Open Source Desktop Operating Systems Electronic Design Automation (EDA) Software

Ngspice project aims to improve the spice3f5 circuit simulator.

TinyCAD is a program for drawing electrical circuit diagrams commonly known as schematic drawings. It supports standard and custom symbol libraries. It supports PCB layout programs with several netlist formats and can also produce SPICE simulation netlists. It is also often used to draw one-line diagrams, block diagrams, and presentation drawings. The source code for TinyCAD is now on GitHub: https://github.com/matt123p/TinyCAD Online documentation can be found here: https://github.com/matt123p/TinyCAD/wiki

Gerbv is an open source Gerber file (RS-274X only) viewer. Gerbv lets you load several files on top of each other, do measurements on the displayed image, etc. Besides viewing Gerbers, you may also view Excellon drill files as well as pick-place file

Icarus Verilog is an open source Verilog compiler that supports the IEEE-1364 Verilog HDL including IEEE1364-2005 plus extensions.

PCB is a tool for the layout of printed circuit boards. PCB can produce industry standard RS-274X and Excellon NC-Drill format output for submission to board manufacturers.

AUDio MEasurement System - a multi-platfrom system for audio measurement through sound card in the PC. It contains: generator, oscilloscope, audio spectrum analyzer (FFT) and frequency sweep plot. Compiles and works under Linux, Windows and MacOS. Source code is available in "git" and as ZIP snapshot. For more information see README.md

SPECI-SPICE is a subset of SPICE intended to run on low powered computers like Amstrad CPC, ZX Spectrum, CP/M machines, old PC machines, some programmable calculators,etc. by keeping most important functionality of SPICE 2.

Xschem is a schematic capture program, it allows to create a hierarchical representation of circuits with a top down approach . By focusing on interconnections, hierarchy and properties a complex system (IC) can be described in terms of simpler building blocks. A VHDL, Verilog or Spice netlist can be generated from the drawn schematic, allowing the simulation of the circuit. Key feature of the program is its drawing engine written in C and using directly the Xlib drawing primitives; this gives top speed performance, even on very big circuits. I have succesfully managed to simulate complete VLSI projects with this tool, both digital (Verilog / VHDL) and analog (Spice). Schematics can be printed in SVG, PNG, PDF, formats. XSCHEM runs on Linux or other Unix-likes with Xorg server and on Windows with the Cygwin layer and required tools installed. Can be found also on github: https://github.com/StefanSchippers/xschem

QSapecNG is a Qt-based symbolic analysis program for linear analog circuits. In fact, it consists of two indipendently parts: the SapecNG framework engine, and the application gui QSapecNG.

Wcalc is a tool for the analysis and synthesis of electronic components. Some of the models include coupled microstrip lines, single layer air core solenoid inductors, etc. Wcalc can analyze the electrical parameters based on the physical dimensions a

ADMS is a code generator that converts electrical compact device models specified in high-level description language into ready-to-compile c code for the API of spice simulators. Repository migrated to: https://github.com/Qucs/ADMS For checkout do: git clone https://github.com/Qucs/ADMS.git

A UNIX/X11 circuit drawing application with schematic capture. Features user-definable parts libraries and fully hierarchical SPICE netlist generation.

An Electronic Definition Interchange Format (EDIF) parser which allows exports from one EDA schematic capture system (such as OrCad) for import into another (such as KiCad)

VTracer is a Verilog Testbench developer aid. Contains well documented Verilog-Perl co-simulation environment (TCP sockets based), structural Verilog parser, demo Testbenches.

The sigrok project aims at creating a portable, cross-platform, Free/Libre/Open-Source signal analysis software suite that supports various device types, such as logic analyzers, MSOs, oscilloscopes, multimeters, LCR meters, sound level meters, thermometers, anemometers, light meters, dataloggers, function generators, power supplies, GPIB interfaces, and more.

TkGate is a event driven digital circuit simulator with a tcl/tk-based graphical editor. TkGate supports a wide range of primitive circuit elements as well as user-defined modules for hierarchical design.

The comprehensive C++ library MGEN for IC layout and connectivity comes with the X11/Motif full custom layout editor PARIS and the powerful waveform viewer/processor MANIAC. Industry proven, it is the basis for layout generators, placers, routers etc.

The MP4Free project provides a simulation, analysis and exploration platform for multi-processor system-on-chip applications at variable level of abstraction, providing also a comprehensive component library.

"kdiv" is a generator of routines for optimized division by an integer constant based on the work presented in H.S. Warren's "Hacker's Delight". "kdiv" can be used to emit a generic assembly or C implementation of (signed/unsigned) division.

The Open SystemC Initiative (OSCI) is a collaborative effort to support and advance SystemC as a de facto standard for system-level design. SystemC is an interoperable, C++ SoC/IP modeling platform for fast system-level design and verification

Spice+ is a general-purpose circuit simulation program, based directly on SPICE 3F.5 from the University of California (Berkeley). An improved version of Spice for DOS, Windows and Linux. http://spicep.sourceforge.net

SystemC-WMS (Wave Mixed Signal Simulator) is a class library that extends the standard SystemC kernel to allow modeling and simulation of complex systems comprising analog parts from heterogeneous domain (electrical, mechanical, thermal, ...).

Alliance CAD System is a free set of EDA tools and portable cell libraries for VLSI design. It covers the design flow from VHDL up to layout. It includes VHDL simulator, RTL synthesis, place and route, netlist extractor, DRC, layout editor.

ArchC is an open-source architecture description language based on SystemC. Its goal is to provide designers with a tool to evaluate new ideas in processor and ISA design, memory hierarchy, etc. and other aspects of computer architecture research.

This is a tool developed by 2nd yr CSE B.Techs at IIT Guwahati.We have designed a software in C++ language which,given some design specifications of an analog amplifier generates a netlist file in the current folder which can be opened in LTSpice.