LAWRENCEVILLE, Ga. – The Association of Independent Institutions (A.I.I.) announced on Monday that Grant Shorty (SO/Albuquerque, NM) of Haskell Indian Nations University (Kan.) has been named the A.I.I.'s Men's Golfer of the Week for the duration of April 10-16.

Are they basically the same thing? I am trying to get as much experience with Allegro since a lot of jobs I am looking at right now are asking for Cadence Allegro experience (I wish they asked for Altium experience...). I currently have access to PCB Editor, but I don't want to commit to learning Editor if Allegro is completely different. Also walmart one, are the Cadence Allegro courses worth it? I won't be paying for it and if it's worth it, I figure I might as well use the opportunity to say I know how to use two complex CAD tools.

Hello,

I created a floorplan view in Virtuoso ( it contains pins and blockages). I am trying to run PnR in Innovus for floorplan created in Virtuoso. I used  set vars(oa_fp)    "Library_name cell_name view_name"   to read view from virtuoso. I am able to see pins in Innovus but not the blockages. Can i know how do i get the blockages created in virtuoso to Innovus.

Regards,
Amuu 

For a netlist vs. netlist LEC flow we have to solve the following problem:

- in the RTL code we replicate a large array of N x M all-identical hard-macros, let call them MACRO_A

- MACRO_A is pre-assembled in Innovus and contains digital parts and analog parts (bottom-up hierarchical flow)

- at top-level (full-chip) we instantiate this array of all-identical macros

- in the top-level place-and-route flow we perform ecoChangeCell to remaster the top row of this array with MACRO_B

- MACRO_B is just a copy of the original MACRO_A cell containing same pins position, same internal digital functionality and also same digital layout, only slight differences in one analog block inside the macro

- MACRO_A and MACRO_B have the same .lib file generated with the do_extract_model command at the end of the Innovus flow, they only differ in the name of the macro

- when performing post-synthesis netlist vs post-place-and-route we load .lib files of both macros in Conformal LEC

- the LEC flow fails because Conformal LEC sees only MACRO_A instantiated in the post-synthesis netlist and both MACRO_A and MACRO_B in the post-palce-and-route netlist

Since both digital functionality and STD cells layout are the same between MACRO_A and MACRO_B we don't want to keep track of this difference already at RTL stage, we just want to perform this ECO change in place-and-route and force Conformal to assume equivalence between MACRO_A and MACRO_B .

Basically what I'm searching for is something similar to the add_instance_equivalences Conformal command but that works between Golden and Revised designs on cell primitives/black-boxes .

Is this flow supported ?

Thanks in advance

Luca

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hi everyone, 

i'm trying to create a netlist for aging simulation. i would like to simulate how power, Gain and PAE (efficiency) are inlfuenced after 3 hours

i would be grateful if someone can correct my syntax in the netlist since i'm trying to make a sweep HB  simulation where the input power is the parameter.

i did it without any error for the sp (S parameters)  simulation.

you can see the images for both sp and hb simulation netlists. (from left to right: sp aging netlist; hb aging netlist)

i will be grateful if someone can provide me some syntax advices.

thanks,

best regards

For a project, we depend on capturing warnings. This works fine in Virtuoso but behaves differently in Allegro.

In our observations

Virtuoso:

>>> warn("Hello")

*WARNING* Hello

Allegro:

>>> warn("Hello")

*WARNING* Hello

But when we capture the warning:

Virtuoso:

>>> warn("Hello") getWarn()

"Hello"

Allegro:

>>> warn("Hello") getWarn()

"*WARNING* Hello"

This is a Problem for because we put an empty String in the warn and depend on the fact that no Warning results in an empty String but on Allegro the output always begins with *WARNING*

Is there a way to make the behavior consistent in both versions?

I'm in the process of weeding a regression test list. I have a coverage database from the full regression list and would like to diff it with the coverage database from the new reduced regression test list. If possible I would than like to trace back any buckets covered with the full list, but not with the partial list, into the original tests that covered them.

Is that possible using IMC? if not, is it possible to do from Specman itself?

(Note that we're not using vManager)

Thanks,

Avidan

Hi all,

I am using ADE assembler.

I ran transient simulation and swept the input frequency (Fin) of the circuit. And I use Spectrum Measurement to return a value of the fundamental tone magnitude (Sig_fund) for each sweep point. 

Previously, I use "plot across design points" to plot both "Fin" and "Sig_fund", and then use "Y vs Y" to get a waveform of Sig_fund vs Fin. Measure the 1dB Bandwidth with markers. 

Can I realized above measurement with an expression in "output setup" ? And how?

I know to set the "Eval type" to "sweep" to process the data across sweep points. But here, it has to return an interpolated value from "Fin" with a criteria "(value(calcVal("Sig_fund"  0) - 1)". I am not sure whether it can be done in ADE assembler.

