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  1. Proceedings of the 12th International Workshop on Java Technologies for Real-time and Embedded Systems (JTRES '14)
  2. The Cardiac Pacemaker: SystemJ versus Safety Critical Java
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A Safety-Critical Java Technology Compatibility Kit
On the Locality of Java 8 Streams in Real-Time Big Data Applications
The Cardiac Pacemaker: SystemJ versus Safety Critical Java
Predictable Broadcasting of Parallel Intents in Real-Time Android
RT-LAGC: Fragmentation-Tolerant Real-Time Memory Management Revisited
Certifiable Java for Embedded Systems
Real-Time control of Humanoid Robots using OpenJDK
Using JetBench to Evaluate the Efficiency of Multiprocessor Support for Parallel Processing
Real-Time Sensing on Android
The final Frontier: Coping With Immutable Data in a JVM for Embedded Real-Time Systems
Android 292: implementing invokedynamic in Android
HVMTP: A Time Predictable and Portable Java Virtual Machine for Hard Real-Time Embedded Systems

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The Cardiac Pacemaker: SystemJ versus Safety Critical Java

Content Provider ACM Digital Library
Author Nadeem, Muhammad Salcic, Zoran Malik, Avinash Park, Heejong
Abstract A cardiac pacemaker example is used to compare and contrast the Synchronous Reactive (SR) programming model of SystemJ with the SCJ programming model. Our pacemaker is implemented in the synchronous subset of the Globally Asynchronous Locally Synchronous (GALS) SystemJ, which extends the Java language with reactivity, concurrency and real-time constructs based on a formal mathematical framework. The use of different programming models results in different design choices and implementations. The SR programming model is driven by a logical clock, which clearly demarcates the state boundaries and is ideal for formal verification of functional and real-time properties. Unlike the preemptive scheduling model prescribed by the SCJ specification, the SystemJ program execution model is atomic and non-preemptive between two logical ticks, and as such it is statically schedulable without the need for a runtime scheduler. To check the effectiveness of the SystemJ approach, we implemented the cardiac pacemaker on three different execution platforms that demonstrate feasibility of guaranteed real-time of the pacemaker execution with a fraction of the used processor's resources.
Starting Page 37
Ending Page 46
Page Count 10
File Format PDF
ISBN 9781450328135
DOI 10.1145/2661020.2661030
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2014-10-13
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Case study Systemj Safety critical java Pacemaker Safety-critical
Content Type Text
Resource Type Article
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