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PVS Extraction Issue - Not finding PVS or QRC tab in Virtuoso Layout to do...
Hello,I am using AMS 0.35um (C35B4C3) Process Hit Kit.I finished a layout in Virtuoso Layout L. It does not have a schematic associated with it. I want to extract the layout and run simulation to...
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spicein different results
Hi,I am trying to import a cdl netlist. When I use the GUI in virtuoso (ICADVM20.1), the generated schematic is correct. When I use the command line (spiceIn -param with parameter file saved from the...
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Search for all instances of a specific cell within a hierarchy
I'm trying to find a functionality I expect exists in Cadence but I don't see it in the documentation. I want to find all occurrences of a specific cell within a hierarchy. For example, I have a cell...
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leafValue data type processing in Cadence Virtuoso
Hello,I am using Cadence Virtuoso IC6.8-64b.500.6I am running a simulation over multiple corners from ADE Assembler. I have used calculation over corner to calculate some functions. As seen from the...
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paralleled inductors in cadence virtuoso
I just started learning cadence virtuoso.When I connect two inductors in parallel in the circuit schematic, the simulation will report an error：Fatal error found by spectre during topology check....
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Sampled pnoise simulation, sampling frequency > pss frequency ?
Simulating sampled noise in pss+pnoise, it seems that sampling frequency must be "pss-frequency". Is it possible that sampling frequency is twice larger than pss-frequency?For example, a choping...
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.cdsinit setting to open assembler/explorer, by default, on a new window
Hello,Is there a .cdsinit setting to open assembler/explorer, by default, on a new window?Thank youBest RegardsAldo
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Package Library download issue
Hi all,For the bonding Diagram, I want to download package library from europractrice website and use it.However, after downloading the gds of package library, when i import it to some library all the...
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Several problems with interfacing Spectre through Matlab
Dear CommunityI am trying to use Matlab's Spectre toolbox to read out simulation results. I am using Matlab 2021a and Spectre version 20.10.186In particular, I want the following outputs:Many operating...
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L293DNE Quadruple Half-H Drivers
The L293 and L293D are high-current quadruple half-H drivers. These devices are intended to power a variety of inductive loads, including relays, solenoids, DC and bipolar stepping motors, and other...
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Determine corner-dependent setting during operating point calculation with...
Hello,I have a circuit, which can be controlled in discrete steps to compensate for different process corners. I had the idea to create an additional Veriloga component, which determines the correct...
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Transient simulation - adding noise after steady state
Hi,We have a fairly large mixed-signal block, where we would like to get some transient simulation data with noise. However, to save simulation time, we would like to run up to steady-state first,...
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Prevent Maestro from reporting undefined design variables
Hello,I have a cell view which contains standard elements (resistor, capacitor,...) with variables. I want to set these variables with a model file. However, everytime when I start the simulation,...
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Joining a line between two points on the output waveform in Cadence Virtuoso...
Hello,I would like to ask if it is possible to create a straight line on the output waveform that joins two selected points from the waveform by using the Cadence calculator toolThank youBest Regards
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Virtuoso Layout delete vertices
HiWeird issue - haven't done layout in a couple of months but it didn't used to ever do this. Now when I select things to delete (say a pin that's sitting on top of a rectangle) and I have the pin...
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voltus option power_enable_state_propagation?
Could I some information on voltus option power_enable_state_propagation? UserGuide has no meaningful definition of what this does exactly.Thanks,Kurt
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5G signal sources and simulation inside Spectre / Virtuoso
Hello All,I am using IC618 & Spectre ISR20do we have signal sources for 5G signal simulations inside Spectre / Virtuoso like there is a LTE source in RFLIB ?Also does ICADVM20 version offer any...
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Virtuoso layout hierarchical copy contains mysterious residue from other...
Hi,I have never seen such a weird issue with hierarchical copy in Virtuoso. Let me explain.We have a brand new library and brand new layout cellview (say "Lib_debug/debug_cellview/layout"), inside...
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It's the same problem as the person above. Please tell me the solution
https://community.cadence.com/cadence_technology_forums/f/custom-ic-design/40377/reduce-the-spacing-between-metals-while-placing-stack-auto-via
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Overriding specifications with VAR("...") expressions
Hello,I have an AGC amplifier whose noise specifications depends on the gain step I'm at, temperature and corners.I initially tackled this with some global variables that computes for me my noise spec...
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