Simple and intuitive 2D vector drawing for electronics and not only.
A multiplatform vector drawing program with a complete library of electronic symbols. Schematics and drawings are stored in a very compact text format. There is no netlist concept behind the drawings (so no simulation, and this is a choice) but this allows a great graphical flexibility and ease of use, making FidoCadJ the perfect tool for exchange sketches in forum and newsgroup discussions with a few clicks. Drawings can be exported in several graphic formats, such as pdf. Follow the development live on Twitter: https://twitter.com/davbucci
JMCAD is an program for the modeling and simulation of complex dynamic systems. This includes the ability to construct and simulate block diagrams. The visual block diagram interface offers a simple method for constructing, modifying and maintaining complex system models. The simulation engine provides fast and accurate solutions for linear, nonlinear, continuous time, discrete time, time varying and hybrid system designs. With JMCAD, users can quickly develop software or "virtual" prototypes of systems or processes to demonstrate their behavior prior to building physical prototypes. The user builds his system model by selecting predefined blocks from a block library and simply wiring the blocks together. Each block of the diagram performs a function. Users can also create custom blocks in Java and add them to the JMCAD block library. JMCAD is a block diagram language for creating complex nonlinear dynamic systems.
The Future of the Java Circuit Simulator
Circuitmod is a circuit simulator that extend the capacity of the original Falstad's Java Circuit Simulator into CMOS Chips, Led Arrays, Led Matrix and PIC Programming. The Horizon is limitless. Try today.
The DigitalSimulator is your Virtual Electronics Lab, allowing you to design, simulate and output your digital circuit board designs.
Eclipse Verilog editor is a plugin for the Eclipse IDE. It provides Verilog(IEEE-1364) and VHDL language specific code viewer, contents outline, code assist etc. It helps coding and debugging in hardware development based on Verilog or VHDL.
Modelio-Open is a project hosting a set of open source extensions (SoaML, SysML and UML Testing Profile) for a previous version (1.2) of the Modelio Free tool . Currently, the lastest version (2.x) of Modelio modeling and generation tool is available at http://modelio.org/downloads/download-modelio.html. All extensions are downloadable at http://forge.modelio.org/projects.
Digital Circuits Design and Simulation
Digital Logic Design is a Software tool for designing and simulating digital circuits. It provides digital parts ranging from simple gates to Arithmetic Logic Unit. In this software, circuit can easily be converted into a reusable Module. A Module may be used to built more complex circuits like CPU. The circuit working can be analyzed by using output parts like LEDs, Seven Segment Display and Digital Oscilloscope etc. provided in the software. This Software may be used by professionals, hobbyists and students alike. The teachers may incorporate this software in their courses like Digital Logic and Computer Design, Computer Architecture, Computer Organization and Embedded Systems. In this software, a circuit may be designed using graphical components or may be entered as Sum-of-Product Boolean form.
The Boolean Expression Reducer provides the user with various tools to visualize and analyze boolean expressions. Given an expression, it also reduces it to its Sum of Products and Product of Sums form.
Netsim is a mobile ad hoc network simulator targeted at large heterogeneous node configurations. It is written in Java and is easily extensible through its modular concept.
Visually build and simulate boolean logic circuits
Visually build boolean logic circuits and then simulate their operation. Create custom components from user-designed circuits. Written in Java for cross-platform functionality. NOTE: This project has moved to Bitbucket at http://bitbucket.org/kwellwood/circuitsandbox
The aim of this project is to develop a GDSII viewer by using Java programming language. Efforts will be made especially on ease-of-use, efficiency, and capacity.
Integrated Development Environment (IDE) for learning HDL
UMHDL is an educational Integrated Development Environment (IDE) intended for learning digital designing with programmable logic devices using Hardware Description Languages (HDL) through simulation. It is an open-source application created at the Miguel Hernández University (UMH). The aim for the UMHDL development was to have a graphical application that allows learning the VHDL language without licensing restrictions (using some existing open-source tools) and requiring few resources. So, the interface developed acts as a front-end that allows writing code (with syntax highlighting), invokes an external VHDL compiler and simulator (such as GHDL), and displays the result of the simulation graphically as waveforms (invoking to GTKWave).
JQM - Java Quine McCluskey for minimization of Boolean functions.
Java Quine McCluskey implements the Quine McCluskey algorithm with Petrick’s Method (or the method of prime implicants) for minimization of Boolean functions. This software can be used both for learning and solving real problems. As learning/teaching tool it presents not only the results, but also how the problem was solved as well as how to use Karnaugh Maps to solve the problem. Up to sixteen functions of sixteen variables can be minimized. A graphical interface is provided for entering and editing the truth table that can be saved and loaded. The results can be exported in HTML format. It generates the Karnaugh Map for educational purpose and the actual truth table from the obtained expressions even when multiple solutions for each function are found. This implementation supports PLC programming, so results can be presented in many forms including Structured Text (ST) and Ladder Diagram (LD) along conventional Boolean expression.
Signs is a development environment for hardware designs in VHDL and other hardware description languages. It provides synthesis and simulation tools which are fully integrated in an Eclipse plugin including graphical netlist and waveform viewers.
A clearing house for various pieces of open source software which use the GenCAM data format for input or output of electronic interconnect (PWB, PCB, PWA, PCA) information.
Java source to C source translator, which allows to write MCU programs in Java. Now AVR are supported, others can be added. Convenient Java methods instead of manual register handling.
HDLObf is intended to be a HDL Obfuscator and identifier name change utility. Primarily designed for Verilog/SystemVerilog support will be added for VHDL/SystemC in future.
Electronics Design Software
CircuitSmith is to be a comprehensive electronic design package being developed in Java which will include schematic capture, printed circuit board layout and any other features which I (and hopefully others) can be bothered to program.
This program provides for easy modification and viewing of SPICE circuit files. It will also read SPICE3 RAW format (as well as GnuCap) and create graphs of results through an interactive GUI. It supports waveform math, copying to clipboard, and saving.
NEW OPTIMIZATION TECHNOLOGY & PLANNING EXPERIMENT. Technology is designed for multidimensional optimization practical problems with continuous object functions. Technology higher efficiency than traditional optimization methods.
PPPP is a computer program used for partitioning parameterized orthogonal polygons into parameterized rectangles. With this program, it is possible to build rectangular corner stitching data structure for parameterized VLSI layouts.
ElectroMimic is an electronic circuit simulator in Java™. The simulator is focused on the piecewise-linear models normally used by undergraduate students, but can also be linked with external simulation software for more realistic results.
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.
The PARSEC CEE is the primary achievement of several years of effort at NASA's Marshall Space Flight Center. The CEE was developed to allow engineers in the Advanced Concepts Department to rapidly prototype launch vehicle and spacecraft concepts.
A tool to simulate, draw and plot electrical power trees
Simulate the voltage and current up to the steady state Show components working out of specification Draw a nice power tree diagram showing the currents/powers balance Plot node transient voltage and gate current waveforms Change component parameters interactively to improve the design