Commit Graph

6211 Commits

Author SHA1 Message Date
Holger Vogt 1b3e192bfd errno needs to be nulled in Linux.
Its previous value will be returned after checking.
2021-09-29 20:21:39 +02:00
Holger Vogt e84c210876 'Option interp' and command 'stop' have been incompatible.
Allow both in a run.
Issue note (however not checked) that stop time data have to fit
the inpolated times.
2021-09-29 20:21:23 +02:00
Holger Vogt e35e3e3b33 prevent a crash, e.g. when incompatible 'option interp'
is set and 'stop' is called.
2021-09-29 20:20:52 +02:00
Holger Vogt a180eb60d5 command 'wrnodev'
Write current node voltages to file in format .ic=value
The file may be used to set initial conditions for another simulation,
e.g. ac at a specific time step of a transient simulation.
2021-09-29 20:20:27 +02:00
Holger Vogt 7f4fc2948b Add a line feed to make message more readable. 2021-09-29 20:20:00 +02:00
Holger Vogt fac1d3a79c ASRC (B-Source) error message is cryptic, as it does not tell
which B-Source failed.
Add a hint to the ASRC error message on the name of the
B-Source instance.
2021-09-29 20:19:38 +02:00
Holger Vogt 18478380ad Revise the SOA and add new parameters:
pd_max id_max idr_max te_max rth_ext derating
rth_ext is currently not used
2021-09-29 20:17:55 +02:00
Holger Vogt 3f322e1954 Add a check for sys/sysctrl.h, which has been declared deprecated,
and which may not be available (in the future) on some systems.
2021-09-29 20:17:23 +02:00
Holger Vogt 3b245ddd82 VDMOS, prepare SOA with new parameters
Model parameters pd_max, id_max, idr_max, and te_max
(power dissipated, drain current, drain reverse current, temperature)
2021-09-29 20:17:03 +02:00
Holger Vogt 4a1f7f950c spinit: add optran to the standard inits 2021-09-29 20:16:09 +02:00
Holger Vogt 7c84e3f993 SOA for bipolar
Replace pow_max by pd_max
2021-09-29 20:15:41 +02:00
Holger Vogt f06496c912 Enable command 'optran' in spinit or .spiceinit,
when the circuit is not yet loaded.
Then the optran data are stored in static variables,
until optran is called again with arg NULL from inp.c,
to set the data in ft_curckt->ci_defTask.
2021-09-29 20:15:13 +02:00
Holger Vogt a225ce2aaf List definition needs spaces between ( and next token,
and between token and )

Update to comment.
2021-09-29 20:14:45 +02:00
Holger Vogt 493cf73f7f optran is only selected when the 'optran' command has been processed.
If not, the call to the OPtran() function returns the previous
'converged' value.
2021-09-29 20:12:52 +02:00
Holger Vogt 7f1fdd3934 Don't do optran, if command optran is not given. 2021-09-29 20:12:31 +02:00
Holger Vogt 711157e85d Update comment: 0 is no initial iteration 2021-09-29 20:12:03 +02:00
Holger Vogt f0cb886af1 Add command 'write_ic'
Write out the right hand side status of the matrix in format
    .ic = V(node_xx)
    This may be possible at the end of a simulation or after a 'stop'
    of the simulation, which may be resumed again afterwars. This
    status may be used to start another simulation with these
    parameters by inluding into the netlist.
2021-09-29 20:11:45 +02:00
Holger Vogt 0e72287af7 Add command 'write_ic'
Write out the right hand side status of the matrix in format
.ic = V(node_xx)
This may be possible at the end of a simulation or after a 'stop'
of the simulation, which may be resumed again afterwars. This
status may be used to start another simulation with these
parameters by inluding into the netlist.
2021-09-29 20:11:13 +02:00
Holger Vogt 2ef3f66f96 if 'set ngdebug' print out transient initial conditions also with UIC set. 2021-09-29 20:10:25 +02:00
Holger Vogt 41ead284f3 make the error detection work properly 2021-09-29 20:10:02 +02:00
Holger Vogt 4e03efacb7 Use InpEvaluate() instead of strtod to enable ngspice numbers
with scale factors Meg k m u n p f etc.
2021-09-29 20:09:22 +02:00
Holger Vogt 3be5926f2c Reverse stepsize and finaltime in optran command,
stepsize first as in tran command.
2021-09-29 20:08:51 +02:00
Holger Vogt bca099ca29 prevent crash if first breakpoint is beyond optran max time 2021-09-29 20:08:28 +02:00
Holger Vogt b07a54b8e1 test of supply ramping 2021-09-29 20:07:42 +02:00
Holger Vogt 7de526237e upon finishing 'optran', restore old CKTstep
remove unused
2021-09-29 20:06:35 +02:00
Holger Vogt 0eafec254e safeguard command 'optran' against circuit no being loaded 2021-09-29 20:05:56 +02:00
Holger Vogt cf61e1e564 add missing header 2021-09-29 20:05:28 +02:00
Holger Vogt 83e223fafc header for optran 2021-09-29 20:05:08 +02:00
Holger Vogt a20afc54a5 When we sre ready, reset CKTmaxstep to its previous value 2021-09-29 20:04:26 +02:00
Holger Vogt 3956095484 set maxstepsize to stepsize 2021-09-29 20:04:08 +02:00
Holger Vogt ecdb3b9eb4 set the task values, not the ckt values,
because task is called only afterwards when
the simulation command is given.
2021-09-29 20:03:31 +02:00
Holger Vogt fd36eb552f set stepsize 2021-09-29 20:02:11 +02:00
Holger Vogt ab6224767b Add command 'optran' to set 6 flags for transient op 2021-09-29 20:01:44 +02:00
Holger Vogt df0792818f Transient op calculation added to the standard operating point code.
When standard iteration, gmin stepping and source stepping fail,
try a transient simulation (like tran with uic option) to
determine the op. Implemented for AC and Tran simulation.
2021-09-29 20:00:29 +02:00
Holger Vogt a08e6a0676 Add new SOA parameters (safe operating area) for BJT.
We now scan for max of Ic, Ib, power, taking into
account the max allowed temperature, using the thermal
resistance rth0 model parameter between juntion and ambient.

