Quantum Leaps' QP™ real-time embedded frameworks (RTEFs) provide lightweight, modern event-driven architecture based on active objects (actors) and hierarchical state machines. Our QM™ model-based design tool and other host-based tools support graphical modeling, code generation, software tracing and unit testing for event-driven embedded software.
For over 15 years our modern embedded software and development tools have been delivering competitive advantage to hundreds of companies around the world in a wide variety of markets.
The following downloads contain everything you need to get started: the QP™ frameworks, the QM™ modeling tool and the QTools™ collection bundled together in a single, streamlined "QP-bundle". Give it a try. It's easier than you think!
Current version: 6.9.1a (Nov 1, 2020)
Older QP-bundle downloads are available in the
The latest code, including the most recent enhancements and bug fixes, is available on
Additionally, on 
you can also find: , and
The QP™ RTEFs provide modern, reactive software architecture that combines the event-driven model of concurrency known as active objects (actors) with hierarchical state machines (UML statecharts). This architecture inherently supports and automatically enforces the best practices of concurrent programming, which results in applications that are safer, more responsive and easier to manage than the raw threads and the myriad of blocking mechanisms of a traditional Real-Time Operating System (RTOS). The architecture also provides sufficiently high level of abstraction and the right abstractions to effectively apply graphical modeling and code generation to deeply embedded systems such as microcontrollers and small microprocessors.
The QP™ RTEFs are highly portable and can be used either standalone (with the built-in real-time kernels) or on top of a traditional RTOS or OS. In the past, the built-in kernels of QP™ have been ported to many embedded processors. In recent years, however, we focused on the incredibly popular ARM Cortex-M CPU family, whereas we support Cortex-M0/M0+, Cortex-M3, Cortex-M4 with FPU and Cortex-M7 with FPU. The built-in kernels also support PIC32, as well as PIC24 and MSP430 low-power MCUs.
When used on top of a thid-party RTOS or OS (e.g., embedded Linux and Windows embedded), the QP™ RTEFs run on all hardware supported by the chosen RTOS or OS.
Please refer to the "Ports" sections in the QP/C Reference Manual and QP/C++ Reference Manual for the specific lists of currently supported CPUs and development toolchains as well as 3-rd party RTOSes and OSes.
The QP™ RTEFs are surronded by a cafefully designed comprehensive suite of host-based tools, which add support for model-based design, automatic code generation, software tracing, monitoring, dual-targeting, prototyping, and unit testing.
QM™Free Model-Based Design (MBD) and automatic code generation tool for real-time embedded software in C or C++ based on hierarchical state machines and the QP™ Real-Time Embedded Frameworks (RTEFs).
QTools™ CollectionCollection of various open source tools for QP, including:
QP/Spy™ Software Tracing for QP/C or QP/C++ applications
QUTest™ Unit Testing Harness for QP applications
QView™ Visualization & Monitoring for QP applications
QWin™ GUI for prototyping embedded devices on Windows
The QM™ Model-Based Design tool and the QTools™ collection run on all three host operating systems ( Windows, Linux and MacOS). However, we recommend Windows, because we use it as the main platform for development and testing of our host-based tools.
The QP-bundle release 6.9.1a now available.
New video: Modern Embedded Software goes Beyond the RTOS - Part 1
New video: Event-Driven Programming Part-2
Quantum Leaps' Miro Samek will present at the Embedded Online Conference .
New video: Getting Started with QP/QM/QTools
The "Modern Embedded Systems Programming" video course now explains: Object-Oriented Programming
QP/C++ library for Arduino SAM-based boards (e.g., Arduino DUE, Arduino Zero) released
New video: QM Video Tutorial
New video: Debugging with QUTest
Please update your records to our new postal address
QTools and QP/C/C++ support debugging of unit test fixtures in QUTest.
New video: Modern Embedded Systems Programming Lesson 28: RTOS part-7
QP™/C
