This software is available on Sourceforge or Github for download under the GNU General Public License (GPL) v2+. I will provide a brief tutorial of Qucs – Quite Universal Circuit Simulator which is an open-source circuit simulator being developed by The Qucs Development Team – a multi-disciplinary group of talented engineers, scientists and mathematicians. ![]() This post will cover the installation and use of Schematic Capture and Circuit Simulation tools. Today I’ll be discussing the Knowm Open-Source EDA Stack that includes Knowm contributed extensions to popular open-source EDA tools to be used for the design, layout, and simulation of memristor devices and neuro-memristive circuits. Having a feature rich software should not be called a Monster as long as it is convenient to use and not a memory hog, IMHO.In a previous post titled Knowm Memristor Modeling and Simulation, I presented the implementation of a Verilog-A version of the Knowm MSS model within industry standard commercial EDA tools. Otherwise Qucs may become monster like Multisim For example, a random number device that fetches data from "" to add real world randomness to the simulation. It is more like having a separate application that communicates with Qucs through TCP/IP. With such an interface, connection to a real hardware should also be possible if a simulator is missing.Īnd moreover, other types of devices can be simulated as well without people adding components to the main software. That possibility can still be used as a teaching tool though I do not see any problem in production. Ability to simulate MCUs using an external interface will isolate Qucs being the main simulator. In the simplest term, we can make a generic device that connects to an external instance of a simulator i.e. ![]() There is a digital part in the simulator as well. I would still say that it is aligned with the "Universal" word in Qucs. I agree, it is just a proposal and pursuing it depends on the amount of work and interest involved. MCU s simulation feature can give this project a new live. KTechLab was one of the best open-source digital circuit simulators in past. You can use abandoned project KTechLab to implement digital simulator with additional MCU simulation features. Also my thoughts on this subject are here: #193 (comment) For example one of the best proprietary circuit simulators MicroCAP cannot simulate MCUs. Otherwise Qucs may become monster like Multisim. I think we should follow this direction in Qucs development. Qucs has excellent frequency domain analog solver that is especially suitable for HF-circuits. These developments kits are thousand times more useful than simulators. Now development kits such as MSP430-launchpad and STM32-discovery are very cheap. It was faster to use development boards (like MSP430 launchpad, STM32-discovery) for devices prototyping. Sometimes simulator shows nonexistent bugs. And I tried to use MCU simulators in production. I was electronic devices developer before I became university lecturer. It will be useful only for beginners, but useless for production. I think Qucs should not introduce this feature. I have mixed feelings about MCU simulators. Support for simulating MCUs AVR, ARM etc. See my ideas on components library extension and library editor. As alternative we can implement a separated simple postprocessor like Ngnutmeg. But it requires to move/ or duplicate a part of postprocessor form Qucsator to QucsGUI. We can also implement PlotVs() function on display page. If simlation in time-domain is slow, it means that something went wrong.įFT in cartesian like diagram without using the equation Simulation in frequency domain is always sufficient fast, and it don't need to be dynamically shown. Support for graph that updates as the simulation progresses. Sometimes non-realistic values are needed for debug. For example an opamp with 0 ohm output impedance. ![]() Non-realistic value that might lead to convergence errors should not be allowed or the user should be warned against.
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