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9426 Commits

Author SHA1 Message Date
Holger Vogt 2d3e032a3f Remove memory leak. 2026-03-20 16:59:22 +01:00
Holger Vogt af67662a3f In case of transient simulation error, bail out when fft is called. 2026-03-20 16:59:11 +01:00
geraldfournier 65e5ccb7bb Make fft scaling independent from rounding behaviour for odd data. 
Add a time slot to fft span.
 2026-03-20 13:37:06 +01:00
dwarning b3a78b02cc Special Nyquist scaling only for even length. 
Let nyquist bin not empty for odd vector
 2026-03-20 13:33:39 +01:00
Ralf Habacker 278841972c Add command line support for the 'version [-s|-f]' command 
With this commit the mentioned ngspice command(s) are
also available on the command line. See ngspice --help
for more information.
 2026-03-20 10:58:48 +01:00
Holger Vogt 88895f1394 Parameter np=xx added. xx may be a number or auto2n. 
If np is not set, 'linearize' behaves as usual, (TSTOP-TSTART)/TSTEP + 1.5
If np=<number>, integer <number> is used
If np=auto2n, the number of points is 2^n, close to (TSTOP-TSTART)/TSTEP.
 2026-03-20 10:58:36 +01:00
dwarning a0bf7f7e8a Diode soft recovery model based on the idea of A. Buermen with iterated charge node for diffusion charge and model parameter Vp. 
Small simplifications in AC model and capacitance reporting are made. No self-heating for this effect. Pole-Zero and distortion
analysis is not implemented for this model extension.
 2026-03-20 10:58:16 +01:00
Holger Vogt 38ce7778b3 Update 2 to warning messages if osdi or code model files cannot be loaded 2026-03-20 10:57:37 +01:00
Holger Vogt 7d0dce0e70 Update to warning messages if osdi or code model files cannot be loaded 2026-03-20 10:57:23 +01:00
Holger Vogt b5112b18e5 FM and FC exchange place in the parameter sequence of SFFM voltage 
and current source, to become compatible with standard SPICE.
Fixes bug 832.
 2026-03-20 10:57:00 +01:00
Holger Vogt f86018afe9 Do not give up when non-existing fft window is chosen, 
but issue a message and go on.
 2026-03-20 10:43:44 +01:00
Enrique 7a76310b6b Added parameter numPeriod so that the user can select the number of fundamental frequency periods used in the detection of the fundamental frequency and its harmonics. This is usefull when trying to recover the fundamental frequency and its harmonics from a noisy signal, like the output of a DCDC converter 2026-03-20 10:40:15 +01:00
Holger Vogt c22d6c772d prepare for binning of N devices 2026-03-20 10:40:00 +01:00
Holger Vogt 973f3fd57c Improve th error message: add the failing option's name. 2026-03-20 10:39:35 +01:00
Holger Vogt fb501b5131 Prevent potential buffer s overflow by limiting the characters written. 
Use vsnprintf instead of vsprintf.
 2026-03-20 10:39:10 +01:00
Holger Vogt e613d5b8db Improve error message, no output of line string if not 'set ngdebug' 2026-03-20 10:38:51 +01:00
Holger Vogt 603089b29f Re-enable not setting lower case if commands from spinit or .spiceinit 2026-03-20 10:38:21 +01:00
Holger Vogt a165ab5c28 Allow Cd as a valid C reference designator for a capacitor, 
i.e. lower-casing of node names,
by re-organizing the setting of lower cases in the netlist:
No lower-casing for cd only while in a .control section.
 2026-03-20 10:37:42 +01:00
Holger Vogt 24008efc83 Improve error message. 2026-03-20 10:37:10 +01:00
Holger Vogt a92eea2dfb Add warning message if E or H poly source has multiplier m 2026-03-20 10:36:47 +01:00
Holger Vogt 48a37be31c Add parameter m (multiplier), while translating from G or F source 
to code model spice2poly
 2026-03-20 10:36:32 +01:00
Holger Vogt 5b39c73205 Add a parameter m (output multiplicator) 
to spice2poly code model.
 2026-03-20 10:36:00 +01:00
Holger Vogt d13cd984f4 Special treatment while spiltting multiple .param lines, if .param is a .func 2026-03-20 10:35:32 +01:00
Holger Vogt 7474cd70d0 Ignore .hdl and .biaswarn commands. 2026-03-20 10:34:45 +01:00
Holger Vogt dd2a5fd062 Move comment 2026-03-20 10:34:24 +01:00
Holger Vogt 7159d6aa4b V Pulse delivers erratic outputs, when not parameterized properly. 
Update the pulse generation: negative TR, TF, PW, PER not possible,
get default values instead. 0 PW is allowed.

