OSEK/VDX API for Java

ABSTRACT

Modern cars contain a multitude of micro controllers for a wide area of tasks. The diversity of the heterogeneous hardware and software leads to a complicated and expensive integration process.Integrating multiple tasks on fewer micro controllers reduces diversity and costs of production, but poses new problems with the growing complexity of software on a single micro controller. Therefore a more robust software development process and a safe execution environment is needed in the automotive area and other areas with similar constraints. With the KESO system we have implemented a very small and adapted Java execution environment for an OSEK/VDX operating system to address these issues.In this paper we present our approach for a low overhead OSEK/VDX system interface, which is an integral component of the KESO system. We show how access to the system services can be restricted at low cost to ensure the isolation of tasks by the use of type-safety and modern compiler techniques, while maintaining a familiar programming interface for developers that are used to OSEK application development using the C programming language.

REFERENCES

• 1: Danilo Beuche , Abdelaziz Guerrouat , Holger Papajewski , Wolfgang Schröder-Preikschat , Olaf Spinczyk , Ute Spinczyk, The PURE Family of Object-Oriented Operating Systems for Deeply Embedded Systems, Proceedings of the 2nd IEEE International Symposium on Object-Oriented Real-Time Distributed Computing, p.45, May 02-05, 1999
• 2: AJACS: Applying Java to Automotive Control Systems Concluding Paper V2.0, July 2002. http://www.ajacs.org/.
• 3: Danilo Beuche , Lars Büttner , Daniel Mahrenholz , Wolfgang Schröder-Preikschat , Friedrich Schön, JPURE - A Purified Java Execution Environment for Controller Networks, Proceedings of the IFIP WG10.3/WG10.4/WG10.5 International Workshop on Distributed and Parallel Embedded Systems: Architecture and Design of Distributed Embedded Systems, p.65-74, October 18-19, 2000
• 4: Michael Golm , Meik Felser , Christian Wawersich , Jürgen Kleinöder, The JX Operating System, Proceedings of the General Track: 2002 USENIX Annual Technical Conference, p.45-58, June 10-15, 2002
• 5: Tim Lindholm , Frank Yellin, Java Virtual Machine Specification, Addison-Wesley Longman Publishing Co., Inc., Boston, MA, 1999
• 6: OSEK/VDX Group. Operating System Specification 2.2.3. OS-EK/VDX Group, Feb. 2005. http://www.osek-vdx.org/.

INDEX TERMS

Primary Classification:
  C. Computer Systems Organization
  C.3 SPECIAL-PURPOSE AND APPLICATION-BASED SYSTEMS

Additional Classification:
  D. Software
  D.3 PROGRAMMING LANGUAGES
      D.3.2 Language Classifications

          Nouns: Java
  D.4 OPERATING SYSTEMS
      D.4.7 Organization and Design
          Subjects: Real-time systems and embedded systems

General Terms:
Design