Commit Graph

780 Commits

Author SHA1 Message Date
Pascal Kuthe b28708cf82 prototype for Verilog-A integration using OSDI and OpenVAF
This initial prototype is capable of performing DC, transient and AC
analysis. Not all features of OSDI are supported yet and there are still
some open questions regarding ngspice integration. However many usecase
already work very well and a large amount of CMC models are supported.
The biggest missing feature right now is noise analysis.

test: test case for diode DC working with SH

test: add transient analysis to osdi_diode test

test: added docu text to osdi_diode test

test: added test case directories

fix: bug in osdi_load

test: small change to netlist

fix: implement DEVunsetup

fix: correct behaviour for MODEINITSMSIG

test: osdi diode enable all analysis modes

removed netlist

ignoring test results

added the build of the diode shared object to the python test script

deleting old stuff and always rebuilding the shared object

added diode_va.c to the repo

preparing CI

Create .gitlab-ci.yml file

(testing) add res, cap and multiple devices test

feat: use osdi command to load files

Previously OSDI shared object files were loaded from fixed directories.
This was unreliable, inconvenient and caused conflicts with XSPICE.

This commit remove the old loading mechanism and instead introduces the
`osdi` command that can load (a list of) osdi object files (like the
codemodel command for XSPICE). A typical usecase will use this as a
precommand in the netlist:

.control
pre_osdi foo.osdi
.endc

If the specified file is a relative path it is first resolved relative
to the parent directory of the netlist. If the osdi command is invoked
from the interactive prompt the file is resolved relative to the current
working directory instead.

This commit also moves osdi from the devices folder to the root src
folder like xspice. This better reflects the role of the code as users
may otherthwise (mistakenly) assume that osdi is just another
handwritten model.

