Nucleus RTOS
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Nucleus_RTOS".

Nucleus OS is a real-time operating system (RTOS) and full-featured toolset created by the Embedded Systems Division of Mentor Graphics for various CPU platforms. Nucleus OS is part of a complete embedded solution with a full complement of embedded middleware available.

Development is typically done on a "host" machine running Windows or Linux. Target applications can be compiled to run on various "target" CPU architectures and tested using the actual target boards, simulators or via the "host" using EDGE SimTest.

Nucleus OS is designed for embedded applications including consumer electronics, set-top boxes, cellular phones, and other portable and handheld devices. For limited memory systems Nucleus OS can be scaled to a footprint as small as 13 KB for both code and data.

The small footprint is a key reason for using Nucleus.

Components

Kernel

• Real time kernel
• C++ and POSIX interfaces
• Dynamic download
• Interprocessor communications
• Closed Source (however, the source code is available to customers, making it easier to debug than a closed operating system)
• Flexible business model

Connectivity

• USB 2.0 Host, Function and On-The-Go (OTG) stacks
• Class drivers
• Multimedia transfer (MTP and PictBridge)
• PCI and PCI-X
• CAN and CANopen

Networking

Over 60 network drivers and protocols including TCP/IP stack, IPv6 and IEEE 802.11 wireless

File System

• FAT
• ISO 9660 CD-ROM
• Virtual file system API

Graphics

• Low-level rendering
• Full windowing system
• Multi-media GUI control framework

Security

Encryption, hash and signature algorithms, key exchange protocols

Products using Nucleus OS

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Mentor Graphics has provided software to over 1,000 companies worldwide. The devices featured are a small sample of consumer and industrial companies developing applications with Nucleus products.

• Nucleus OS used by Honeywell for Critical Terrain Awareness Technology in the Aviation Industry.
• IVL Technologies' On-Key Karaoke Handheld Player Sings along with the Nucleus PLUS Kernel.¹
• Logitech uses Nucleus OS in its Pocket Video Portable Digital Video Cameras.
• Nucleus OS Selected By SK Telecom To Introduce the World's First Commercialization of CDMA Technology To Korea.
• Nucleus used in NEC America's Award-Winning 535M High Definition Mobile Handset
• ASC's RBOX Multi-Service Aggregator Family uses Nucleus PLUS.²
• Texas Instruments makes use of Nucleus on some of its embedded devices
  • The TI-Nspire handheld calculators use Nucleus as the basis of their operating system³
• Telephonics is using Nucleus in the SDI System for the USAF C-130 Avionics Modernization Program and the Aviation Communication System for the 767 Tanker Program.⁴
• Garmin International to develop the CNX80 navigational global positioning system (GPS) for general aviation.
• A large number of Motorola, Samsung, LG, Siemens/Benq, Sagem and NEC mobile phones.
• Intellon Home Plug AV
• Crestron Electronics on their control system processors.⁵
• BSS Audio in their Soundweb London range.⁶
• Later versions of the Creative ZEN product line.
• The Infineon S-Gold2 baseband chip used in Apple's iPhone
• The Metrotech i5000 Utility Locating Receiver.
• The Creative Zen Vision line uses Nucleus as their operating system

Competitive operating systems

Similar real-time operating systems are available from other vendors. These are linked by their popularity according to the 2007 Embedded Systems Market Study by Embedded Systems Design magazine.

• VxWorks
• Windows CE
• IX Linux
• DSP/BIOS
• uC/OS-II
• MV Linux
• Keil RTX
• Integrity
• ECos
• QNX
• LynxOS
• pSOS
• ThreadX
• OSE
• TRON
• embOS
• uClinux

References

External links

• Nucleus OS