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QP-bundle 6.9.2 released

New QP-bundle 6.9.2 is now available for download: Released software versions: QP/C 6.9.2: See QP/C revision history for version 6.9.2 QP/C++ 6.9.2: See QP/C++ revision

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key concepts

Software Tracing

Key Concept: Software tracing is a method for obtaining diagnostic information about the embedded software in a live environment without the need to stop the

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key concepts

Model-Based Design

Key Concept: Model-Based Design (MBD) is a software development process in which the primary focus and products are software models rather than directly code. MBD

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key concepts

Finite State Machine (FSM)

Key Concept: The behavior of each Active Object in the QP™ real-time embedded frameworks is specified by means of a hierarchical state machine (UML statechart),

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key concepts

Real-Time Embedded Framework

Key Concept: A Real-Time Embedded Framework (RTEF) is an implementation of the Active Object design pattern specifically designed for real-time embedded systems. RTEF provides the

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key concepts

Active Object (Actor)

Key Concept: Active Objects combine event-driven programming with multithreading. They naturally implement and automatically enforce the best practices of concurrent programming. Best Practices Active Object

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key concepts

Event-Driven Programming

Key Concept: Embedded systems need a program structure that can respond to a multitude of possible event sequences, any of which can arrive at unpredictable

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key concepts

Sequential Programming

Key Concept: A sequential program explicitly waits in-line, for the expected events in various places in the execution path. This explicit waiting for events is

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key concepts

Reactive Systems

Key Concept: The main common characteristic of Real-Time Embedded (RTE) systems is that they constantly interact with the external world. Such systems, termed reactive, do

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QP home page on mobile phone

New Website for 2021

We are excited to announce the launch of our updated website at www.state-machine.com. The new site has a fresh new look and is based on

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QP for Arduino logo

QP and Arduino

The Quantum Leaps’ QP™ real-time embedded frameworks (RTEFs) and the QM™ modeling tool complement the Arduino platform and provide everything you need to program Arduino

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QP port to POSIX

QP™ and POSIX (Linux)

This Application Note describes how to use the QP™/C and QP™/C++ real-time embedded frameworks (RTEFs) version 5.x.x or higher with the POSIX standard-compliant operating system,

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