diff options
Diffstat (limited to 'Windows/spice/doc/NEWS')
-rw-r--r-- | Windows/spice/doc/NEWS | 578 |
1 files changed, 0 insertions, 578 deletions
diff --git a/Windows/spice/doc/NEWS b/Windows/spice/doc/NEWS deleted file mode 100644 index dcbf695a..00000000 --- a/Windows/spice/doc/NEWS +++ /dev/null @@ -1,578 +0,0 @@ -Ngspice-26, Jan 4th, 2014 -============ - -- New features: - + fft command may (optionally) use fftw3 library - + add nint() rounding function - + usage of 'temper' in behavioral devices - + check for soa (safe operating area) in several device models - + library processing rewritten completely to enhance ngspice - compatibility (.lib) - + include file processing rewritten to allow nesting and various - absolute and relative path names (.inc) - + asinh, acosh, atanh functions - + shared ngspice option added: ngspice optionally compiles as - a shared object or dynamic link library - + use a hash table to massively speed up parsing the netlist - + implement a very basic .if/.else block - + implement a signed power function `pwr' for controlled sources - + implement multiplier `m' in F, G source - + apply Area Calculation Method (ACM) to the bsim3v3.3 model - + implement `tc1', `tc2' instance parameters - -- Bug fixes: - + many, many ... please see - http://sourceforge.net/p/ngspice/ngspice/ci/master/tree/ - and check the 'history' button on the upper right. - + removed memory leaks - - -Ngspice-25, Jan 4th, 2013 -============ - -- New features: - + add temperature coefficients for B source - + commands "mdump", "mrdump" to dump matrix to file - + allow `time', `temper', and `hertz' in expressions with behavioral R, L, C - + Enable ctrl-c to interrupt a simulation also for Windows GUI - + tests/bsim4: use the standard CMC model qa check - + implement exit code for command "quit" - + .nodeset all = value - + memristor code model in extradev - + new scalable diode model including tunnel component - + variable xtrtol may override the XSPICE reduction of trtol - + XSPICE example: delta-sigma converter - + XSPICE: new d_source model - + new option noopac - + bsim3: make additonal parameters accessible with @mxx[par] - + enable Mac OS X compilation - + option reseries = val - + commands "snsave", "snload" - + update hisim to version 2.7.0, new qa tests - + hisimhv update to version 1.2.3, new qa tests - + allow Ctrl-d to quit - + jfet model temperature extension, tcv and bex parameter - + speed up vector handling by hash table for vector address storage and retrieval - + update PSS code - - -- Bug fixes: - + many, many ... please see - http://ngspice.git.sourceforge.net/git/gitweb.cgi?p=ngspice/ngspice;a=shortlog;pg=0 - + remove memory leaks - + update tclspice for MS Windows - + adms3 removed due to licensing issues - - -Ngspice-24, Jan 29th, 2012 -============ - -- New features: - + .csparam allows to tranfer a param into a vector in .control ... .endc - + functions floor and ceil - + syntax Gxxx n1 n2 TABLE {expression} = (x0, y0) (x1, y1) (x2, y2) - + syntax Gxxx n1 n2 value={equation} or Exxx n1 n2 value={equation} - + variable strict_errorhandling to exit ngspice with exit code 1 - if any error occurs during circuit parsing - + command altermod allows reading from file - + command "devhelp" to show available devices and describe device parameters - + command "inventory" to print the number of istances of each device. - + function cph(vec) delivers phase from a vector without jumps at +-PI - + enable 64 bit compilation in MS Visual Studio - + --adms3 flag to compile with (experimental) adms code - + still very experimental pss code - + command 'remcirc' to remove a circuit from the list - + command 'wrdata' aknowledges appendwrite and prints complex variables - + allow comment lines inside of command files - + path variable NGSPICE_INPUT - + 'Filesource' code model - -- Bug fixes: - + More on prototypes, type casts, reordering of functions, compiler warnings - + fix a numerical problem in the hisim2 and hisimhv models - + plot i(vdd) from a loaded rawfile - + fix the guard for device generated internal nodes (via CKTmkVolt()) - + reduce memory leaks for command 'reset' - + parameter processing for nested .subckt - + bsim4/b4noi.c: correct init the correlated noise slot in noiseDens and lnNdens vector - + Many small