A Hardware Abstraction Layer in Java

Martin Schoeberl, Stephan Korsholm, Tomas Kalibera, Anders Peter Ravn

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

20 Citationer (Scopus)

Abstrakt

Embedded systems use specialized hardware devices to interact with their environment, and since they have to be dependable, it is attractive to use a modern, type-safe programming language like Java to develop programs for them. Standard Java, as a platform-independent language, delegates access to devices, direct memory access, and interrupt handling to some underlying operating system or kernel, but in the embedded systems domain resources are scarce and a Java Virtual Machine (JVM) without an underlying middleware is an attractive architecture. The contribution of this article is a proposal for Java packages with hardware objects and interrupt handlers that interface to such a JVM. We provide implementations of the proposal directly in hardware, as extensions of standard interpreters, and finally with an operating system middleware. The latter solution is mainly seen as a migration path allowing Java programs to coexist with legacy system components. An important aspect of the proposal is that it is compatible with the Real-Time Specification for Java (RTSJ).
OriginalsprogEngelsk
TidsskriftACM Transactions on Embedded Computing Systems
Vol/bind10
Udgave nummer4
Antal sider42
ISSN1539-9087
DOI
StatusUdgivet - nov. 2011

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