A Hardware Abstraction Layer in Java

作者：Schoeberl Martin^*; Korsholm Stephan; Kalibera Tomas; Ravn Anders P

来源：ACM Transactions on Embedded Computing Systems, 2011, 10(4): 1-40.

DOI：10.1145/2043662.2043666

• Languages
• Design
• Device driver
• embedded system
• Java
• Java virtual machine

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).

• 出版日期2011-11