bugs - -Ngspice-23, June 5th, 2011 -============ - -- New features: - + Reduction of trtol to 1 only if 'A' devices in the circuit and xspice is enabled - + command wrs2p to write a s-parameter file using Touchstone vers. 1 format - + d_source d_state d_ram, test cases for those xspice codemodels - + transient noise simulation added to independent voltage and current sources - + Random telegraph noise added to independent voltage and current sources - + 'time = nnn' in stop command added - + random voltage generator option trrandom to independent voltage and current sources - + ngspice build possible in a separate directory (e.g. in ng-spice-rework/release) - + update FIND .. WHEN measurements - + diode & bjt temperature model update with tlev and tlevc - + merge bsim3v1a code with bsim3v0 and bsim3v1s code with bsim3v1 - + bjt2: removed - all GP extensions of this model are now in the bjt model - + HiSIM_HV model vers. 1.2.1 added - + bsim3v32: delvto and mulu0 as instance parameters - + Replace HiSIM1 by HiSIM_2.5.1_Release_20110407 - -- Bug fixes: - + More on prototypes, type casts, reordering of functions, compiler warnings - + allow models like 2N2904 or 2SK136 also in subcircuits - + fix sensitvity calculation (for the dc-2+.cir testcase) - + allow multiple call to setup w/ correct node collapsing - + Many small bugs - -Ngspice-22, Sept 26th, 2010 -============ - -- New features: - + OpenMP multicore support for BSIM3, BSIM4, and BSIMSOI4 - + reinstate {$var} expansion in interactive interpreter - + .TITLE line added - + update to 'spectrum' script - + par('expression') in .four, .plot, .print, .meas, .save commands - + command 'option' for use in spinit, .spiceinit, and in scripts - + adms procedure updated - + new random number generator, random functions sunif() and sgauss() - + ngspice manual updated - -- Bug fixes: - + Major code cleanup to reduce compiler/linker warnings: ansi function prototypes, - void/char pointers to named pointers, explicit type casts and many more - + Many small bugs - - -Ng-spice-rework-21, Jun3, 13th 2010 -============ - -- Updated Devices: BSIMSOI 4.3.1 - -- New features: - + Compatibility: C, L, R, devices and E, G sources with expressions - Variables HERTZ, TIME, TEMPER added - + E, G sources with pwl function - + New manual - + Plotting with Gnuplot, - + Writing wrdata for simple text table to file - + .measure improved - + transmission line models improved - -- Bug fixes: - + Many small bugs, memory leaks, memory overflows - -Ng-spice-rework-20, November, 16th 2009 -============ - -Ngspice release 20 is the second release of the simulator in 2009. - -- Fixes: model names starting with a number (1n4001) are now correctly parsed. - The .global command has been reinstated (it was previously disabled) and - error messages now display the corresponding line numberin the input deck. -- New Features: .measure command for transient, ac and dc analyses (still not - complete, e.g. DERIV is missing). -- Devices: Updated BISM4 model to revision 4.6.5. Added PWL (PieceWise Linear) - functionality for B (arbitrary generator) sources. - - -Ng-spice-rework-19, April, 23rd 2009 -============ - -Ngspice release 19 came early after release 18. It reveals an important work -in compile scripts, many bug fixes in memory management, interface, and work in device models. - -- Compile scripts: tclspice and ADMS compiling fixes. Architecture compiling - fixes for SunOS, MS Visual Studio, MINGW, Cygwin. -- Memory management: fixed memory leaks, modifies memory management for - MS Windows, integration of espice bugfixes and enhancements, bug fixes in - plots and cli interface. -- Rework of BSim models, integration of EPFL-EKV model V2.63, ADMS models - mextram, hicum0, hicum2. - - -Ng-spice-rework-18 -============ - -Rework-18 is introduces several new features into ngspice. This is a major -release that comes after more than three years. During the silent years -ngspice developers worked in CVS to stabilize and introduce new features -into the simulator. - -- Tclspice simulator library has been merged with ngspice. Now you can - compile ngapice or tclspice by asserting a configure switch. See README.tcl -- New options have been introduced: brief, listing, autostop and scale -- Support for .lib file has been