Real-Time OS deployed on more than 3 billion devices
The Nucleus® RTOS is deployed in over 3 billion devices and provides a highly scalable micro-kernel based real-time operating system designed for scalability and reliability. System reliability can be improved using lightweight memory partitioning support that can function with or without MMU/MPU assisted protection in systems spanning the range of aerospace, industrial, and medical applications. Developers can make full use of multi-core solutions across the spectrum of Microcontroller and Microprocessor SoCs using SMP and AMP configurations to integrate multiple operating systems. To meet the power requirements of todays advanced designs, engineers can ease development with integrated power management in Nucleus that includes support for DVFS, deep sleep modes, and power/clock gating.
Key RTOS Features and Benefits
- Stable deterministic kernel with a small memory footprint (as low as 2 kb)
- Process model for memory partitioning to increase product reliability with and without MMIU
- Power management APIs for low-power design
- Connectivity (CAN, I2C, SPI)
- USB 2.0 and USB 3.0
- Networking and wireless connectivity
- Multicore Support includes xAMP and SMP support with rpmspg over virtIO and MCAPI for inter-process communication
- File system software for FAT and SAFE
- Data and network security
- Qt Framework: Rich UI development environment integrated with Nucleus RTOS
- Integrated development tools with Eclipse-Based IDE
- Extensive architecture support including ARM, MIPS, and Power
- Process model for memory partitioning to increase product reliability for devices with and without MMIU
Nucleus RTOS is available in the following configurations:
Learn More: Nucleus Real Time OS
Nucleus supports leading embedded architectures, including:
- Nios II
Demonstrations and downloads
Improving Embedded Systems reliability with a process model based RTOS
White Paper: The introduction of Nucleus Process Model to the Nucleus® Real Time Operating System (RTOS) maintains the key characteristics of an RTOS and adds many of the benefits of a large scale OS, such as dynamic...
Measuring RTOS Performance: What? Why? How?
White Paper: In the world of smart phones and tablet PCs memory might be cheap, but in the more constrained universe of deeply embedded devices, it is still a precious resource. This is one of the many reasons why most...
Nucleus user forums — discussions, design tips, sample designs and more. Visit
Honeywell chose Nucleus Real Time OS to develop its critical Enhanced Ground Proximity Warning System because of Nucleus' aviation industry reputation for reliability, efficiency, and scalability.
The Nucleus operating system provided Garmin with the full source code and flexible business model they needed to develop the CNX80 Avionics Navigator system.
ZOLL chose Nucleus to build its AED Plus™ automated external defibrillator, based on previous Nucleus design successes and its ability to reduce costs.