Thanks and regards,

Yutao

Hi,

I am currently struggling with measuring the delay between two clocks with a sufficient accuracy. The reference one is a fixed-phase clock, and the other one is a squared clock resulting of a circuit (kind of PLL) synthesis.
As I need to run a large amount of Monte-Carlo simulations in transient noise, I need to improve the simulation speed, while keeping a satisfactory delay measurement accuracy (<0.1ps), more specifically at 0V-crossings of the differential clocks. So I cannot simply set a max timestep <0.1ps as it would be far too long to simulate.
To sum up, I would need a very relaxed timestep on clock up and down levels, and a very short timestep only at rise/fall transitions.

For this purpose, I wrote a Verilog-A script
- using a timmer function to accurately emulate the reference clock 0V-crossing times (and get the related times with $abstime)
- using @(cross to get the 0V-crossing times of the synthesized clock: but this is not accurate enough (I see simulation noise around 3ps in Conservative). Indeed, the "cross" event occures at the simulation time following the effective 0V-crossing time; this could be sometimes >3ps, far not enough accurate for my purpose.
- I have tried to replace the cross with the "above" function, but it hasn't changed anything, whatever the time_tol value I put (<0.1ps for instance), the result is the same as with the "cross" function and the points are larger than >>0.1ps, weirdly.

So I have decided to give up Verilog-A to measure the delay between my two clocks.
I am currently trying to use the "delay" function of the Cadence Calculator as I guess it will "extrapolate" the time between two simulation points and therefore give a more accurate measurement of the 0V-crossing events, but when I try to compute the delay difference between the synthesized clock and the reference clock, it returns "0".

...

Could you please give me hints to dramatically improve my 0V-crossing time measurements while relaxing the simulation time?
- either by helping me in writing a more suitable Verilog-A script
- or by helping me in using the "delay" function of the calculator
- or maybe by providing me a "magic" Skill function?
Using AMS+Multithread simulator...

Thanks a lot in advance for your help and best regards.

ગુજરાત સ્થાપના દિવસ અંગે PM Modi એ Tweet કરીને ગુજરાતની જનતાને આપી શુભેચ્છાઓ

તો આજે આપણે જોઇએ કે કઇ રાશિનાં જાતકો માટે આ વૅલેન્ટાઇન કેવો રહેશે. તમને પ્રેમનો રંગ મળશે કે પ્રેમ પર પાણી ફરશે.

visit News18 Urdu for latest news, breaking news, news headlines and updates from Lakshdweep on politics, sports, entertainment, cricket, crime and more.

In a region of the world where coal is still king, there is room for renewables. This was a takeaway from the Ministerial Address and Joint Opening Keynote at POWERGEN Asia and Asian Utility Week. The two annual events kicked off Tuesday, Sept. 3, in Kuala Lumpur, Malaysia.

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In a region of the world where coal is still king, there is room for renewables. This was a takeaway from the Ministerial Address and Joint Opening Keynote at POWERGEN Asia and Asian Utility Week. The two annual events kicked off Tuesday, Sept. 3, in Kuala Lumpur, Malaysia.

We spent some time in the 2020 BMW 8-Series Gran Coupe; we drove the 2020 Genesis G70; and coronavirus has affected the 2020 Chevrolet Corvette. It's the Week in Reverse, right here at Motor Authority. The 2020 BMW 8-Series Gran Coupe is a more stylish four-door alternative to the 7-Series. We found it has a Teutonic rumble from its twin-turbo...

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The Redford Center, a California-based non-profit co-founded in 2005 by Robert Redford and his son, James, announced that every morning, from April 15-22, 2019, the organization will post an episode a day of "Renewable Therapy for Climate Anxiety," a conversational mini-series featuring Filmmaker, James Redford, and Matthew Nordan, clean energy investor and managing partner at MNL Partners. In each two-minute installment, the pair explores questions that nag environmentalists when it comes to renewable energy. Watch the first episode below.

A Virginia Tech research team has developed a battery that runs on sugar and has an unmatched energy density, a development that could replace conventional batteries with ones that are cheaper, refillable, and biodegradable.

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The Redford Center, a California-based non-profit co-founded in 2005 by Robert Redford and his son, James, announced that every morning, from April 15-22, 2019, the organization will post an episode a day of "Renewable Therapy for Climate Anxiety," a conversational mini-series featuring Filmmaker, James Redford, and Matthew Nordan, clean energy investor and managing partner at MNL Partners. In each two-minute installment, the pair explores questions that nag environmentalists when it comes to renewable energy. Watch the first episode below.

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In a region of the world where coal is still king, there is room for renewables. This was a takeaway from the Ministerial Address and Joint Opening Keynote at POWERGEN Asia and Asian Utility Week. The two annual events kicked off Tuesday, Sept. 3, in Kuala Lumpur, Malaysia.

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Actress Natalie Portman, environmentalist Robert F. Kennedy, Jr., and other high-profile Harvard University alumni are calling for demonstrations to urge divestment from fossil fuels.

This is a gluten free and naturally sweetened banana bread in a mug.  It is super easy to fix and paleo, too! -- posted by francoroni