Best Real-Time Operating Systems (RTOS) in India

VxWorks®, a leading real-time operating platform in the industry, provides all the performance, reliability, safety and security capabilities you need for the most critical infrastructure's embedded computing systems. VxWorks is a preemptive, deterministic RTOS that prioritizes real-time embedded applications. It has low latency and minimaljitter. VxWorks has many security features that address the evolving security threats connected devices face at every stage, from boot-up to operation to data transfer to powered off. VxWorks has been certified to IEC 61508, ISO 26262, and DO-178C safety standards. VxWorks is built on an extensible, future-proof architecture that allows you to quickly respond to changing market demands, customer needs, technological advancements, and preserves your investment.

RT-Thread, short for Real Time-Thread, is an embedded real-time multi-threaded operating system. It has been designed to support multi-tasking, allowing multiple tasks to run simultaneously. Although a processor core can only run one task at a time, RT-Thread executes every task quickly and switches between them rapidly according to priority, creating the illusion of simultaneous task execution. RT-Thread is mainly written in the C programming language, making it easy to understand and port. It applies object-oriented programming methods to real-time system design, resulting in elegant, structured, modular, and highly customizable code. The system comes in a few varieties. The NANO version is a minimal kernel that requires only 3KB of flash and 1.2KB of RAM. For resource-rich IoT devices, RT-Thread can use an online software package management tool, together with system configuration tools, to achieve an intuitive and rapid modular design.

FreeRTOS, which was developed in partnership with some of the world's most renowned chip companies over a 15 year period, is now downloaded every 170 second. It is a market-leading real time operating system (RTOS), for microcontrollers, small microprocessors. FreeRTOS is freely distributed under the MIT open-source license. It includes a kernel as well as a growing number of IoT libraries that can be used across all industries. FreeRTOS is designed with reliability and ease-of-use in mind. The FreeRTOS kernel has been trusted by leading companies around the world as the standard for microcontrollers/small microprocessors. It is known for its reliability, small footprint, and wide device support. You don't need to know how to set up a project. There are pre-configured demos that can be used as templates and IoT reference integrations. You can quickly download, compile, then get to market quicker. Our partner ecosystem offers a variety of options, including professional support and community contributions.

Arm Mbed OS, an open-source IoT operating platform, is free and available for download. It includes all the features needed to create IoT products. The OS contains everything you need for smart, connected products that run on Arm Cortex M based hardware. This includes machine learning capabilities, security stacks, connectivity stacks, and drivers for sensors and other I/O devices. Arm Mbed OS was designed for the Internet of Things. It integrates with connectivity, machine-learning, networking, security stacks, and is supported by software libraries, tutorials, hardware, and examples. Mbed OS supports over 70 silicon, module and cloud partners. This allows you to optimize your developer choice. Mbed OS API allows you to keep your application code clean, portable, and easy while taking advantage security, communications, and machine learning. The integrated solution reduces development time, cost, and risk.

embOS (real-time operating systems) is a priority-controlled, RTOS (real time operating system). It was designed to be the foundation of embedded applications and has been continuously developed since 1992. Since 1992, embOS is the preferred RTOS for embedded market engineers. It is easy-to-use and guarantees 100% deterministic, real-time operation on any embedded device. This real-time operating platform is portable and fully compatible with all platforms. It also allows for easy portability to other cores. You can create tasks and communicate with others easily using communication mechanisms like semaphores and mailboxes. The real-time operating system can be used for non-commercial purposes such as education and evaluation without any technical limitations.

INTEGRITY uses hardware-memory protection to protect embedded applications. Secure partitions ensure that each task has the resources it requires to run properly and fully protect the operating systems and user tasks from malicious code, such as denial-of service attacks, worms, or Trojan horses. Green Hills Software provides a wide range of middleware that has been integrated and validated for INTEGRITY. This includes FFS, FAT and NFS file systems, journaling file system, IPv4/IPv6 routing and networking stacks, FIPS 140-2 Suite B certified embedded encryption library, as well as FFS, FAT and NFS. Each package has been tested and pre-integrated to work seamlessly with INTEGRITY's advanced RTOS capabilities. Green Hills Software provides platforms that offer a fully integrated ecosystem for certain industries. Each platform includes both the INTEGRITY ROS and development tools.

