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A Flexible Object-Oriented Software Architecture 123 Moreover, the transition from structured (C) to object-oriented (C++) software development on the specific target platform has proven feasible in terms of both code size and run-time performance, although definite comparisons to the previous, C-based implementation will only be possible once the modeled tracker application’s functional scope has reached that of the previous implementation. Discussions have furthermore indicated significant enhancements in terms of documentation and comprehensibility achieved through modeling the software in UML, suggesting that secondary benefits, such as improved maintainability and adaptability of the tracker application by customers, have in fact been achieved as well. Of course, the precise degree to which a UML-based middleware framework architecture and a product-line-based application development approach help further maintainability and extensibility will only become evident once the architecture is being employed in practice – and so will the overall quality and flexibility of the design in comparison to the previous, conventional approach. NOTE 1 Due to the limited scope of this chapter, the included diagrams offer only a superficial glance at selected aspects of the model. A much more detailed discussion of the project is provided in German in the author’s diploma thesis [4]. REFERENCES 1. 2. 3. 4. 5. 6. 7. 8. T. Jones and S. Salzman. “Opening Platforms to Hardware/Software Co-Development.” Communications System Design Magazine, December 2001. M. Götze and W. Kattanek. “Experiences with the UML in the Design of Automotive ECUs.” In Design, Automation and Test in Europe (DATE) Conference 2001, volume Designers’ Forum, 2001. W. Kattanek, A. Schreiber, and M. Götze. “A Flexible and Cost-Effective Open System Platform for Smart Wireless Communication Devices.” In International Symposium on Consumer Electronics (ISCE) 2002, 2002. M. Götze. Entwurf einer Softwarearchitektur für Smart Wireless Communication Devices und darauf basierend Realisierung einer prototypischen Applikation. Diploma thesis, Ilmenau University of Technology, Thuringia, Germany, 2003. S. Demeyer, T. D. Meijler, O. Nierstrasz, and P. Steyaert. “Design Guidelines for Tailorable Frameworks.” Communications of the ACM, Vol. 40, No. 10, pp. 60–64, October 1997. R. C. Martin. [various articles]. C++ Report, January-December 1996. . E. Gamma, R. Helm, R. Johnson, and J. Vlissedes. Design Patterns: Elements of Reusable Object-Oriented Software. Addison-Wesley, 1994. W. Pree. Design Patterns for Object-Oriented Software Development. Addison-Wesley, 1995.
124 Chapter 9 9. 10. M. Fontoura, W. Pree, and B. Rumpe. The UML Profile for Framework Architectures. Addison-Wesley, 2002. M. Clauß. “Generic modeling using UML extensions for variability.” In 16th Annual ACM Conference on Object-Oriented Programming Systems, Languages, and Applications (OOPSLA), volume Workshop on Domain Specific Visual Languages, 2001.
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EMBEDDED SOFTWARE FOR SoC
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Embedded Software for SoC Edited by
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DEDICATION This book is dedicated t
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TABLE OF CONTENTS Dedication Conten
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Table of Conents Chapter 16 EMBEDDE
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Table of Conents Chapter 33 ADAPTIV
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PREFACE The evolution of electronic
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INTRODUCTION Embedded software is b
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Introduction xvii software consists
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Introduction xix Energy-aware techn
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PART I: EMBEDDED OPERATING SYSTEMS
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Chapter 1 APPLICATION MAPPING TO A
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Application Mapping to a Hardware P
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Chapter 2 FORMAL METHODS FOR INTEGR
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Formal Methods for Integration of A
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Chapter 3 LIGHTWEIGHT IMPLEMENTATIO
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Lightweight Implementation of the P
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Chapter 4 DETECTING SOFT ERRORS BY
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Detecting Soft Errors by a Purely S
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PART II: OPERATING SYSTEM ABSTRACTI
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Chapter 5 RTOS MODELING FOR SYSTEM
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RTOS Modeling for System Level Desi
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Chapter 6 MODELING AND INTEGRATION
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Modeling and Integration of Periphe
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Page 172 and 173: Chapter 12 INTERACTIVE RAY TRACING
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Porting a Network Cryptographic Ser
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Porting a Network Cryptographic Ser
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PART IV: EMBEDDED OPERATING SYSTEMS
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Chapter 14 INTRODUCTION TO HARDWARE
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Introduction to Hardware Abstractio
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Chapter 15 HARDWARE/SOFTWARE PARTIT
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Hardware and Software Partitioning
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Chapter 16 EMBEDDED SW IN DIGITAL A
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Embedded SW in Digital AM-FM Chipse
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Embedded SW in Digital AM-FM Chipse
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PART V: SOFTWARE OPTIMISATION FOR E
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Chapter 17 CONTROL FLOW DRIVEN SPLI
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Control Flow Driven Splitting of Lo
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Chapter 18 DATA SPACE ORIENTED SCHE
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Data Space Oriented Scheduling 233
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Chapter 19 COMPILER-DIRECTED ILP EX
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Compiler-Directed ILP Extraction 24
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Chapter 20 STATE SPACE COMPRESSION
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State Space Compression in History
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Chapter 21 SIMULATION TRACE VERIFIC
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Simulation Trace Verification for Q
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PART VI: ENERGY AWARE SOFTWARE TECH
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Chapter 22 EFFICIENT POWER/PERFORMA
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Efficient Power/Performance Analysi
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Chapter 23 DYNAMIC PARALLELIZATION
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Dynamic Parallelization of Array 30
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Chapter 24 SDRAM-ENERGY-AWARE MEMOR
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SDRAM-Energy-Aware Memory Allocatio
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PART VII: SAFE AUTOMOTIVE SOFTWARE
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Chapter 25 SAFE AUTOMOTIVE SOFTWARE
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Safe Automotive Software Developmen
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PART VIII: EMBEDDED SYSTEM ARCHITEC
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Chapter 26 EXPLORING HIGH BANDWIDTH
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Exploring High Bandwidth Pipelined
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Chapter 27 ENHANCING SPEEDUP IN NET
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Enhancing Speedup in Network Proces
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Chapter 28 ON-CHIP STOCHASTIC COMMU
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On-Chip Stochastic Communication 37
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Chapter 29 HARDWARE/SOFTWARE TECHNI
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HW/SW are Techniques for Improving
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Chapter 30 RAPID CONFIGURATION & IN
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Rapid Configuration & Instruction S
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PART IX: TRANSFORMATIONS FOR REAL-T
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Chapter 31 GENERALIZED DATA TRANSFO
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Generalized Data Transformations 42
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Chapter 32 SOFTWARE STREAMING VIA B
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Software Streaming Via Block Stream
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Chapter 33 ADAPTIVE CHECKPOINTING W
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Adaptive Checkpointing with Dynamic
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PART X: LO POWER SOFTWARE
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Chapter 34 SOFTWARE ARCHITECTURAL T
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Software Architectural Transformati
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Chapter 35 DYNAMIC FUNCTIONAL UNIT
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Dynamic Functional Unit Assignment
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Chapter 36 ENERGY-AWARE PARAMETER P
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Energy-Aware Parameter Passing 501
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Chapter 37 LOW ENERGY ASSOCIATIVE D
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Low Energy Associative Data Caches
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INDEX abstract communication access
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Index 529 packet flows parameter pa
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