Prepare ngspice-36
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FAQ
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FAQ
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Ngspice F.A.Q.Version 2.6 (ngspice-35 release)
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Ngspice F.A.Q.Version 2.7 (ngspice-36 release)
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Maintained by Holger Vogt
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Last update: 07-20-2021
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Last update: 12-18-2021
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This document contains the Frequently Asked Questions (and Answers)
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for ngspice project.
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The latest version released is:
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* ngspice-35 (released on 07/31/2021)
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* ngspice-36 (released on 01/01/2022)
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2.2. What are the latest features in the current release?
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- New features:
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+ Improved VBIC model
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+ Get the vector type automatically, if db, ph, cph are applied.
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+ Enable finding 'spinit' if its path contains spaces.
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+ Increase buffer size for command 'listing' to 4096 bytes.
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+ Add compatibility modes for EAGLE (ea) and Spectre (spe).
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+ Add parameter 'plain' to 'plot' command.
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+ Add variables 'plainplot', 'plainwrite', 'plainlet'
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+ Add RF bipolar model HICUM 2.4 to the ngspice C sources.
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+ Add charge formulation for non-linear capacitors.
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+ Remove outdated code from contrib and unsupported directories.
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+ When installing ngspice executable, do not install the headers.
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+ Add support for tc1, tc2, and m for behavioral resistors,
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which use the B source internally.
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+ Add supporting E_constant Vconst 0 TABLE {Max(V(DP)-V(GN),0)}=((20,120)).
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+ Remove the XSPICE limitation of the current source flag "current".
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+ Remove the XSPICE dependency of the phase parameter for the
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independent current source.
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+ Drastically reduce the memory requirements if there is a PDK with
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a lot of binning models (e.g. the SkyWater PDK).
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+ Update to admst: Enhance the Verilog A compatibility.
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+ Add most recent PSP102, Mextram504, BSIMBULK, and BSIMCMG models
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to the ngspice adms sources.
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+ Model checking for BSIM4.5 will only write to file if an excursion
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is detected (still to be added to the other BSIM models)
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+ Many code updates not visible to the user, but enhancing stability
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and efficiency
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+ Add function 'integ' to control language.
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+ New dot command .probe
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for current and differential voltage measurements.
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+ Allow math characters in node names.
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+ Enable x/y contour plots for 2d Cider using gnuplot.
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+ Update to bipolar model, incl. IBE and IBC parameters.
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+ Add garbage collector to cpl code to remove any mem leakage.
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+ Enable .save within subcircuits.
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+ New compile scripts for macOS, for Apple clang and Homebrew gcc.
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gcc allows compiling a fully featured ngspice (incl. OpenMP) on MAC.
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+ Add RKM notation (e.g. 4k7) if compat mode LT.
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+ Add 'µ' as special character in netlists.
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+ Add parameter 'r' to command 'listing' for (runable).
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+ Fix several issues with CIDER.
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+ New command 'wrnodev' to print matrix RHS in form of .ic = V(node_xx).
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+ Transient operating pointadded to gmin and source stepping.
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+ More SOA parameters on more devices (V, I, T, P).
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- Bug fixes:
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+ many bugs fixed and code improvements (see bugs 523 and up)
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+ many bugs fixed and code improvements (see bugs 557 and up)
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+ making error messages more verbose
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+ memory leaks removed
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4.4. Disclaimer and Copyright
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Copyright: Holger Vogt, 2021
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Copyright: Holger Vogt, 2022
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License: Creative Commons Attribution Share-Alike (CC-BY-SA) v4.0.
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This document is provided as is. The information in it is not
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warranted to be correct: you use it at your own risk.
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