LynxOS is used in millions of embedded devices. It has been reliable for over 30 years in multiple safety- and security-critical embedded markets. It is a proven method for hosting applications on Unix-like OS models. All resources and application services are centrally managed and controlled by a single kernel. This is ideal for working with older hardware architectures. We want our customers only to purchase what they require. While real-time operating systems can be a great asset to embedded system designs, they are not necessary. Our RTOS-related resources are listed in our Embedded Systems Learning Center. This center contains helpful information to help you make software purchases as you design, update, and maintain your system. It also provides information on which real-time platform vendor is best for you.

SCIOPTA architecture was specifically designed to deliver high real-time performance with a small footprint. High-quality optimizations have been made to optimize internal data structures, memory management, and interprocess communication. SCIOPTA is a preemptive real-time kernel. Interrupts can be handled at any time, even within the kernel. SCIOPTA, a message-based real-time operating platform, is available. To manage the resources, a powerful set of system calls can be used. Clear system designs are possible thanks to standard processes and interprocess communication. They are easy to understand, write and maintain. SCIOPTA systems can be used to facilitate teamwork in large projects because they communicate with clearly defined messages. This will dramatically reduce the time-to-market. SCIOPTA uses a message-based architecture that allows for direct message passing between processes. Messages are used mainly for interprocess communication and synchronization.

The Keil RTX operating system is royalty-free and deterministic. It's designed for ARM or Cortex-M devices. It allows you to create programs which perform multiple functions simultaneously and helps you create applications that are more structured and easier to maintain. Source code, royalty-free, deterministic and deterministic RTOS. Although it is possible to create real time programs without an operating system (by running one or more functions in Super-loop), there are many scheduling, maintenance and timing issues that an operating system like the Keil RX can solve. An RTOS is a better alternative to Super-loop. High-Speed real time operation with low interrupt latency. Resource constrained systems require a small footprint. Unlimited number of tasks, each with 254 priority levels. Unlimited number of mailboxes, semaphores and mutex. Multithreading and thread-safe operation support.

PikeOS is a separation kernel-based hypervisor that supports multiple partitions for many operating systems and applications. It allows you to create smart devices for the Internet-of-Things. PikeOS is the best choice for systems that require protection against Cyber-Security attack due to its separation kernel approach. It is widely used in millions of edge and IoT systems. However, it has also been deployed in critical communications infrastructures. PikeOS combines virtualization and real time with unique technologies that have never been seen before. It allows you to move multiple complex embedded circuit boards into one hardware. It is also able to handle new hardware concepts like Big-SoCs that have multiple heterogeneous cores. PikeOS can run on multiple architectures and support processors that have a memory management unit (MMU).

QNX's real time operating systems have been used by thousands of companies since 1980 to provide the best combination of security, performance, and reliability in mission critical systems. The core of QNX technology lies in the QNX Neutrino® Real-time Opera System (RTOS), which is a fully-featured RTOS that enables next-generation products in all industries where reliability is important, such as automotive, medical devices and transportation. A component failure does not affect the kernel or other components of the QNX microkernel architecture. The system can be shut down and restarted with no adverse effects from the failed component. The QNX Neutrino RTOS provides the determinism that only a real-time operating system can offer. Techniques like adaptive partitioning ensure critical processes get the cycles they require to complete their tasks on schedule while still maintaining the performance required by complex embedded systems.

Deos™, DDC–I's safety-critical space partitioned real time operating system (RTOS), has been tested to the guidance DO-178C/ED-12C Design Assurance level A (DAL-A) for Avionics Applications. It supports ARINC 653, APEX, and rate monotonic scheduling (RMS) and is targeted at FACE Safety Base Profile. Since 1998's audit by Transport Canada, it has been field-proven as a safety-critical RTOS. It has been certified and is currently flying in tens of thousands of aircraft. It has evolved over the past two decades with new processors or features in subsequent baselines. It has been audited successfully by various governmental certification agencies (FAA, ENAC and JAA, EASA and EASA), and airframe and Avionics Supplier Designated Engineering Representatives.

