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Modern embedded systems require high performance, low cost and low power consumption. Such systems typically consist of a heterogeneous collection of processors, specialized memory subsystems, and partially programmable or fixed-function components. This heterogeneity, coupled with issues such as hardware/software partitioning, mapping, scheduling, etc., leads to a large number of design possibilities, making performance debugging and validation of such systems a difficult problem.
Embedded systems are used to control safety critical applications such as flight control, automotive electronics and healthcare monitoring. Clearly, developing reliable software/systems for such applications is of utmost importance. This book describes a host of debugging and verification methods which can help to achieve this goal.
- Covers the major abstraction levels of embedded systems design, starting from software analysis and micro-architectural modeling, to modeling of resource sharing and communication at the system level
- Integrates formal techniques of validation for hardware/software with debugging and validation of embedded system design flows
- Includes practical case studies to answer the questions: does a design meet its requirements, if not, then which parts of the system are responsible for the violation, and once they are identified, then how should the design be suitably modified?
Designers of Microprocessors and Systems-on-Chip (SOC), concerned with debugging and validation, at companies globally such as Microsoft, Honeywell, Intel, and many more
2 Model Validation
2.1 Platform vs System Behavior
2.2 Criteria for Design Model
2.3 Informal Requirements: A Case Study
2.3.1 The Requirements Document
2.3.2 Simplication of the Informal Requirements
2.4 Common Modeling Notations
2.4.1 Finite State Machines (FSM)
2.4.2 Communicating FSMs
2.4.3 Message Sequence Chart based Models
2.5 Remarks about Modeling Notations
2.6 Model Simulations
2.6.1 FSM simulations
2.6.2 Simulating MSC-based System Models
2.7 Model-based Testing
2.8 Model Checking
2.8.1 Property Specifcation
2.8.2 Checking procedure
2.9 The SPIN Validation Tool
2.10 The SMV Validation Tool
2.11 Case Study: Air Traffic Controller
3 Communication Validation
3.1 Common Incompatibilities
3.1.1 Sending/receiving signals in di erent order
3.1.2 Handling a diffrent signal alphabet
3.1.3 Mismatch in data format
3.1.4 Mismatch in data rates
3.2 Converter Synthesis
3.2.1 Representing Native Protocols and Converters
3.2.2 Basic ideas for Converter synthesis
3.2.3 Various strategies for protocol conversion
3.2.4 Avoiding no-progress cycles
3.2.5 Speculative transmission to avoid deadlocks
3.3 Changing a working design
4 Performance Validation
4.1 The Conventional Abstraction of Time
4.2 Predicting Execution Time of a Program
4.2.1 WCET Calculation
4.2.2 Modeling of Micro-architecture
4.3 Interference within a Processing Element
4.3.1 Interrupts from Environment
4.3.2 Contention and Preemption
4.3.3 Sharing a Processor Cache
4.4 System level communication analysis
4.5 Designing Systems with Predictable Timing
4.5.1 Scratchpad Memories
4.5.2 Time-triggered Communication
4.6 Emerging applications
5 Functionality Validation
5.1 Dynamic or Trace-based Checking
5.1.1 Dynamic Slicing
5.1.2 Fault Localization
5.1.3 Directed Testing Methods
5.2 Formal Verifcation
5.2.1 Predicate Abstraction
5.2.2 Software Checking via Predicate Abstraction
5.2.3 Combining Formal Verifcation with Testing
- No. of pages:
- © Morgan Kaufmann 2009
- 29th April 2009
- Morgan Kaufmann
- eBook ISBN:
- Hardcover ISBN:
Abhik received his M.S. and Ph.D. in Computer Science from the State University of New York at Stony Brook in 1997 and 2000 respectively. His research has focused on formal verification and analysis methods for system design, with focus on embedded software and systems. In these areas, his research group has been involved in building practical program analysis and software productivity tools which enhance software quality as well as programmer productivity. Two meaningful examples of such endeavor are the JSlice dynamic analysis tool for Java program debugging, and the Chronos static analysis tool for ensuring time-predictable execution of embedded software. His awards include a 2008 IBM Faculty Award. Since 2001, Abhik has been at the School of Computing in the National University of Singapore, where he is currently an Associate Professor.
Associate Professor, National University of Singapore
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