QP™ active object frameworks
for embedded systems

QP™ is a family of lightweight, open source software frameworks for building responsive and modular real-time embedded applications as systems of cooperating, event-driven active objects (concurrent state machines). QP™ frameworks support both manual and automatic coding of UML statecharts in readable, production-quality C or C++.

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latest version 5.5.0
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QM™ (QP Modeler)
graphical modeling tool

QM™ is a freeware graphical modeling tool for Model Driven Software Development (MDSD) based on state machines (UML statecharts) and the QP™ active object frameworks. QM™ generates compact, MISRA-compliant C or C++ code. Available for Windows, Linux, and Mac OS X.
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latest version 3.3.0
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and markets

The QP™ active object frameworks power millions of embedded processors in consumer, medical, industrial, wireless, networking, research, defense, robotics, automotive, and other markets worldwide.
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In the simplest configuration, the QP™ frameworks run on bare-metal target completely replacing an RTOS. QP™ Development Kits (QDKs) are available for most popular 32-, 16-, and 8-bit embedded processors and microcontrollers.
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The QP/C and QP/C++ frameworks can also work with a traditional OS/RTOS to take advantage of device drivers, communication stacks, GUI, and other existing code.
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and community

The QP™ frameworks and the QM™ modeling tool have a vibrant community at SourceForge.net. We are also an active contributor to the Arduino community, we teach embedded programming course on YouTube, and we blog at EmbeddedGurus.com.

About quantum®LeaPs

Quantum Leaps, LLC provides event-driven, RTOS-like, active object (actor) frameworks and a graphical, state machine modeling tool for real-time embedded systems, such as single-chip microcontrollers.

Our open-source QP frameworks and the freeware QM modeling tool bring quantum leaps of innovation to embedded programming.

Welcome to the 21st century!

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User Stories

Jeff Karau

Without using QP, I don't believe we could have delivered on our given schedule dates with the same level of quality."

Jeff Karau, Sr. Software Engineer, General Dynamics C4 Systems

Henrik Bohre

...After trying out a couple of CASE tools we came to the conclusion that expensive round-trip-engineering UML tools were cumbersome and did not fit our way of working. However, the innovative QP way to map UML state machines to C/C++ code was exactly what we were looking for..."

Henrik Bohre, Embedded Systems Consultant, GotCom AB, Göteborg, Sweden


I'm speaking from first-hand experience when I say this is really good stuff. I just hope others will recognize that and we can get past the old main+ISR vs. RTOS dilemma for a large variety of applications."

Michael Barr, President Netrino and former editor-in-chief of the ESP magazine

Haitham Hindi

Practical Statecharts in C/C++ has been an indispensible reference for my embedded systems work. The clear and succinct conceptual and software framework, along with the immediately usable code enabled us to get a working prototype of our control system in a few weeks."

Dr. Haitham Hindi, Palo Alto Research Center (PARC)

Paul Montgomery

...QP has been adopted accross the company and is used in all our products on a variety of OS platforms..."

Dr. Paul Montgomery, Director of Engineering, Novariant, Fremont CA

Stratos Product Development

We're glad to keep giving Quantum Leaps our business. QP has been really valuable for us—we've had a great experience working with Quantum Leaps frameworks and tools. It's been a big help in terms of delivering high-quality software within our clients' budgets, so thank you!"

Jason Machacek, Software Engineer, Stratos Product Development LLC, Seattle WA

EIM Controls, Inc.

I used the traditional RTOS approach for about 10 years. With the real-time debug log of QSPY and the ability to see what is going on in the logic flow, the code is very easy to debug and modify. It makes the code very modular and deterministic... You end up talking about the codes logic flow, and not the semantics of the software. QP is a great product."

Paul Walker, Software Engineer, EIM Controls, Inc.

Apple Computer, Inc.

I recently rewrote a major piece of code to utilise the QP framework and it has worked wonders. My previous code used a more traditional state machine and had quickly evolved into spaghetti code. The hierarchical state machine approach made the new code smaller, more robust, and much easier to maintain and extend."

Bob Bradley, Apple Computer, Inc., from Amazon.com review

Honeywell International

Quantum Leaps software has revolutionized not just the way we write our software, but the way we approach our design. It is intuitive, easy to implement and comes in an incredibly small package. If you're in the 8-bit world, you need this software!"

Chad Koster, Software Engineer, Honeywell

Rich Wooley

Simply put, designing sofware using the QP framework lets you code the way you think..."

Rich Wooley, Sofware Engineer, Nipro Diabetes Systems, Florida

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