Experts in embedded RTOS, with a specialisation in safety certified software



blue processor symbolic rtos

IoT Partners


AWS Advanced Technology Partner

AWS and WITTENSTEIN high integrity systems have formed a strategic business alliance. WITTENSTEIN high integrity systems is an Advanced Technical Partner of Amazon Web Services (AWS). AWS is a secure cloud services platform, offering computing power, database storage, content delivery and other functionality to help businesses scale and grow.

Amazon FreeRTOS provides tools you need to quickly and easily deploy a microcontroller-based connected device and develop an Internet of Things (IoT) application without having to worry about the complexity of scaling across millions of devices. Once connected, IoT device applications can take advantage of all of the capabilities of the cloud or continue processing data locally with AWS Greengrass.

wolf SSL Logo

wolfSSL focuses on providing lightweight and embedded security solutions with an emphasis on speed, size, portability, features, and standards compliance. Dual licensed to cater to a diversity of users ranging from the hobbyist to the user with commercial needs.

As an Open Source security software company providing secure communication for IoT, smart grid, connected home, automobiles, routers, applications, games, IP, mobile phones and more, our Open Source approach provides customers the freedom to look under the hood.

All of wolfSSL’s products are 100% made in the USA and have been since the company’s birth in 2004. The company is based in Bozeman, MT, Seattle, WA, and Portland, OR. All product support provided by wolfSSL.

Learn More at

Semiconductor Partners



Broad support for ARM Cortex M, R and A architectures. Also support GCC tool-chain and Eclipse based plug-in provides kernel aware debug.

Atmel Logo

AVR and AVR32 are supported with OPENRTOS, SAFERTOS and the popular ‘State-Viewer’ Eclipse based plug-in. The AVR32 and ATMegaAVR are supported using Rowley, IAR and GCC based tool-chains.


OPENRTOS & SAFERTOS ports for Fujitsu controller families 16FX and MB91460 family.

Premier Microchip Third Party Partner

WITTENSTEIN high integrity systems proudly supports the Microchip brand with OPENRTOS. Visit the Microchip Technology website for more information by clicking here.

Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.


SAFERTOS and OPENRTOS are available for SmartFusion and SmartFusion2 from Microsemi. For demos visit our download page.


Extensive OPENRTOS & SAFERTOS support for the LPC2000 series of ARM7 based processors with many popular tool-chains including Eclipse, GCC, Keil, Rowley and IAR

OPENRTOS for Freescale Coldfire V2, which supports Codewarrior v7.x and Eclipse/GCC. Eclipse based pug-in provides kernel aware debug. Other architectures supported include the popular HCS12 family.

Renesas Gold Partner

Extensive OPENRTOS & SAFERTOS support across the range of microcontrollers and microprocessors from Renesas for many popular tool-chains. More about Renesas at

ST Partner Logo

The STM32 range from ST combines very high performance, real-time capabilities, digital signal processing, and low-power, low-voltage operation, while maintaining full integration and ease of development.

SAFERTOS and OPENRTOS offer extensive support for STM32 Cortex M3, M4, M0 and M7 architecture. There is broad support for tools including IAR, Rowley, Keil and GCC/Eclipse.

More about the STM32 at

Texas Instruments

SAFERTOS® is now available from Texas Instruments free of charge, pre-embedded in the ROM of the LM3S9B96. The Texas Instruments Stellaris Family Development Kit provides the hardware and software tools that engineers need to develop and prototype embedded applications right out of the box. Includes support for OPENRTOS & SAFERTOS.

Download SAFERTOS demos for Texas Instruments here.

Visit the Texas Instruments website here.

Xilinx alliance program member

SAFERTOS and OPENRTOS offer extensive support for Xilinx processors, including the Zynq-7000, UltraScale MPSoC, PowerPC and Microblaze.

Tool Partners


Synopsys’ DesignWare® ARC™ Processor Cores are a family of 32-bit CPUs that SoC designers can optimize for a wide range of uses, from deeply embedded to high-performance host applications. Designers can differentiate their products by using patented configuration technology to tailor each ARC core instance to meet specific performance, power and area requirements.

Atollic provides professional C/C++ development and testing tools. TrueSTUDIO® is a C/C++ compiler/debugger IDE with real-time tracing and advanced features for team collaboration and code reviews. The optional add-on modules TrueINSPECTOR®, TrueANALYZER® and TrueVERIFIER® adds features for static source code analysis, test quality measurement and embedded test automation as well.

Innovative tools for rapid 32-bit embedded microcontroller development. Includes wizards and kernel aware debug for OPENRTOS and SAFERTOS for ARM Cortex M3, supporting microcontrollers from NXP with the LPC17xx and LPC2xxx MCU’s, and the Luminary Micro with the Stellaris MCU’s.

GCC based compilers are extensively used with OPENRTOS and SAFERTOS projects on ARM7, Cortex-M3 and Freescale Coldfire V1 & V2 architectures. When used with the free Eclipse based plug-in this is a powerful, professional toolchain at a very low price.

The free Eclipse based plug-in from WITTENSTEIN high integrity systems is available for download and provides a professional level of debug capability for OPENRTOS and SAFERTOS.

HighTec EDV Systeme is a privately owned company since establishment in 1982 and the world’s largest commercial open source compiler vendor.

HighTec ensures independence for the future and the most reliable and secure tools for embedded software development. The HighTec compiler is portable and always available for the latest chip revisions for their supported architectures ahead of general release.

Their innovative team is highly skilled and dedicated to quality. They are passionate about what they do and support their customers to both sustain and advance their market position.

