Nucleus OSEK

Also Available: Nucleus CAN and Nucleus COM
Other Kernels: Nucleus PLUS and Nucleus µiPLUS

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Striving to save cost and development time in automotive applications, a consortium of German and French vehicle manufacturers defined the OSEK/VDX standard for distributed units in motor vehicles.

The interface defined by the OSEK real-time operating system standard is highly independent of the underlying hardware and makes it possible to be used on all microcontrollers employed by the automotive industry. By defining various conformance classes and different scheduling algorithms, the OSEK operating system is scalable, guaranteeing its efficient use on microcontrollers from 16 to 32-bit.

Nucleus OSEK is Accelerated Technology’s full-featured implementation of the OSEK/VDX operating system that is fully compliant with the latest OSEK specification version 2.2.1 Nucleus OSEK is primarily written in ANSI C, making it extremely portable. Implemented as a C library, only the portions of Nucleus OSEK that are used by the application are linked into the executable image and can be downloaded to the target or placed in ROM.

The Nucleus OSEK Configurator assists you in defining the OSEK objects that are to be included in your application. It translates your specification of those objects into the OSEK Implementation Language (OIL) format and then to a C file which is then compiled with the Nucleus OSEK operating system. It also helps you in scaling down your Nucleus OSEK operating system to use only those services that are exactly needed in an application thus reducing the memory requirements to a minimum.

Nucleus OSEK Features:

• Full compliance with OSEK/VDX standard OS v2.2r1”
• Scalable, reliable, ROMable and cost-sensitive operating system
• Low-level memory resource usage
• Support of BCC1, BCC2, ECC1 and ECC2 conformance classes
• Q ueued and unqueued message supported (CCCA and CCCB conformance class)
• Formal OSEK/VDX certification

Nucleus COM

Nucleus COM is Accelerated Technology's implementation of the OSEK-COM specification. Nucleus COM is the communication extension to Nucleus OSEK kernel and provides for communication between networked nodes as well as additional mechanisms for communication within a single processor. Nucleus COM integrates seamlessly with Nucleus OSEK and operates independent of the physical connection layer.

Re-use of software is a critical mechanism for reducing cost and increasing time-to-market, and a well-defined API and specification can accomplish the task of re-use. The OSEK COM specification was designed to provide standardization for communication in the automotive market. Nucleus COM was developed specifically for embedded applications in the automotive industry, providing a solid extension to the Nucleus OSEK product for processor communication. Strict requirements regulate OSEK development, defining the operating system as scalable, reliable, portable and cost-sensitive. Accelerated Technology's product line development already fits this criterion, and along with our existing source code, no-royalty business model, it just made sense to become an early participant in OSEK technology.

Nucleus COM Features:

• Easily ported to new architectures
• Support all conformance classes
• Integrated with Nucleus OSEK
• Conforms to COM specification version 3.0.2

Mentor Graphics Accelerates “Smart” User Interface Innovation with Nucleus Software Platform for Atmel Microcontrollers View PR Apr 15, 2008

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