test: update tests to new command

fix: do not ignore first parameter

feat: implement log message callback

fix: don't generate ddt matrix/rhs in DC sweep

fix: missing linker script

update to osdi 0.3

(testing) simplify test cases, fix bug

(testing) multiple devices test improvement

(testig) node collapsing bugfix

test: increase tolerance in tests

feat: update to newest OSDI header

fix: temperature update dt behaviour

fix: ignored models

fix: compilation script

fix: allow hicum/l2 to compile with older c++ compilers

fix: set required compiler flags for osdi

fix: disable x by default

fix: add missing SPICE functions

fix: update diode to latest ngspice version

feat: implement python CMC test runner

doc: Add README_OSDI.md

fix: make testing script work with python version before 3.9

fix: free of undefined local variable

fix: do not calculate time derivative during tran op

update osdi version

fixes for compilation on windows
2022-12-16 21:55:17 +01:00
Holger Vogt c8ba722117 Add a function ddt (derivative versus time) to the B-source funtion parser. 2022-12-04 10:41:06 +01:00
Brian Taylor 44c69f5bf5 Handle cases where logicexp has a timing model but no pindly. This is rare, only 22 tests from the digital libraries. Move digital examples, add missing .spiceint file. 2022-11-28 22:33:00 +01:00
Holger Vogt d763b39ec3 Add a new compatibility mode xs (for XSPICE) 2022-11-24 14:43:16 +01:00
Holger Vogt f2be3d681d Allow resetting the limit for warning mesaages, when a new run is started. 2022-11-20 15:07:46 +01:00
Brian Taylor 9d239dc2f7 Move f_logicexp, f_pindly calls to u_process_instance. Use u_add_instance to copy gate instances and models to the replacement cards. 2022-11-07 14:45:57 +01:00
Brian Taylor 67369f1c67 Initial logicexp parser and gate generator. 2022-11-07 14:45:45 +01:00
Holger Vogt 9bab229e7b We are developing towards ngspice-39 2022-11-06 11:31:21 +01:00
Holger Vogt 5bf6894d58 Add info on new function ngCM_Input_Path 2022-11-06 11:30:00 +01:00
Holger Vogt 159e36d23b Add function
char* ngCM_Input_Path(const char* path);
to shared  ngspice API
to send file path for code model input files (e.g. dsource).
Such path cannot be extracted automatically when netlist has
been sent by ngSpice_Circ
2022-10-26 23:34:10 +02:00
Holger Vogt 3864edb941 Typo 2022-10-19 12:25:00 +02:00
Holger Vogt ce82fb22e2 prepare ngspice-38 2022-10-17 20:32:06 +02:00
Giles Atkinson 118b997642 Add two functions to the Code Model Library: cm_get_node_name()
makes circuit node names available to diagnostics, while
cm_probe_node() is needed for a bidirectional A/D bridge.
2022-09-23 13:15:07 +02:00
Holger Vogt 8dba70c7cc add parameter description 2022-09-18 11:10:59 +02:00
Giles Atkinson 148cecf919 Insert XSPICE bridging devices automatically when an analogue node
has the same name as an XSPICE event node (including digital nodes).
The function Evtcheck_nodes() is replaced by a new version in its
own file.
2022-08-31 15:33:59 +02:00
Brian Taylor 15d987ad0f Check for name collisions between nodes generated during translation from Pspice to Xspice and instance pin or subckt port names. These are reported as ERRRORs. 2022-08-06 10:42:43 +02:00
Holger Vogt eee07be10d Improve (a little) the plotting of digital data with plot option digiplot:
Repair scaling on MS Windows:
Suppress y axis lettering and unit:
Allow or dis-allow grid.
2022-07-20 15:11:51 +02:00
Holger Vogt 86dedbd1f5 Add a new function char* gettok_np(char** s)
which finds a token, while scanning over (), like
they were white spaces. It also proceeds with s while
still finding (), (which gettok_noparens does not do).
2022-07-06 18:43:48 +02:00
Brian Taylor b64f684a62 Remove debug code. 2022-07-01 15:55:00 +02:00
Brian Taylor a7b6cb9af7 Create pin and port lists only when variable ps_pins_and_ports is set != 0. 2022-07-01 15:54:08 +02:00
Brian Taylor 55a5c0cb0a Generate lists of subckt ports indicating direction (in, out, inout.) 2022-07-01 15:52:01 +02:00
Brian Taylor 701ed7beb0 Replace Pspice U* and .model cards with their Xspice equivalent statements. There are still memory leaks which will be plugged next. The .subckts have only digital ports, which will need to addressed for mixed A/D designs. 2022-07-01 15:50:22 +02:00
Brian Taylor 4de648c8de Trial run at scanning cards for Pspice U* devices and models. #define INTEGRATE_UDEVICES to turn it on. No new cards are created yet, just lots of debugging info. 2022-07-01 15:49:39 +02:00
Brian Taylor 5b332a1aba Initial files for translating Pspice u.. instances and timing models into Xspice equivalents. Standard gates, tristate gates, dff, jkff, dlatch are supported. Compound gates and pullup/down are not done. Makefile and frontend/inpcom.c changes have not been finished. These modifications will be needed to complete integration. 2022-07-01 15:48:43 +02:00
holger 72d3f12ab5 add new header spardefs.h to noinst_HEADERS 2022-05-16 16:30:26 +02:00
Holger Vogt 1140af3e8b Prepare ngspice-37 2022-05-16 16:30:09 +02:00
Holger Vogt cf62c69aef remove numerous unsigned int vs. int warnings
by setting all variables to type int.
Remove redundant function declarations by remmoving some includes
in span.c and vsrcdefs.h
In tmalloc convert int to size_t
2022-04-29 23:22:05 +02:00
Holger Vogt 7703c2d370 Add a function itoa10 and use it
instead of non-standard itoa.
2022-04-25 13:35:23 +02:00
Holger Vogt ae221a70c2 Remove a typo: runable --> runnable 2022-04-15 10:52:56 +02:00
Alessio Cacciatori abd5b5ea04 S-parameters in ngspice
With this commit the patch provided by Alessio Cacchiatori the S-parameter is completed:
Noise simulation added with C matrix output
Y and Z matrix output enabled