introduced. This allows the use of - third party model libraries in ngspice. -- .measure statements: avg, integ, rms, max, min, delay, param -- .global statements t support for global nodes whose name is not expanded - when flattening the netlist. -- .func macros for inlining functions into netlists. -- Improved the numparam library to support fully parametrized netlists. -- BSIM model binning. -- new multi-input gate VCVS using XSPICE extensions. - - -Ng-spice-rework-17 -============ - -This is a bug fix release. Previous release tarball did not included -an include file necessary for compiling numparam library. - - -Ng-spice-rework-16 -============ - -Rework-16 comes out after almost one year of CVS development (from -15-fixedRC3). This release improves ngspice in three ways: - -- Bug fixing: most of the bugs that affected rework-15 have been fixed, - thus ngspice is more stable, especially the xspice extension, the - subcircuit (X devices) handling and the numparam library. - -- New features: netlist syntax has been expandend allowing for end-of-line - comments. A ".global" card has beed added to define global nodes, i.e. - nodes that are not expanded in subcircuits. It is possible to define TC - for resistors on the instance line. The editline library can be used - instead of readline (no more GPL license violation). - -- Porting: ngspice now works (with xspice extension) on Windows using - MINGW/MSYS. - - -Ng-spice-rework-15 -============ - -Rework-15 release is a giant leap forward for ngspice. It incorporates -many (read most) of the improvements implemented in tclspice during the -two years long "sleep" of ngspice and adds many others. The incomplete -list of new features incorporated are: - - - Xspice simulator (with codemodel dynamic loading support): - a mixed signal simulator built upon spice3. - - - Cider simulator: - a mixed level simulator built upon spice3. - - - Numparam library: - a library that allows for parameter substitution at netlist level. - - - Improved models: - Diode model includes periphery effects and high level of injection effects, - BJT and BJT2 enhanced. - BSIM3 now includes ACM. - BSIM4 implementation corrected. - - -New models: - VBIC (3 Terminals, no excess phase and thermal network), - HiSIM. - - - Frontend leaks closed. - Now frontend works as it should. - - - Many new example file. - - - Xgraph plotting program included. - - -Ng-spice-rework-14 -============ - -This is a major release in terms of bug-fixes. Some enhancements -have been included: BSIM4 model and support for EKV model. The -source code for the latter must be obtained from EKV web site -(see DEVICE for more info). To enable EKV support you have -to obtain the code first and then use the configure switch -"--enable-ekv". - -The spice code contains an option to debug frontend code, now -this is available in configure as "--enable-ftedebug". - - - -Ng-spice-rework-13 -============ - -This is a major release in terms of fixes and enhancements. -A garbage collector support has been added. If the configuration -script detects that you have installed GC (Bohem-Weiser conservative -garbage collector), it will use it. Some memory leaks have been -fixed too. - -Enhancements to the code comes from Alan's contribute code, a -description of improvements follows (extracted form Alan's mail): - -Output File Format Changes - - - (NOTE: Do not rely on this, we may revert to the old format - in the next release). - - Text mode .OP results even though "rawfile" written. - - Internal device nodes are not saved to "rawfile" (reduces - file size). Optionally, these internal nodes can be replaced - by device currents and saved. - - -DC Convergence Enhancements - - - "Source-Stepping" algorithm modified with a "Dynamic" step size. - After each successful step, the node voltages are saved, the - source-factor is increased by the step-factor, and the step-factor - is increased (for the next step). If the step fails, i.e. the - circuit does not converge, the source-factor is set to the value - from the previous successful step, the previously stored node - voltages are restored, the step-factor is reduced, the source - factor is increased by this smaller step-factor, and convergence - is attempted again. - - Same thing done for "Gmin-stepping" algorithm. - - "Gshunt" option