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Ngspice F.A.Q.Version 2.0 (ngspice 26 release) |
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Ngspice F.A.Q.Version 2.1 (ngspice-27 release) |
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Maintained by Paolo Nenzi, Holger Vogt |
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Last update: 02-01-2014 |
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Last update: 08-23-2017 |
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This document contains the Frequently Asked Questions (and Answers) |
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for ngspice project. |
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@ -17,9 +17,9 @@ |
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1.5 What is the project's goal? |
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1.6 What you are going to do? |
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1.7 Legal issues |
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1.8 What mailing lists exist for ngspice? |
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1.9 Are the mailing lists archived anywhere? |
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1.10 What newsgroups exist for ngspice? |
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1.8 Discussion groups |
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1.9 What mailing lists exist for ngspice? |
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1.10 Are the mailing lists archived anywhere? |
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1.11 Where can I get a copy of ngspice? |
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1.12 Where should I look on the World Wide Web for ngspice stuff? |
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1.13 Where should I look on the World Wide Web for Spice documentation? |
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@ -73,7 +73,7 @@ |
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and simulation of digital components through an embedded event |
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driven algorithm. |
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The NG prefix has lot of meanings: Next Generation, New Good, etc. |
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The NG prefix has lot of meanings: Next Generation, New (and) Good, etc. |
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Choose or invent the one you prefer. The heart of the project is the |
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ngspice program, with its tremendous advancements. |
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@ -94,6 +94,7 @@ |
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from a tcl script and vector plotted or post processed using tcl. A small |
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GUI may be built by the user to analyze a circuit or a set of circuits. |
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Tclspice is obtained compiling ngspice activating an additional option. |
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This has not been used and tested for some time. |
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1.4 Why resurrecting Berkeley's Spice? |
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@ -158,7 +159,18 @@ |
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for details. |
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1.8 What mailing lists exist for ngspice? |
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1.8 Discussion groups |
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Vivid discussion are going on in the ngspice discussion groups. |
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They are found at https://sourceforge.net/p/ngspice/discussion/ |
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A new group 'ngspice tips and examples' will present interesting |
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ngspice tips (your input is welcome!) |
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1.9 What mailing lists exist for ngspice? |
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Mailing lists have somewhat lost importance compared to the |
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discussion groups described above. |
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There are two general mailing lists dedicated to the ngspice project. |
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@ -187,7 +199,7 @@ |
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http://www.gnu.org/software/mailman/mailman-member |
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1.9 Are the mailing lists archived anywhere ? |
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1.10 Are the mailing lists archived anywhere ? |
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Yes, the lists are archived. There are two places where to look for |
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archives. The project started on the IEEE Central and South Italy |
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@ -197,18 +209,6 @@ |
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http://sourceforge.net/p/ngspice/mailman/ |
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1.10 What newsgroups exist for ngspice? |
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There is no ngspice specific newsgroup. Sourceforge offers additional |
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discussion groups for ngspice, please see |
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http://sourceforge.net/p/ngspice/discussion/ |
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ngspice threads may appear on newsgroups dedicated to circuit |
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simulation and electronic design. |
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1.11 Where can I get a copy of ngspice? |
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You can download ngspice from: |
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@ -240,45 +240,74 @@ |
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The latest version released is: |
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* ngspice-26 (released on 04/01/2013) |
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* ngspice-27 (released on 28/08/2017) |
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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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+ add temperature coefficients for B source |
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+ commands "mdump", "mrdump" to dump matrix to file |
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+ allow `time', `temper', and `hertz' in expressions with behavioral R, L, C |
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+ Enable ctrl-c to interrupt a simulation also for Windows GUI |
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+ tests/bsim4: use the standard CMC model check |
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+ implement exit code for command "quit" |
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+ .nodeset all = value |
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+ memristor code model in extradev |
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+ new scalable diode model including tunnel component |
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+ variable xtrtol may override the XSPICE reduction of trtol |
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+ XSPICE example: delta-sigma converter |
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+ XSPICE: new d_source model |
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+ new option noopac |
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+ bsim3: make additonal parameters accessible with @mxx[par] |
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+ enable Mac OS X compilation |
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+ option reseries = val |
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+ commands "snsave", "snload" |
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+ update hisim to version 2.7.0, new qa tests |
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+ hisimhv update to version 1.2.3, new qa tests |
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+ allow Ctrl-d to quit |
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+ jfet model temperature extension, tcv and bex parameter |
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+ speed up vector handling by hash table for vector address storage and retrieval |
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+ update PSS code |
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+ check for correct inductor coefficients |