Defaults are:
TR negative or 0 --> TR = ckt->CKTstep
TF negative or 0 --> TF = ckt->CKTstep
PW < 0 --> PW = 0
PER <= 0 --> PER = TR + TF + PW */
 2026-03-20 10:33:54 +01:00
Holger Vogt 527cc86969 Prepare for instance parameter 'dtemp', required by commercial PDKs. 
Not yet support in the model, silently ignored.
 2026-03-20 10:33:20 +01:00
Holger Vogt 96df01db06 Prepare for instance parameter 'dtemp', required by commercial PDKs. 
Not yet support in the model, silently ignored.
 2026-03-20 10:33:08 +01:00
Holger Vogt f8a4195e8e Prepare for instance parameter 'dtemp', required by commercial PDKs. 
Not yet support in the model, silently ignored.
 2026-03-20 10:32:54 +01:00
Holger Vogt 51e46d5e00 Prepare BSIM4.7 for instance flag dtemp 
FIXME: The dtemp value is not yet linked to the model!
 2026-03-20 10:32:46 +01:00
Holger Vogt 84f87aeafd Improve error message by adding the sourcing netlist line 2026-03-20 10:31:34 +01:00
Holger Vogt 3fcfc4b989 Improve error message 2026-03-20 10:30:01 +01:00
Holger Vogt e3bb6afb5d Add ifspec.ifs to MS Visual C project 2026-03-20 10:28:59 +01:00
Holger Vogt 81d3812db0 Add a user-settable variable measureprec to set the number of digits 
when printing the measure outputs.
Internally this is a global variable measure_precision.
Enable all measure commands to recognize measure_precision when
printing an output.
Default value is 5 (yielding 6 digits after .?).
 2026-03-20 10:28:28 +01:00
Holger Vogt 9ac5bda207 After an ac simulation, a tran measurement causes a segfault. 
A check prevents this issue.
 2026-02-03 22:38:56 +01:00
Holger Vogt 417c52ee5c Remove compiler warnings 2026-02-03 15:05:24 +01:00
Holger Vogt ab87bd57a4 Re-enable compiling with clang 
Patch thanks to Gon Solo, issue 826
 2026-02-03 14:25:18 +01:00
Holger Vogt afb17cb6c7 New analogue and digital device models from TI contain 
the token GND in their subcircuit. Up to now ngspice has
declared GND as global and replaced it by 0.

Now, if PS is selected as compat mode, GND is not
declared as global, and is not replaced inside of a subcircuit.
 2026-02-03 14:25:09 +01:00
Holger Vogt ab03cc94c0 Using mtimeavg 2026-02-03 14:23:41 +01:00
Holger Vogt b25ff08307 Moving window filtering with function 'newvec = mtimeavg(vec)' 
Window of fixed time width given by 'set mtimeavgwindow=400u'
Length and scale of newvec resembles the original vetor vec.
Large vec and large mtimeavgwindow take their time.
OpenMP is used if available.
 2026-02-03 14:23:32 +01:00
Holger Vogt 84ce2b4084 Exclude B voltage source, whan '.probe alli' is used. 
It already gets a bxx#branch for current measurement.
 2026-02-03 14:23:22 +01:00
dwarning 1601571432 Correct vgs assignment - bug found by K. OHara 2026-02-03 14:23:14 +01:00
Holger Vogt 86ca3948eb Better graphics 2026-02-03 14:23:07 +01:00
dwarning 23eafe9978 remove redundant definition and unused variable 2026-02-03 14:22:57 +01:00
dwarning 81894e0c52 Minor change that helps VADistiller. 2026-02-03 14:22:48 +01:00
dwarning 06aa4989a6 convert to lower case for spice2 input and remove few warnings 2026-02-03 14:22:37 +01:00
dwarning 48438ba736 rm ngnutmeg from build list of old apps 2026-02-03 14:22:29 +01:00
Holger Vogt cd6ca5e86a re-enable maling old app ngsconvert 
ngnutmeg is still defect
 2026-02-03 14:22:21 +01:00
Holger Vogt 4fd68ba901 enable simulation with 'option newtrunc' 2026-02-03 14:22:12 +01:00
dwarning 1841709eab more realistic default values for case to ambient thermal resistance and device transconductances 2026-02-03 14:22:02 +01:00