added. This sets the "diagGmin" variable used in - the gmin-stepping algorithm to a non-zero value for the final - solution. (Normally this is set to zero for the final solution). - This helps for circuits with floating nodes (and for some others - too). - - The Gmin implementation across the substrate diodes of MOS1, MOS2, - MOS3, MOS6 and BSIM3 devices, and across BJT base-emitter and - base-collector diodes, was incorrect. Correcting this dramatically - improved DC convergence. (I think this also affects BSIM1 and 2 - but I haven't fixed them yet !) - - The gm, gmb and gds calculations in the MOS3 model were all wrong. - The device equations were fixed, leading to much improved - convergence. - - The Vcrit value used for diode voltage limiting was calculated - without taking into account the device area (and in some cases - without using the temperature corrected saturation current). - This could cause floating point overflows, especially in device - models designed to be scaled by a small area, e.g. 2u by 2u diodes - (area=4e-12). This is now fixed for Diode, BJT, MOS1, MOS2, and - MOS3 models. - - The diode voltage limiting was modified to add negative voltage - limiting. Negative diode voltages are now limited to 3*Vdp-10, - where Vdp is the voltage from the previous iteration. If Vdp is - positive, then the voltage is limited to -10V. This prevents some - more floating point overflows. (Actually, I'm still playing with - the best values for this). - - The Spice3 "fix" for the MOS3 gds discontinuity between the - linear and saturated regions only works if the VMAX parameter - is non-zero. A "tweak" has been added for the VMAX=0 case. - - -Transient Convergence Enhancements - - - Temperature correction of various diode capacitances was implemented - slightly incorrectly, leading to capacitance discontinuities in - simulations at temperatures other than nominal. This affected the - Diode and MOS3 models. - - A mistake in the implementation of the MOS3 source-bulk capacitance - model resulted in a charge storage discontinuity. This has been fixed. - - The level 2 MOSFET model seems to calculate Von and Vth values for - the threshold and subthreshold values respectively, but then uses - Vbin to calculate the Vdsat voltage used to find the drain current. - However, a jump statement uses Von to decide that the device is in - the "cutoff" region, which means that when this jump allows the - drain current to be calculated, Vdsat can already be well above - zero. This leads to a discontinuity of drain current with respect - to gate voltage. The code is now modified to use Vbin for the jump - decision. It looks like the code should actually use Vth as the - threshold voltage, but since other SPICE simulators follow the - original Berkeley code, this was left alone. - - -New Model Parameters - - - A device multiplier instance parameter "M" (i.e. M devices in - parallel) was added to the MOS1,2,3 and BSIM3 mosfet models. - - -Input Read-in and Checking - - - Numbers beginning with a + sign got the input routine confused. - Fixed now. - - Attempts to nodeset (or .IC) non-existent nodes are flagged with a - warning. - - PWL statements on Voltage or Current sources are now checked for - "non-increasing" time-points at the start of the simulation. - Previously each time-point was checked as it was reached during - the simulation, which could be very annoying if you made a mistake - which caused the simulation to fail after hours of run-time. - - A check which was performed at the end of each sub-circuit expansion - was moved to the top level. This check makes sure that all sub-circuits - have been defined, but in its original position, it meant that if a - sub-circuit included ANY .MODEL statements at all, then ALL the models - called in that sub-circuit must also be defined within that - sub-circuit. Now SPICE behaves as expected, i.e. a subcircuit may - define its own models, but may also use models defined at any level - above. - - -Miscellaneous Fixes/Enhancements - - - MOS devices reported only half of the Meyer capacitances, and did not - include overlap capacitances, when reporting to the .OP printout, or - when storing device capacitances to the "rawfile". - - The ideal switch devices had no time-step control to stop