Gwave is a waveform viewer for the output of analog electronic circuit simulators such as spice. It displays the data as 2-D plots, and allows for interactive scrolling, zooming, and measuring of the waveforms.
Ycad is a library of CAD functions in Java. Currently only DXF is supported for reading, viewing and writing. The DXF drawing may be rendered to a Graphics object for printing or imaging.
Open Design Space Exploration Framework
OpenDSE is a design space exploration framework for embedded systems, written in Java. It follows the Y-chart approach where an application consisting of data-dependent tasks is mapped to an architecture consisting of resources.
Project to Open Hardware Designs, Schematics, PCB files, JTags and BSPs of 32bit MMU enabled RiSC-SOM(tm) for non-profit org(s).
vrq is verilog parser that supports plugin tools to process verilog. Current plugins include tools to perform x-propagation and to auto build hiearchy.
Turns-n-Layers is a command line transformer and induction coil design aid that calculates the amount of wire needed, both length (feet) and weight (lbs). Also, the finished dimensions of the coil and the resistance are also returned.
RxCalc is a calculator for the analysis of multi-stage receiver.
RxCalc is a calculator for the analysis of multi-stage receiver. The software can calculate cascaded and system parameters: gain, noise, sensitivity, input and output P1dB and IP3, noise floor, spur-free dynamic range, MDS, SNR, and others. Sources code: https://github.com/arhiv6/rxcalc Binary package: http://sourceforge.net/projects/rxcalc/
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
A circuit simulator with graphical user interface (GUI)
Qucs is a circuit simulator with graphical user interface. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, Transient, Noise and Harmonic Balance analysis. Pure digital simulations are also supported.
A utility for processing command line arguments
KTechlab is an IDE for microcontrollers and electronics.
Tools for FPGA development and IP cores. This project provides tools, cores and documentation to develope FPGA applications. The project focuses on VHDL.
SPICE netlist visualizer
NetlistViewer is a tool capable of loading netlists in text format (currently only SPICE netlists) and convert them in a schematic (i..e graphical) form.
Tools and libraries for use with systemc and verilog
Tool suite and libraries for developing system-c models. Tools for managing RTL projects.
xerlox ( say: zer'locks ) is both a tool and a toolbox that brings Perl and Verilog together to create an efficient Verilog HDL design environment. xerlox promotes up-front documentation, efficient coding, and design reuse.
gputils is a collection of tools for Microchip PIC microcontrollers. Its goal is to be fully compatible with Microchip's tools, MPASM, MPLINK, and MPLIB.
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
IMPORTANT: The flosslogic project has merged with the sigrok project. Development continues in the sigrok wiki, mailing lists, IRC channel, and git repository.
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.
zamiaCAD is a modular and extensible platform for HW design, analysis, and research. It translates a HW description (VHDL or Verilog) into a language independent IG structure. Applications like a simulator and an eclipse GUI build on top of the IG.
OPEN LICENSED ANALOG AUDIO POWER AMPLIFIER (MATRIX 1.4 & F23 FUSION)
MATRIX 1.4 II T13 is the next version of the MATRIX 1.4, an open licensed analog-audio-power-amplifier technology platform that purposed mainly to implement BJT (Bipolar Junction Transistor).
Timing-gen is a Linux tool to generate high quality Postscript timing diagrams from text input files.
MATRIX 1.4 Free & Open Audio Power Amplifier Technology Platform
Development Project of Free & Open Audio Power Amplifier Core Circuit System - based MATRIX 1.4 Platform. MATRIX 1.4 discovered by HERU HIMAWAN TEJO LAKSONO & MUJIONO IRKHAS from Indonesia. MATRIX 1.4 is free & open technology developed & released under the therms of GNU General Public License V. 3 (GPL3).
Python Gerber to G-code converter
pyGerber2Gcode is a Pyhon based simple Gerber to G-code converter.
GHDL - a VHDL simulator
GHDL is the leading open source VHDL simulator. *** Now on github.com/tgingold/ghdl *** We have binary distributions for Debian Linux, Mac OSX and Windows. On other systems, getting GHDL from here means downloading the current source package and building GHDL from source. Alternatively you can get the latest source version (warning : occasionally unstable!) by pulling a snapshot from the git repository.