Multi-dimensional bus notation in Virtuoso Schematic Viewer
Hello,I have an instance that has an 8-bit input pin bus IN<7:0>. This instance is instantiated 1024 times as MY_INST<1023:0>.Is there a way to assign a bus to the input pin in this...
View ArticleDC Convergence issues with custom device model
Hello, I am trying to simulate a circuit with newly developed custom device model but am facing DC convergence issues which I have not been able to resolve with the available online resource on the...
View ArticleProblem with DC convergence CUSTOM model
Hello, I am trying to simulate a circuit with newly developed custom device model but am facing DC convergence issues which I have not been able to resolve with the available online resource on the...
View Articlere-use of impulse response models of n-ports
HiMy intention is to speed up my simulations (envlp) by re-use of impulse response models of the n-ports and I was hoping to get some help on how to preceed!During the envlp sweeps, I see that the...
View ArticleIs it possible when schematic changes in virtuso can I get some alarm or alert?
Hello.I want to make skill program that getting some alam (using external script) when schematic changes or user click the 'check and save' button.It will be better ,if possible, whenever user click...
View Articlesum of sampled_noise output spectrum, how to access the phase information?
Hi all,I am trying to simulate the pnoise of a circuit whose output of interest is then passed through a high pass FIR filter x(n)-x(n-1)+x(n-2)-x(n-3)+x(n-4)-...-x(n-L-1) with L even number.Because...
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Changing Default Simulator from APS to Spectre
HiI'm looking for a way to change the default simulator from APS to Spectre:The dialog is from the ADE L environment (I know this is obsolete, but that's what we're still using for now), menu "setup...
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Dim color invert
Hi everyone,I'm trying to set dark mode to the virtuoso windows, and this is what I got.I did this by inverting all screen content, and changing some drf colors seems to work okey.The only thing is...
View Articlenetlisting
Hi,I have a cell name "block" with a layout, schematic and symbol view in the library. I instantiated this in a schematic and the netlister netlists this cell as "block_schematic". Why does this happen...
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Group as Parametric Set grayed out in Design Variables, but functional in...
Hi, in one particular maestro setup, I'm able to use Group as Parametric Set in Global Variables, but not in Design Variables. What's the issue?Thanks
View ArticleHow to compare the before and after extraction values of resistance and...
Hi, I made a layout of a circuit which has a capacitance used in it. The capacitance used is a nmos capacitor. Is there any way I can compare the values of this capacitor before and after extraction...
View ArticleQuery hierarchical Spectre model for used subckt
Greetings,The Problem:I am using Spectre model library which consist of certain base models, which depending on design variable or model parameter can include a supplementary subckt. These models can...
View ArticleFind the Last Wave Transition Delay Time
Hi,I'm trying to determine the time between the last edge transition after I set a control signal which based off a timing variable I've placed into the test bench.I have attempted to use the cross...
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How to set different views for the same cell in different instances?
Hello! I am using hierarchy editor editing to perform post-layout simulation. There are two same cell but different instances, I0 and I11, in my schematic as shown below.The cell ''my_SAR_logic_2''...
View ArticleIs there a way to check edge to edge separation using Assura 4.16
Hi,I'm trying to flag the distance between two edges using Assura, but I can't seem to find a way to do it.The sep command only works with polygons and i don't want to apply a grow to the edge because...
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RUN PLAN : The 'analyses' section of the runplan test does not reflect the...
Hello,I just started using 'RUNPLAN' option in Maestro. One thing I noted when certain changes are made in 'analysis' section in the active setup, they are not reflected in the 'runplan'. I am...
View ArticleRUN PLAN : Is there a way to know the total number of "point sweeps" in a...
Hello , I am wondering if there is there a way to know the total number of "point sweeps" in a given runplan similar to how the active setup shows in the run summary. It is a bit difficult when there...
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problems with pspice model when simulating with spectre
I simulated the IMW120R020M1H and IMW120R045M1 pspice models from Infenion using the spectre simulator , but encountered the warning （ASL-6246）: " Internal (bsource )" 501 : I6.X$M009F.X$M01LF.G01NW :...
View ArticlePlot Vdsat from DC sweep analysis?
Hi,I managed to get e.g. Vdsat or Vdsat_margin from the pure DC Operating point.For this I used the results browser to get the required calculator expression, and and up in this...
View ArticleHierarchical Net Name Preservation in Quantus
Hi everyone,We use the qreduce command in Quantus to apply frequency based reduction on an RCC DSPF netlist (generated by a different extraction tool). The options we use for the DSPF netlist change...
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