METHOD FOR SECURE ACCESS TO AT LEAST ONE VARIABLE IN A PREEMPTIVELY MULTITASKING-CONTROLLED PROCESSOR SYSTEM

METHOD FOR SECURE ACCESS TO AT LEAST ONE VARIABLE IN A PREEMPTIVELY MULTITASKING-CONTROLLED PROCESSOR SYSTEM

In an access status memory (ZSE1), the accessing task (T1) inputs blocking data (SI) before a current access to at least one variable. In addition, tas k change data (WI) planned by the task scheduler (BST) during the protected current access is inputted into the access status memory (ZSE1) with the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: SPITZ, GERHARD
Format: Patent
Sprache:eng ; fre
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Zusammenfassung:In an access status memory (ZSE1), the accessing task (T1) inputs blocking data (SI) before a current access to at least one variable. In addition, tas k change data (WI) planned by the task scheduler (BST) during the protected current access is inputted into the access status memory (ZSE1) with the aid of said task scheduler (BST). At the end of the current access, a release information (FI) is inputted into the access status memory (ZSE1) and the delayed task change (TWA) is executed by the currently accessing task (T1) once the task change data (WI) has been inputted.