why the circuit conditions is not working for you.
Regards,
Andrew.
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michelebergo over 14 years ago

the ocean code to check the operating region of every mos in the schematic:
openResults("psf_path")
selectResult('opBegin)
devices=outputs(?type "BSIM3V3")
foreach(dev devices reg=pv(dev "region")
println(reg)
(if reg == 0.0 println("cut off"))
(if reg == 1.0 println("triode"))
(if reg == 2.0 println("saturation"))
(if reg == 3.0 println("weak inversion"))
(if reg == 4.0 println("breakdown"))
)
there's no a skill command to highlight a cell with a particular simulation parameter.
Impossible for me to display on cdsParam(5) label the field region, too!
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