DownloadQP real-time embedded frameworks (RTEFs) provide lightweight, modern event-driven architecture based on active objects (actors) and hierarchical state machines. The matching QM model-based design tool and other host-based tools complement the QP frameworks by supporting graphical modeling, code generation, software tracing and unit testing for event-driven embedded software. Visit https://www.state-machine.com for more information.
The QP RTEFs can run on bare-metal single-chip microcontrollers, completely replacing a traditional RTOS. The frameworks contain a selection of built-in real-time kernels (RTOS kernels), such as the cooperative QV kernel, the preemptive non-blocking QK kernel, and the unique preemptive, dual-mode (blocking/non-blocking) QXK kernel. Native QP ports and ready-to-use examples are provided for ARM Cortex-M (M0/M0+/M3/M4F/M7) as well as other CPUs.
The QP RTEFs can also work with many traditional RTOSes and desktop OSes, such as Linux and Windows.
Features
- Lightweight Real-Time Embedded Frameworks (RTEFs) based on event-driven active objects (actors), which are safer and more extensible than the traditional "naked" RTOS threads
- Simple-to-use coding techniques for hierarchical state machines (UML statecharts), with which to implement the behavior of active objects
- Free, QM modeling tool for drawing UML statecharts and automatic code generation based on QP frameworks
- Efficient and thread-safe event-driven mechanisms for active objects to communicate, such as direct event passing and publish-subscribe
- Selection of built-in RTOS kernels to run the QP applications, such as the cooperative QV kernel, the preemptive non-blocking QK kernel, and the preemptive blocking QXK kernel
- Software tracing and unit testing specifically designed for event-driven software
- Compliant with MISRA-C:2004 (QP/C and QP-nano) and MISRA-C++:2008 (QP/C++)
- Book "Practical UML Statecharts in C/C" with detailed design study of the QP framework, application notes, articles, user manuals, and blog
Project Samples
License
Other License, GNU General Public License version 3.0 (GPLv3)User Reviews
Additional Project Details
Intended Audience
Aerospace, Healthcare Industry, Telecommunications Industry, Developers, Engineering, AutomotiveProgramming Language
C++, CRelated Categories
C++ Frameworks, C++ Operating System Kernels, C++ Embedded Systems Software, C Frameworks, C Operating System Kernels, C Embedded Systems SoftwareRegistered
Find a Partner
QP/QM Training
Quantum Leaps offers an on-site training "Modern Embedded Systems Programming with QP™ Frameworks and QM™ Modeling Tool". This 2- to 3-day training uses hands-on exercises combined with instruction to illustrate the concepts underlying the QP active object frameworks and how they are applied in embedded systems programming requiring hard real-time performance. Upon completion of the two-day training, participants have good understanding of event-driven systems, skills in designing and implementing UML state machines manually in C or C++ and graphically with the QM modeling tool, and the ability to build their own QP applications. Additionally, upon completion of the three-day training, participants gain understanding of the real-time kernel options built-into the QP frameworks, learn how to reuse behavior with sub-machines, find out how to apply software tracing to debug and optimize their event-driven code and how to apply unit testing to active objects and state machines.
Add-ons & Plugins
QM visual model based design tool
QTools Collection
QP/Spy Software Tracing