9

Event flag groups

Abstract

Event flags are a very simple method of intertask communication supported by Nucleus SE. They provide a low cost, but flexible, means of passing simple flagging messages between tasks with a little more sophistication than signals. In this chapter, the operation of event flags is outlined, with details of all the relevant application program interfaces. The implementation of event flags in Nucleus SE is also detailed.

Keywords

RTOS; Nucleus; event flags; signals

Event flag groups were introduced in Chapter 3, RTOS Services and Facilities. In Nucleus SE, they are somewhat similar to signals, but with greater flexibility. They provide a low cost, but flexible, means of passing simple messages between tasks.

Using event flags ...

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