Understanding events in AUTOSAR
An event can be looked at as an identifiable occurrence or state change in a system that may require a corresponding action or reaction. Events in AUTOSAR are specific occurrences or conditions that trigger certain actions or reactions within the system. They act as signals, informing SWCs that a particular condition has been met, and prompting them to execute specific functionalities.
Events not only facilitate synchronization and communication among SWCs but also significantly influence the system’s overall performance and functionality. This section will explore the interdependent relationship between ports, interfaces, and events, highlighting their combined impact on the AUTOSAR ecosystem.
Various sources can generate events, such as external inputs, timers, or even other SWCs. They are typically handled by dedicated event handlers or interrupt service routines. Figure 5.11 illustrates the sequence in which RTE events can be generated...