Rubus® JOS

The Operating System Kernel and its ancestor

Rubus JOS is a real-time operating system kernel designed for Conemtech processors. It combines the robustness of a static operating environment with the dynamics of eg. Java programming. The services supported are based on the ANSI/IEEE standard 1003.1 (POSIX). Rubus JOS has emanated from Rubus® OS kernel designed by Arcticus Systems for the automotive industry. In the new Rubus JOS resources are allocated dynamically at run-time, whereas the Rubus OS resources are allocated statically, pre-run-time, for maximum dependability.

By supporting the two RTOS kernels for the Conemtech processor a broad range of real-time systems in different application segments as Telecommunications, Consumer Electronics and Automotive can be addressed.

Rubus JOS - Conemtech Target version

The features of Rubus JOS on Conemtech processors are:

• Supporting several application simultaneous programs, several parallel processes
• Support management of an unlimited number of threads (in respect of available RAM)
• Thread synchronization via signals and semaphores (Mutex)
• Message passing via Message Queues
• Supports the unique event handling mechanism of the Conemtech processors (interrupts and services)
• The services are accessed via a trap, thus enabling the RTOS to be separated from the applications
• Supports on-line scheduling and several scheduling policies, priority, periodic and asynchronous scheduling policies. The thread having the highest priority at a given time is selected for execution
• Supports advanced features for analysing and supervising at run-time
• Integrated in the Developer environment.

To build the complete system software of the Conemtech platforms, the Rubus JOS is merged by a file system, a number of drivers, support for TCP/IP, and peripherals. For programmers wanting to access the operating system directly the Rubus JOS kernel has an API defined in C well documented in the Developer On-line help.

Availability

• The Rubus JOS is included in the software profiles of the Developer version 7 and higher.

Conemtech may make changes to specifications and product descriptions at any time, without notice.
Rubus is a registered trademark of Arcticus Systems.