April 2013
Intermediate to advanced
1200 pages
33h 55m
English
Content preview from Software Engineering for Embedded Systems
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Chapter 5
Real-Time Building Blocks
Events and Triggers
Erich Styger
The previous chapter approaches embedded systems from a higher level of abstraction; from the system design architecture and how to apply design patterns for the implementation. This chapter introduces two fundamental concepts and design patterns in real-time systems: (a) the ability to set asynchronous event flags (events) and (b) the ability to have things triggered in a timely fashion (triggers). These two concepts are used both in systems with a real-time operating system (RTOS) and in systems not using an RTOS. The chapter starts with use cases and then develops different ways to implement events and triggers. It presents different implementation details and discusses ...
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