QP is a family of lightweight software frameworks for building responsive and modular real-time embedded applications as systems of cooperating, event-driven active objects (actors). The QP family consists of QP/C, QP/C++, and QP-nano frameworks, which are all strictly quality controlled, superbly documented, and commercially licensable.
The behavior of active objects is specified in QP by means of hierarchical state machines (UML statecharts). The frameworks support manual coding of UML state machines in C or C++ as well as automatic code generation by means of the free QM modeling tool.
All QP frameworks can run on bare-metal MCUs, completely replacing a traditional RTOS. Ports and ready-to-use examples are provided for all major CPUs, such as ARM Cortex-M, ARM7/9, MSP430, C28x, C55x, RX, AVR32, AVRMega, PIC24/dsPIC, as well as Arduino and mbed. QP/C and QP/C++ can also work with a traditional OS/RTOS, such as: POSIX (Linux, QNX), Windows, VxWorks, ThreadX, uC/OS, and FreeRTOS
- World's smallest active object (actor) frameworks for embedded microcontrollers
- Modern event-driven architecture with publish-subsrcibe and direct event posting
- Thread-safe execution of state machine objects (actors) with zero-copy event passing
- Highly maintainable and traceable mapping of UML hierarchical state machines to C or C++
- Free, QM modeling tool for drawing UML statecharts and automatic code generation based on QP
- Compliant with MISRA-C:2004 (QP/C and QP-nano) and MISRA-C++:2008 (QP/C++)
- Complete toolkit for prototyping QP applications on Windows with realistic GUI-based front panels
- Book "Practical UML Statecharts in C/C" with detailed design study of the QP framework, application notes, articles, user manuals, and blog
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