their - controlling voltages/currents overshooting the switching thresholds. - The time-step control has been modified to use the last two time - points to estimate if the next one will move the controlling - voltage/current past a switching threshold. If this looks likely, - then the time-step is reduced. - - The "rawfile" writing routines have been modified to print the - "reference value" to the console during the simulation. This lets - the user see exactly how far and how fast the simulation is - proceeding. - - .OP printout tidied up a lot to make the printout clearer. - - Analysis order changed to fix a "feature" where, if you ask for - a .OP and a .TRAN in the same simulation, the node voltages - printed out correspond to the .OP, but the device data was from - the last timepoint of the .TRAN - - -Etc. - - - There are other minor bug fixes, and changes to reduce compiler - warnings. There are probably some more significant fixes which - I've forgotten :-) - - -Ng-spice-rework-12 -============ -Arno did a great work this summer! -The pole-zero analysis has been corrected. The error was introduced -in an attempt to eliminate compiler warnings. The source has been -reworked and info file have been updated. As you may see, a new dir -called "spicelib" has been created, another step toward the separation -of the simulator from the frontend. - -Ng-spice-rework-11 -============ - -Resistor code (device) has been modified to conform to spice3 device -coding standard. -A new step function (U2) has been introduced. -Documentation updated. - -Ng-spice-rework-10 -============ - -Added BSIM4 model and closed a couple of serious bugs. Added DEVICES -file to distribution. This file contains the status of device models -in this simulator. Read it, this file can save you a lot of time. - -Ng-spice-rework-9 -============ - -Thanks to Arno Peters now all device models are dynamically loaded on -demand. They are linked as shared libraries. The next step is the -dlopen() one which will make possible to link devices without any -recompilation. - - - -Ng-spice-rework-8 -============ - -Applied Arno's patch. - -From his mail message: - -Hi Paolo, - -I have prepared a source cleaning patch. - -Features: - - + patches don't get polluted with differences between automatically - generated Makefile.am files. Usually these make up the biggest part - of the patches. This allows me to read the patch on the mailing - list instead of sifting through 90% redundant and irrelevant changes. - - + the shell script autogen.sh automatically regenerates the required - files if the user has automake, autoconf and libtool installed. - - + this feature is only valuable to developers, not to end users. - - -Usage of this patch, once incorporated: - - # create a working tree to work from - cp -a ng-spice-rework-x ng-spice - - [ Changes made to ng-spice ] - - # clean up all the automatically generated files - cd ng-spice; make maintainer-clean - - # extract the differences - diff -ruN ng-spice-rework-x ng-spice > my.patch - - [ Patch sent to ng-spice mailing list or you ] - - # incorporate changes into the tree - cd ng-spice-rework-x; patch -p1 < my.patch - - # update the automatically generated files - cd ng-spice-rework-x; sh autogen.sh - - - - -Ng-spice-rework-7 (22 Mar 2000) -============ - -Bug fix release - - - -Ng-spice-rework-6 (29 Jan 2000) -============ - -This porting includes: - -1) BSIM3V3.1 model as level 49. This is the version modified by Serban -Popescu which understands the M parameter and implements HDIF. - -2) BSIM3V3.2 model al Level 50. This is the standard Berkeley version. - -3) Now the resistor model can accepts two different values for DC and -AC resistance. - - - -Ng-spice-rework-5 and 5_2 (Jan 2000) -============ - -Internal development release, buggy and not working. - -Ng-spice-rework-4 (22/12/99) -============ - -This porting includes a new feature: - -1) dynamically loading of some device code as an experimental feature -for the future GPL simulator. Thanks to Arno Peters and Manu Rouat. - -2) Patched the following bug (thanks to Andrew Tuckey for having -supplied the patch). - - * Wsw (current controlled switch) in subckt, parsing bug. - * scale factor in arbitrary source. - * bug in noise analysis. - * save segmentation faults. - - |