Automotive Developers Communicate with Nucleus NET TCP/IP Stack

11/11/2003 - Accelerated Technology®, the Embedded Systems Division of Mentor Graphics Corporation, announced the availability of the Nucleus® NET embedded TCP/IP protocol stack for networking developers using the OSEK standard, an industry operating system specification for automotive systems. This release of the Nucleus NET protocol stack allows OSEK users to develop an automotive electronics application that can communicate outside the vehicle.

An OSEK device, such as the anti-lock braking system of an automobile, might need to communicate with the automobile's telematics system to display status information to the driver. Another scenario is for the automotive powertrain system to communicate with a diagnostics tool, often a handheld computer or a personal digital assistant (PDA). In these cases, it is preferable to communicate over Ethernet and TCP/IP rather than those specifications defined by OSEK for communications between control units.

Cost and availability are two of the primary reasons to communicate over Ethernet and TCP/IP. The cost of Ethernet hardware and TCP/IP software is low when compared to competitive solutions, reducing further development costs since it is unnecessary to develop custom communications software for the external devices that need to communicate with the control units. Rather, commercial off-the-shelf (COTS) software and hardware can be used for the communications.

Accelerated Technology saw the demand for a robust TCP/IP protocol stack compatible with the OSEK specification and worked with a car manufacturer, building a racecar prototype, to bring this product to market. The Nucleus NET TCP/IP protocol stack was modified so it could be built in static mode, so that the software's resources were allocated upon initialization rather than allocated as needed. This results in a TCP/IP stack that is more deterministic, which is a critical requirement for most of the embedded systems in which OSEK is used.

Accelerated Technology provides a complete solution to automotive customers including an OSEK-compliant version of the real-time kernel, network management software and communications protocol for building automotive control units. For developers working on the telematics side of the automotive industry, Accelerated Technology provides a full suite of embedded products including the Nucleus PLUS real-time kernel, the Nucleus NET TCP/IP protocol stack, the Nucleus GRAFIX graphics package and various Web applications.

"The release of the Nucleus NET for OSEK complements our existing telematics and OSEK offerings. The automotive industry demands complete integrated solutions and a non-royalty business model, and we provide both," said Robert Day, director of marketing, Mentor Graphics Embedded Systems Division.

Pricing and Availability
Nucleus embedded software is sold with source code and without royalty fees. Licenses for Nucleus NET begin at $14,495. For more information, please contact Accelerated Technology at 800-468-6853 or

About Mentor Graphics
Mentor Graphics Corporation (Nasdaq: MENT) is a world leader in electronic hardware and software design solutions, providing products, consulting services and award-winning support for the world's most successful electronics and semiconductor companies. Established in 1981, the company reported revenues over the last 12 months of about $650 million and employs approximately 3,600 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777; Silicon Valley headquarters are located at 1001 Ridder Park Drive, San Jose, California 95131-2314. World Wide Web site:

Accelerated Technology, Embedded Systems Division of Mentor Graphics Corporation, is located in Mobile, Alabama with sales offices and distributors worldwide. By providing embedded systems developers with a focus on service, well-documented source code and industry-leading non-royalty-based Real-Time Operating Systems (RTOS) software, AT's RTOS software shortens time-to-market and provides a complete solution for engineers. For more information, please visit or email us at

Mentor Graphics and Accelerated Technology are registered trademarks and Nucleus is a trademark of Mentor Graphics Corporation.

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