Designing Your Model: Model-Code Correspondence : Activity Charts : Decomposition of Non-basic Activities : Communication and Synchronization Services between Activities : Global Data

Global Data

As always with real time applications, when using global data, caution should be taken regarding the validity of the data when running in a preemptive environment with multiple tasks and ISRs. The protection mechanism supported is the OSEK RESOURCE mechanism, which is similar to a binary semaphore.