Runtime monitoring of timing constraints in distributed real-time systems
Real-Time Systems - Special issue on responsive computer systems
MicroC/OS-II: the real-time kernel
MicroC/OS-II: the real-time kernel
Component-based design approach for multicore SoCs
Proceedings of the 39th annual Design Automation Conference
Efficient Run-Time Monitoring of Timing Constraints
RTAS '97 Proceedings of the 3rd IEEE Real-Time Technology and Applications Symposium (RTAS '97)
ReCoNet: Modeling and Implementation of Fault Tolerant Distributed Reconfigurable Hardware
SBCCI '03 Proceedings of the 16th symposium on Integrated circuits and systems design
A Contract-Based Component Model for Embedded Systems
QSIC '04 Proceedings of the Quality Software, Fourth International Conference
Real-Time Component-Based Systems
RTAS '05 Proceedings of the 11th IEEE Real Time on Embedded Technology and Applications Symposium
An Interface Algebra for Real-Time Components
RTAS '06 Proceedings of the 12th IEEE Real-Time and Embedded Technology and Applications Symposium
Real-time interfaces for composing real-time systems
EMSOFT '06 Proceedings of the 6th ACM & IEEE International conference on Embedded software
Real-Time Property Verification in Organic Computing Systems
ISOLA '06 Proceedings of the Second International Symposium on Leveraging Applications of Formal Methods, Verification and Validation
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Integration of system components is a crucial challenge in the design of embedded real-time systems, as complex non-functional interdependencies may exist. We propose a software update service with self-protection capabilities against unverified system updates - thus solving the integration problem in-system. As modern embedded systems may evolve through software updates, component replacement or even self-optimization, possible system configurations are hard to predict. Thus the designer of system updates does not know the exact system configuration. This turns the proof of system feasibility into a critical challenge. This paper presents the architecture of a framework and associated protocols enabling updates in embedded systems while ensuring safe operation w.r.t. non-functional properties. The proposed process employs contract based principles at the interfaces towards applications to perform an in-system verification. Practical feasibility of our approach is demonstrated by an implementation of the update process, which is analzed w.r.t. the memory consumption overhead and execution time.