Printing noise summary to file for specific corner/sweep point
I need to print the noise summary of a large hbnoise simulation to file. The file is about 100 MB. Currently I do this by running ADE assembler on a single point and then pasting the following into the...
View Articlehow to check netlist when using LSCS mode
Hi,I am running simulation in maestor with LSCS mode. My virtuoso version is IC618-64b.500.18.When sim finishes, i try to use right click on the result to show the netlist, but the shown netlist is not...
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Is it possible to change the icons on the taskbar/panel?
If I open multiple schematic and layout, it is a bit hard to differentiate the icons, at least for me.Is it possible to change it?for PVS also.I am aware this is more into linux question, but I hope I...
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How to perform transient noise analysis at a specified time？
Hello！Is thereany way to perform transient noise analysis at a specified time？For example, the stop time in tran is 50u. I want to start the transient noise analysis at 40u for that transient noise...
View ArticleMulti-fingers in MOSFET in Series configuration in Cadence Virtuoso Schematic
I am trying to figure out to set multi-fingers (nf = 3) for MOSFET (both p-mos & n-mos). I know I can increase the length directly. As connecting MOSFET in series increases length, can I somehow...
View ArticleRunning ocean jobs without starting X server
Dear All,I am necroposting about the following subject. Since the post (https://community.cadence.com/cadence_technology_forums/f/custom-ic-design/23238/running-ocean-jobs-without-starting-x-server) is...
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How to obtain Discrete-Time (DT) response from a switched-cap (SC) circuit...
Hello everybody!Before I start my questions, first I have to cite from Mr. Ken Kundert’s excellent paper “sc-filters - Simulating with Cadence SpectreRF” the following:“Usually, with...
View ArticleQuantus: extraction to DSPF fails if "Delete X prefix" option is used
Hi! My extractions to DSPF are failing with the newest Quantus release (21.2.0-p060). Apparently, the support for removal of the "X" prefix for instances in the generated DSPF is broken, and qrcfs...
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Spectre: is it possible to define a deterministic start time for the PSS beat...
Hi! Is it possible to define a fixed (deterministic) start time for the beat period in a PSS (shooting) analysis?The documentation states (see below) that the beat period starts after...
View Articlenet annotation of subcircuit layouts
I'm doing the top level routing of a block which has many subcircuits. At the current level of hierarchy (top level), I can see the net names annotated on the metal layers at the top level. Also the...
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How to execute R-keys in virtuoso xl?
Hi All,I have a layout binkey listed just like the following. list("<Key>R11" "geScroll(nil \"\" nil)") list("<Key>R13" "geScroll(nil \"sw\" nil)") list("<Key>R15" "geScroll(nil...
View ArticleTrends of analog fast spices
Hi all,How do you have the impression from use with each tools? For me, the APS=specter has a good accuracy, and AFS is fast and cheep without usability.Feel free to tell me your impression.cadenceAPS,...
View ArticleHow to use save/restore feature with 1st run result
Hi all,I found a usage of "save and restore" in ADE as below.https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1Od0000000nSpJEAU&pageName=ArticleContent1st run: 0 - 10ms, saved at...
View ArticleSystemVerilog generate loop does not compile modules defined inside loop
Hello,I am using Virtuoso IC6.1.8-64b.500.23, Spectre 21.1.0.303.isr5, and Xcelium 21.09-s005 with AMS simulator. I have a SystemVerilog code that simply creates multiple sine waves as shown...
View ArticleSweep a device parameter during a transient using a voltage net
Dear All,That you know, is it possible in Spectre to set the value of an instance parameter (e.g. “W”) of a MOS using the voltage of a certain net during transient simulation?I tried to create a...
View ArticleCan I generate a cross section diagram from my layout?
I would like to produce a cross section diagram of the PDK.Is it possible to generate it?
View ArticleHow do I open F3 options windows in center monitor on a multi-monitor system?
Currently I'm using Cadence Virtuoso XL on laptop that's running three monitors. The monitors are setup from left-to-right. The left-side monitor is the tiny laptop monitor that I use for email-only....
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Post Layout simulation at different temperature
Hello,I am using the Assura package with the Cadence Virtuoso,When I do the layout extraction from Quantos, I see that it will be performed at specific temperature, by default is at room temperature...
View ArticleHow to use ?result t_resultName in calcVal?
Hi,in Assembler I want to refer to a signal output "/VISENS" of an earlier run, done in "Interactive.NomSweep". So I want to create in another test an output with this expression:calcVal("/VISENS"...
View ArticleCustom vs PNR layout
I am trying to generate a spef for custom layout.For a layout generated from Innovus and imported into Virtuoso the cellview and instances have conns and terminal properties. How can I get these same...
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