QP 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
License
Other License, GNU General Public License version 3.0 (GPLv3)User Reviews
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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
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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.