To allow compiling with gcc, the dense.h inline functions have been put into denseinlines.h
2022-03-29 09:06:10 +02:00
Alessio Cacciatori 2c10c4aebd S parameter simulation
Command '.sp'
arbitrary number of ports
ports made with modified VSRC

Patch provided by Alessio Cacciatori
https://sourceforge.net/p/ngspice/discussion/127605/thread/7a2655c86f/
2022-02-17 15:48:00 +01:00
Holger Vogt 0eb272243f Enable RKM notation also for inductors (e.g. 1u2 for 1.2u) 2022-02-07 16:00:29 +01:00
Holger Vogt 4f82a24df2 Add parameter 'isgrid' to plotting of arcs.
Smithgrid and polar plots could not discern between xgridwidth and
xbrushwidth. This is now available, similar to straight line plotting.
Tested also for PS and SVG.
2022-02-01 12:23:29 +01:00
Holger Vogt 64dba93b93 We are now developing ngspice-36+ 2022-01-09 11:57:05 +01:00
Holger Vogt f0e9a35eb6 Add 'esave' command to save only specific event nodes.
Add a prompt for esave/eprint/eprvcd.
2022-01-09 10:58:38 +01:00
Holger Vogt cb0d8f18dc Prepare for ngspice-36 2021-12-18 13:47:43 +01:00
Holger Vogt 1605d293d0 Add function integ to control language
Trapezoidal rule for integrating a vector.
2021-12-13 21:49:45 +01:00
Holger Vogt e93a19e3e8 Allow math characters in node names
Add a function ft_getpnames_quotes()
It puts quotes " around tokens xxx, when these are enclosed as
V(xxx) and contain arithmetic characters. V(R*C) becomes
V("R*C"). After settig up the parse tree, the quotes are removed again.
Thus these math character remain part of the node name and are not
parsed as parts of an equation.
2021-12-13 21:41:16 +01:00
Holger Vogt 90377dcff9 struct TSKtask: group all single bit fields together 2021-12-13 21:40:38 +01:00
Brian Taylor 38848259e4 With the ngspice gnuplot command, enable x/y contour plots for 2d Cider save file data. Usage: gnuplot <file> xycontour <expr>. xycontour is a new flag which is ignored if the plot data is not from 2d Cider. For contours, only a single plotarg <expr> is allowed. With <expr1> vs <expr2>, only <expr1> is plotted and <expr2> is ignored. 2021-10-30 13:21:32 +02:00
Holger Vogt 7c38699cd7 Add missing function nghash_delete_special(),
developed for branch gc-local
2021-10-30 10:39:19 +02:00
Holger Vogt daa3609e58 Enable RKM notation for R and C, when ngbehavior LT is selected.
Add 2 evaluation functions specific for R and C respectively.
R has code letters L, R, K, M, G, T enabled. M here is Meg!
C has code letters p, n, u or µ, m, F. F here is unity, femto is
not available, m is still milli!
Two examples files show all cases.
2021-09-29 20:31:14 +02:00
Holger Vogt 5d116d1fb9 command listing: add option r (runable)
listing r > $inputdir/mycirc_runable.cir
will save the expanded netlist without line numbers,
ready to be sourced again and run in ngspice.
2021-09-29 20:29:26 +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 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 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
Holger Vogt 4feb43e067 Prepare ngspice-35 2021-07-22 20:38:08 +02:00
Holger Vogt 8eeb924460 CIDER: Enable printing either binary or ascii data output to file.
Patch provided by Brian Taylor, see
(https://sourceforge.net/p/ngspice/mailman/message/37309841/)
2021-07-05 14:31:21 +02:00
Holger Vogt 03517ae86c Define the function DevFinalize as used in the previous commit. 2021-07-05 14:22:55 +02:00
Holger Vogt a6079781ea Fix previous commit, enable name upgrade for Linux and other non-Win OSs 2021-07-05 14:22:10 +02:00