For more information please visit

IAR logo

IAR Systems® is the world’s leading independent supplier of development tools for embedded systems. The highly optimizing C/C++ compiler and debugger tool suite IAR Embedded Workbench® is available for 8-, 16-, and 32-bit microcontrollers from all major vendors, including all ARM cores. IAR Systems also provides a range of integrated in-circuit debugging probes and starter kits, and the graphical state machine design tool IAR visualSTATE®.

IAR Systems is headquartered in Sweden, and has sales and support offices in the US, Brazil, Japan, Korea, China, Germany, France, and the UK, and distributors in 25 additional countries. More information is available at

IAR Embedded Workbench are used extensively across the OPENRTOS and SAFERTOS product family. The safety certified version of IAR Embedded Workbench for ARM supports SAFERTOS.

iSYSTEM – The Embedded Software Tools Company – provides leading software development and test tools fora wide range of 8 through 32-bit CPU architectures. winIDEA – the integrated development platform – includes kernel aware debug and run time analysis support for SAFERTOS. testIDEA is a unique software test tool requiring no code instrumentation.

Wide ranging use of Keil compilers and IDE on Arm7 and Cortex M3 architectures for OPENRTOS and SAFERTOS.

Kernel aware debug provides easy access to task lists and other kernel information, generates performance analysis data and debug information on TRACE32 systems on targets running OPENRTOS and SAFERTOS.

Percepio Logo

Percepio Tracealyzer is the premier RTOS visualization tool for OPENRTOS and SAFERTOS. Reveal what is actually going on in embedded and IoT systems during runtime. Trace the real-time behavior of your OPENRTOS or SAFERTOS based system, and gain insight with sophisticated visualization. Over 25 tightly connected views provide a multitude of angles to view your data from, allowing you to spot and debug difficult timing issues which would otherwise be invisible. Avoid the guesswork and boost your productivity. Find bottlenecks and improve performance.

Find out more at or

pls development tools

PLS Development Tools, based in Lauta, Germany, was founded in 1990. With its innovative modular test and development tools, the company has demonstrated for over two decades its position as an international technology leader in the field of debuggers, emulators and trace solutions for 16-bit and 32-bit microcontrollers. The software architecture of the Universal Debug Engine (UDE) guarantees optimal condition for debugging SoC-based systems. For example, by means of the intelligent use of modern on-chip debugging and on-chip trace units, valuable functions such as profiling and code coverage are available for the system optimization. Furthermore, the associated Universal Access Device (UAD2/UAD3+) product family, with transfer rates of up to 3.5 MBytes/s and a wide range of interfaces, offers entirely new dimensions for fast and flexible access to multi-core systems.

Important architectures such as TriCore, Power Architecture, XC2000/XE166, ARM, Cortex, SH-2A, XScale and C166/ST10 as well as simulation platforms of different vendors are supported.

Rowley Crossworks is used for OPENRTOS on a broad range of ARM, MSP430 and AVR based processors.

OPENRTOS and SAFERTOS are now available for use with the TASKING tool chain.

The TASKING products from Altium are world-leading tools for embedded software development, bringing together the advanced software design technology needed to compete in the embedded communications era. The award-winning TASKING integrated development environment, compiler, and debugger offerings support a wide range of DSPs and 8-, 16- and 32-bit microprocessors and microcontrollers for all areas of embedded development.


VectorCAST is the fully integrated solution for critical application development. The VectorCAST Test Automation Platform’s close integration with WITTENSTEIN high integrity systems’ SAFERTOS is the solution for organizations to Test and Verify applications including those under IEC 61508, EN 62304, and FDA 510(k) regulatory requirements. Multiple target environments and architectures are simultaneously supported using the latest development methodologies, including Continuous Integration with Change Impact Analysis.

Design Partners



BitWise has worked with WITTENSTEIN on a number of different customer projects in Europe and the USA.  Specialising in safety critical software development, BitWise is an ISO9001/27001/13485 accredited design and development services company providing product development assistance to R&D teams.

For over 25 years BitWise has successfully delivered complex projects to some of the world’s leading technology companies. Clients use BitWise services to help solve a number of business challenges, for example: design for product line reuse, strategies for turning legacy software into next generation product and independent review/verification for FDA, ISO26262 or IEC61508 SIL3/4.

BitWise Group Website


Hitex GmbH enjoys a leading position in development, manufacturing and marketing of professional development tools for embedded systems. Hitex offers expert consultancy services to support users throughout the complete development cycle.

Hitex are a SAFERTOS distributor.

Medical Devices Software Engineering Development Processes

Matthias Hölzer-Klüpfel is an independent consultant concerned with development processes and project management for medical devices with an emphasis on medical software. He is heading the association “International Certified Professional for Medical Software Board e.V.” which provides the foundation for a certified education program for medical device software development. Matthias provides first-hand experience in applying SAFERTOS to medical control and safety systems.



Beijing Microtec Software Technologies Ltd. (BMR) is an embedded software solution company founded in 1995, located in China.

With more than 20 years of experience, BMR is a world leading embedded software business cooperation supplying traditional embedded software tools, operating systems, middleware and general-purpose products including IAR, Atollic, Interniche, Percepio, etc.

BMR is collaborating closely with some of the biggest semiconductor manufacturers in the world, such as ST, NXP, and TI.

The company is focused on industrial control, consumer electronics, communications, IoT and other areas of scientific research and embedded system education.

BMR is WITTENSTEIN high integrity systems’ distributor in China. They say this about SAFERTOS:

SAFERTOS是一个针对嵌入式处理器的安全认证实时操作系统,被专门设计用于安全关键应用。它提供了卓越的性能和预认证的可靠性,同时使用最少的系统资源。SAFERTOS软件基于FreeRTOS功能模型,通过了TÜV SÜD IEC61508-3 SIL 3和ISO26262 ASIL D认证,并提供完整的源代码和设计保证包(DAP)。

For more information, please visit their website.