The MQX real time operating system (RTOS), provides real-time performance in a small, configurable footprint. The RTOS is tightly integrated to 32-bit MCUs from NXP, and comes with common device drivers. The MQX-RTOS has a component-based microkernel design that allows for customization by feature, size, speed, and satisfies embedded system memory constraints. The MQX RTOS can take as little as 8 KB ROM and 2.5K RAM on Arm Cortex M4, including kernel and 2 task applications, 1 LW Semaphore and interrupt stack, queues and memory manager. This RTOS core provides additional, optional services. The components are only linked in when they are needed. This prevents unused functions from bloating memory. For further control over size, RAM/ROM utilization, and performance options, key components are available in lightweight and full versions.

Tizen is an open-source, flexible operating system that was built from the ground up to meet the needs of all stakeholders in the mobile and connected device ecosystem. This includes device manufacturers, application developers, and independent software vendors (ISVs). Tizen platform can be used on smart TVs, smartphones and wearable devices (Gear S and Gear Fit) as well as smart home appliances. Low-end and lower-cost IoT devices such as wearable bands with small LCDs and home appliances without display have received less attention. TizenRT aims to expand Tizen platform device coverage for these low-end devices.

Huawei LiteOS, an IoT-oriented platform software platform, integrates an IoT operating systems and middleware. It is lightweight with a kernel size under 10 KB and consumes very little energy -- it can run on an average AA battery for up five years! It is also very secure and allows for quick startup. Huawei LiteOS is a powerful, yet simple software platform that allows developers to create their own applications. This reduces barriers to entry and speeds up time to market. Huawei LiteOS is an open-source API that provides a unified, unified interface that can be used in a variety of IoT domains such as smart homes, wearables and intelligent manufacturing. Huawei LiteOS enables IoT open ecosystem, allowing partners to rapidly develop IoT products and accelerate IoT innovation.

The u-velOSity RTOS, the smallest member of Green Hills Software's range of real-time operating system families, is called "the u-velOSity RTOS". It is a C library that can be easily port to many target architectures. It is simple to use and has a clean design. u-velOSity provides a concise API that makes it easier to develop products and reduces time. This allows you to reduce costs and speed up time-to-market. Developers who want to move from standalone or no OS configurations. u-velOSity is more compatible with on-chip memory due to its compact design and minimal footprint. The execution speed is dramatically increased by removing the need to access offchip memory. u-velOSity was created to reduce the number of CPU clock cycles required to boot embedded devices that have very fast boot times. u-velOSity is the ideal RTOS for embedded devices that have high power requirements.

OpenWrt is an extensible GNU/Linux distribution that can be used on embedded devices (mostly wireless routers). OpenWrt, unlike other router distributions, is a fully-featured and easily modifiable operating systems for embedded devices. This means that you can have all of the features you want with no bloat thanks to a modern Linux kernel. OpenWrt allows you to create a single static firmware instead of trying to create one. It also provides an optional filesystem that can be writable with package management. This allows you to bypass vendor restrictions on application selection and configuration and allows you to use packages for customizing embedded devices to suit any application. OpenWrt is a framework for developers to build applications without the need to create a full firmware image and distribute it.

FreeRTOS is an open-source, real-time operating software for microcontrollers. It makes it easy to program, deploy and secure small-power edge devices, as well as connect them. FreeRTOS is freely distributed under the MIT open-source license. It includes a kernel as well as a growing number of software libraries that can be used across all industry sectors and applications. This includes connecting low-power devices securely to AWS Cloud services such as AWS IoT Core and to more powerful edge devices running AWS IoT Greengrass. FreeRTOS is designed to be reliable and easy-to-use and has long-term support releases. A microcontroller is a small, resource-constrained processor which can be found in many devices such as sensors, automobiles, fitness trackers, automobiles, and appliances.