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+ add variable 'win_console' |
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+ --enable-relpath configure flag to set preprocessor flag HAS_RELPATH |
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+ sets search path for spinit relativ to current directory |
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+ shared ngspice: search path for spinit: current dir, HOME dir, USERPROFILE dir |
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+ new function stddev to calculate the standard deviation of all elements of a vector |
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+ xspice digital n-input x m-output look-up table gate |
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+ xspice digital model d_lut (digital n-input look-up table gate) |
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+ add variable $sharedmode (if shared ngspice is running), to be used in scripts |
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+ enable msys2 for mingw compilation |
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+ OMP support for bsim3v3.24 model |
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+ bsim3v3.24: add model parameter lmlt (Channel length scaling) |
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+ OMP support for BSIM4.5 model |
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+ update and extension of command 'wrdata' |
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+ option xmu to set damping in trapezoid integration |
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+ command 'linearize' will take time data from transient analysis vector if no circuit is loaded |
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+ two new commands: edisplay and eprvcd |
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+ 'edisplay' will show a list of all event nodes |
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+ 'eprvcd' will print all event nodes in vcd format |
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+ XSPICE 2D and 3D table models |
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+ add variable 'batchmode' which is set when command line option `-b' is active |
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+ enable backquote substitution for Visual Studio console apps |
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+ update how-to-ngspice-vstudio.txt |
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+ update visualc directory and project files, add XSPICE code model generation by VS2015 |
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+ allow access to 4 GB memory of 32 bit ngspice on 64 bit Windows, 8 TB for 64 bit ngspice |
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+ new variable `interactive' |
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+ xspice, introduce cm_message_printf() |
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+ add variable `width' to command "print line ..." |
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+ support msys2 |
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+ favor exponential temperatur equation if all parameters tc1, tc2 and tce are given for R |
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+ move libfftw3 sideways out of the ngspice tree |
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+ remove visual studio 2008 .vcproj files |
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+ visualc/sharedspice.vcxproj, updated and migrated with visual studio 2015 |
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+ `E..table {expr} {pairs}', `G..', allow an optional `=' after `table' |
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+ `E..value=', `G..value=', allow `=' being optional |
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+ introduce TCE, exponential temperature coefficient for R |
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+ allow `temper' to be recognised when preceded by '=' |
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+ allow cross-compilation, especially for MinGW-w64 |
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+ allow "plot xlog ylog" (equiv to "plot loglog") |
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+ extend qa test to hisimhv version 2 |
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+ update hisimhv model to version 2.2.0 |
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+ update hisim model to version 2.8.0 |
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+ .control variable "sqrnoise" to deliver noise data in squared representation |
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+ noise analysis, deliver results in V/sqrt(Hz) and A/sqrt(Hz) |
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+ add delvt0 for bsim4 models |
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+ bug fixes for diode model |
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+ allow a xspice circuit with exclusively xspice event nodes |
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+ man pages for cmpp ngmakeidx and ngproc2mod |
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+ implement `nint()' |
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+ everywhere: ln to the base e, log to the base e, log10 to the base 10 |
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+ allow an optional '=' in ".func foo() = {expr}" |
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+ bsim4, update to version 4.8 |
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+ update hisimhv to version 1.2.4 |
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+ cmc quality check for bsim3 model |
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+ nested indexing for vectors |
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+ option savecurrents to save current through all devices |
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+ option interp to plot interpolated raw file data |
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+ MS VS 2010 project file added for compatibility |
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+ XSPICE: new callback function cm_get_path |
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- Bug fixes: |
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+ many, many ... please see |
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http://ngspice.git.sourceforge.net/git/gitweb.cgi?p=ngspice/ngspice;a=shortlog;pg=0 |
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+ remove memory leaks |
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+ update tclspice for MS Windows |
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+ adms3 removed due to licensing issues |
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+ Many small bugs |
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+ many, many ... as always |
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2.3. What does it look like? |
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@ -331,7 +360,7 @@ |
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This is a one-million-euros question :). |
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Write a mail to the user's list describing the problem and providing |
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Write to the user's discussion group describing the problem and providing |
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information on the type of hardware, the flavour of operating system. |
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@ -351,12 +380,7 @@ |
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4.1. Feedback |
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Send your comments about this F.A.Q. to: |
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Paolo Nenzi <p.nenzi@ieee.org>. |
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Send your comments about ngspice to: |
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Paolo Nenzi <p.nenzi@ieee.org>. |
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https://sourceforge.net/p/ngspice/discussion/127605/ |
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4.2. Formats in which this FAQ is available |
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@ -367,7 +391,8 @@ |
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4.3. Authorship and acknowledgements |
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Parts of the questions and answers are originate from Paolo Nenzi. |
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Parts of the questions and answers are originate from Paolo Nenzi |
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and are updated by Holger Vogt. |
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4.4. Disclaimer and Copyright |
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h_vogt
9 years ago