Two user options are there: If rth0 is given, we calculate
a derating of the max power allowed.
Without a constant max power according to model param pow_max
is assumed.

The new model parameters for the bipolar model are:
pow_max, ic_max, ib_max, te_max, and rth0, in addition
to the already existing vbe_max, vbc_max, adn vce_max.
2021-09-29 19:59:58 +02:00
Holger Vogt 1084b4205c Allow global .temp in addition to instance parameter 'temp'.
Update to comments.
2021-09-29 19:59:28 +02:00
Holger Vogt 9221df234c Patch to allow (and ignore) leading or trailing commas
when putting {} around tokens. Tested with PWL voltage source.

Patch has been suggested by Liqian Zhang
2021-09-29 19:58:36 +02:00
Holger Vogt 33571877dc Some update to SOA for a diode:
Limit output to four digits
Add power and temperature limits.
Derating with self-heating, or with fixed temperature,
or no derating at all, selectable by setting model parameters.
Example file: SOA plotted as frame, with diode current.
2021-09-29 19:58:11 +02:00
Holger Vogt 759f4f5f84 Make the output a little more verbose:
add terminal voltage to Id, Te, and Pd outputs.
Compare SOA data to terminal voltage, not (unknown) junction voltage.
2021-09-29 19:57:54 +02:00
Holger Vogt 9c8380a031 Enhance the SOA (safe operating area) operations
Parameters id_max, pd_max and te_max have been added
for current, power, and temperature to the already existing
fv_max and bv_max (max forward and backward volteges).
2021-09-29 19:57:34 +02:00
Holger Vogt e5fdb4c742 Patch sorts 1 byte vars in sequence,
to save some memory.
Patch #107 provided by Florian Ballenegger
2021-09-29 19:57:08 +02:00
Carsten Schoenert 2c2e21a80c Smal typo fixup s/currntly/currently 2021-08-08 11:56:30 +02:00
Holger Vogt 605f59b417 Fix a bug with the alter statement
lower case for device name, when sent from shared ngspice
or from interactive mode.
2021-08-08 10:21:22 +02:00
Holger Vogt 9a2d968577 When transferring boolean data over the ABI, keep them as boolean types, not integer
Replace the type of all boolean variables around the ABI by NG_BOOL.
NG_BOOL is typedefed to _Bool, when compiling shared ngspice. When
sharedspice.h is use externally NG_BOOL is typdefed to bool
2021-08-03 15:57:58 +02:00
Carsten Schoenert 61b5c0563b src/Makefile.am: Adopt used variables for lib versioning
A small adjustment so the configured ABI version from configure.ac will
get used for creating the libngspice library.
2021-08-03 15:56:02 +02:00
Holger Vogt 4258fe94b5 Add library versioning according to
https://www.gnu.org/software/libtool/manual/html_node/Libtool-versioning.html#Libtool-versioning
Add package versioning with m4 macros
2021-08-03 15:55:16 +02:00
Holger Vogt 6aac403ab0 XSPICE delay: add some more safeguards 2021-08-03 15:53:42 +02:00
Holger Vogt 4feb43e067 Prepare ngspice-35 2021-07-22 20:38:08 +02:00
Holger Vogt 4dbd8b7f9a Preliminary fix for the 'interpolate' function.
Interpolation of 1D vectors is o.k. now,
multi-dimensional vectors are not (yet) supported.
2021-07-22 20:37:57 +02:00
Holger Vogt 1977128380 Prevent crash when CIDER diode models are used.
There is no third node in NUMD or NUMD2, so don't set
GENnode(fast)[i]. This patch fixes a bug introduced in
4895a4b5a ("Diode model with selfheating option", 2021-04-11)
2021-07-20 14:24:43 +02:00