Nucleus®, RTOS allows system developers to address complex requirements posed by today's embedded designs. Nucleus combines kernel-rich functionality with tooling features that are ideal for applications that require a scalable footprint and connectivity. Nucleus RTOS has been proven to be reliable and highly optimized. Nucleus has been deployed in high-security markets that have strict safety and security requirements, such as automotive, medical devices, and airborne systems. A stable deterministic kernel that has a small memory footprint. Optimized memory partitioning using a lightweight process model. Dynamically load and unload applications for greater modularity.

We work with commercial and open-source partners to provide MIPS support to many popular Real Time Operating Systems (RTOS), and the new generation IoT-specific Operating Systems. We also developed the MIPS Embedded Operating System, (MEOS), with Virtualization extensions. This targets embedded applications and the IoT area. MEOS is MIPS' internal real-time operating software (RTOS). It is the only operating system that supports new architecture features and cores, as it is in-house. Version 3.1 of MEOS contains a virtualization library that extends MEOS to a hypervisor for MIPS cores that implement the MIPS Virtualization module. We will donate engineering resources or provide development hardware and tools to assist in the development of open-source real time/IoT operating system.

TI-RTOS speeds up development by eliminating the need for basic system software functions to be created from scratch. TI-RTOS can scale from a real time multitasking kernel - TIRTOS Kernel – to a complete RTOS system including additional middleware components and device drivers. Developers can design applications that have a longer battery life using TI-RTOS combined with TI's ultra-low-power MCUs. TI-RTOS allows developers to concentrate on the uniqueness of their application by providing pre-tested and integrated essential system software components. TI-RTOS is based on proven software components that have been tested and validated to ensure quality and reliability. These components are supplemented with documentation, additional examples, and APIs that can be used for multitasking development. Integration testing is also possible.

Azure RTOS is an embedded development package that includes a small, but powerful operating system. It provides reliable, fast performance for resource-constrained devices. It is easy to use and has been tested on more than 10 million devices around the world. Azure RTOS supports 32-bit microcontrollers as well as embedded development tools. This allows you to make the most out of your existing skills. Connect to local and cloud networks easily, create durable flash file systems, design user interfaces, and connect to the cloud and local network. Code that has been tested and certified to meet industry safety and security standards. Clear code is easier to maintain and use, and can reduce the total cost of ownership. Safety-related certifications will require that you submit the entire source code of your software, including the RTO.

SAFERTOS®, a pre-certified safety Real Time Operating System, (RTOS), for embedded processors. It provides superior performance and pre-certified dependability while consuming minimal resources. SAFERTOS®, which is tailored to your processor/compiler combination, comes with full source code and our Design Assurance Pack. The DAP provides complete transparency over the entire Design Life Cycle and highlights the exceptional quality of our RTOS product. Our extensive Safety Critical design experience has made it easy and straightforward to certify SAFERTOS®, integrated into a product. SAFERTOS®, which is a safety-related standard, has been specifically designed. Deterministic priority-based scheduling is the primary Safety Requirement. We have made every effort to ensure that deterministic behavior is maintained.

Enea OSE, a robust, high performance, real-time operating system, is optimized for multiprocessor systems that require deterministic real time behavior and high availability. It reduces development time, improves reliability, and lowers lifetime maintenance costs for a wide variety of systems, including wireless devices, automobiles, medical instruments, and telecom infrastructure. Enea OSE is optimized to handle communication and control systems that require high performance and hard-real-time characteristics. It is used extensively in areas such as telecom networking systems, wireless devices and industrial automation. The Enea OSE multicore kernel, twice awarded with an award, provides Symmetric Multi-Processing and Asymmetric Multi-Processing (SMP) along with the scalability of Asymmetric Multi-Processing and determinism (AMP) and the performance and reliability of bare metal.

From simple embedded environmental sensors to advanced embedded controllers and smart watches to IoT wireless applications, there are many options. Implements configurable architecture-specific stack-overflow protection, kernel object and device driver permission tracking, and thread isolation with thread-level memory protection on x86, ARC, and ARM architectures, userspace, and memory domains. Supports combining application-specific code and a custom kernel on platforms without MMU/MPU or memory constrained devices to create a monolithic images that are loaded and executed on a system’s hardware. Both the kernel and application code are executed in a single address space.