Journal article
A Hardware Abstraction Layer in Java
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).
Language: | English |
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Publisher: | ACM, 2 Penn Plaza, Suite 701, New York, NY, USA |
Year: | 2011 |
Pages: | 1-40 |
ISSN: | 15583465 and 15399087 |
Types: | Journal article |
DOI: | 10.1145/2043662.2043666 |