BS ISO 17356-3:2005

Foreword
Introduction
1 Scope
2 Normative references
3 Architecture of the operating system "OS"
   3.1 Processing levels
   3.2 Conformance classes
   3.3 Relationship between OS and OSEKtime OS
4 Task management
   4.1 Task concept
   4.2 Task state model
   4.3 Activating a task
   4.4 Task switching mechanism
   4.5 Task priority
   4.6 Scheduling policy
   4.7 Termination of tasks
5 Application modes
   5.1 General
   5.2 Scope of application modes
   5.3 Start-up performance
   5.4 Support for application modes
6 Interrupt processing
   6.1 General
7 Event mechanism
8 Resource management
   8.1 General
   8.2 Behaviour during access to occupied
       resources
   8.3 Restrictions when using resources
   8.4 Scheduler as a resource
   8.5 General problems with synchronization
       mechanisms
   8.6 Priority Ceiling Protocol
   8.7 Priority Ceiling Protocol with extensions
       for interrupt levels
   8.8 Internal resources
9 Alarms
   9.1 General
   9.2 Counters
   9.3 Alarm management
   9.4 Alarm-callback routines
10 Messages
11 Error handling, tracing and debugging
   11.1 Hook routines
   11.2 Error handling
   11.3 System start-up
   11.4 System shutdown
   11.5 Debugging
12 Description of system services
   12.1 Definition of system objects
   12.2 Conventions
13 Specification of OS services
   13.1 Basics
   13.2 Common data types
   13.3 Task management
   13.4 Interrupt handling
   13.5 Resource management
   13.6 Event control
   13.7 Alarms
   13.8 OS execution control
   13.9 Hook routines
14 Implementation- and application-specific
   topics
   14.1 General
   14.2 Implementation hints
   14.3 Application design hints
   14.4 Implementation-specific tools

Describes the concept of a real-time operating system, capable of multitasking, which can be used for motor vehicles. Also specifies the operating system Application Program Interface (API) and also it is not a product description which relates to a specific implementation.

OSEK/VDX is a joint project of the automotive industry. It aims at an industry standard for an open-ended architecture for distributed control units in vehicles.

This part of ISO17356 describes the concept of a real-time operating system, capable of multitasking, which can be used for motor vehicles. It is not a product description which relates to a specific implementation. It also specifies the operating system Application Program Interface (API).

General conventions, explanations of terms and abbreviations have been compiled in ISO17356-1. ISO17356-6 describes implementation and system generation aspects.

The specification of the OS represents a uniform environment which supports efficient utilization of resources for automotive control unit application software. The OS is a single processor operating system meant for distributed embedded control units.