![]() using the IO redirection notation of "<") Spice 3 defaults to batch mode (-i overrides). Note that if the input source is not a terminal ( e.g. keyboard) or reads the given input file and performs the analyses specified output is either Spice2-like line-printer plots ("ascii plots") or a Spice rawfile. Spice 3 reads the default input source ( e.g. The program is being run on a terminal with mfb name term. It is not found then in the user's home directory. Spice and Nutmeg try to find the file in the current directory, and if Nutmeg only.ĭon't try to source the file ".spiceinit" upon startup. Nutmeg ĭon't try to load the default data file ("rawspice.raw") if no other files are given. See the appropriate documentation onĬommand Synopsis Spice Using X on a workstation, the DISPLAY variable should already be set if you want toĭisplay graphics on a system different from the one you are running Spice 3 or Nutmeg on,ĭISPLAY should be of the form " machine:0.0". Otherwise, a graphics-terminal independent interface (MFB) is used. Spice and Nutmeg use the X Window System for plotting if they find the environment variableĭISPLAY. Standard output, which may also be produced by Spice 3 with the "-b" command line option. Note that the raw output file is different from the data that Spice2 writes to the ![]() In nutmeg where this is not the case, Spice-only commands have been marked with an asterisk Most of the commands available in the interactive Spice 3 front end are available ![]() Interactive Spice 3 can plot data from a simulation on a graphics terminal or a workstationĭisplay. Write command in an interactive Spice 3 session. Nutmeg will read in the "raw" data output file created by Spice -r or with the Theįront-end may be run as a separate "stand-alone" program under the name Nutmeg. Spice-compatible simulator for Mac OS X Version: 3f5 2.10.Spice 3 consists of a simulator and a front-end for data analysis and plotting. WilliamsĪs its name suggests, MacSpice is an implementation for the Mac of the Berkeley Spice 3f5 electronic circuit simulator. However, MacSpice is not merely a 'port' of the Berkeley code, it incorporates many improvements ranging from bug-fixes to entirely new graphics, algorithms and solution strategies. Spice is not easy to use, but it is a powerful tool once the initial hurdles have been overcome and the MacSpice website provides support and tutorials. SPICE is a general-purpose circuit simulation program for nonlinear dc, nonlinear transient, and linear ac analyses.Ĭircuit simulation is a way of building and testing virtual models of electronic devices. ![]() ![]() It is usually cheaper and quicker to simulate a design than to build a prototype. MacSpice, like most circuit simulators, requires a text-file description of the circuit as input. This 'netlist' is a list of components and the nodes they connect to. Users may prepare netlists with a text editor, or derive them from a circuit diagram using a third-party schematic-capture application. MacSpice then builds a numerical model of the circuit and analyses this.Ī command interpreter (shell) is used to specify the types of analyses that are required and how the results should be processed, saved or displayed. The high quality of the MacSpice command interpreter makes the automation of tasks straightforward. ![]()
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