The safety certified kernel for microcontrollers -
in less than 10K bytes!
SafeRTOS, from WITTENSTEIN high integrity systems, is the renowned
micro kernel that delivers superior performance and dependability
to safety critical applications.
SafeRTOS is delivered as
source code, with as much or little
certification evidence as
required. Certification packs and design history files are
available that specifically target applications that fall under
IEC 61508, EN62304 and FDA 510(k) regulatory requirements.
SafeRTOS has been specifically designed for the (primarily 32-bit)
microcontroller market, resulting in a design that is highly optimised for use
in applications where a small code size footprint is essential. The SafeRTOS
ROM footprint is typically in the 7K to 14K bytes range.
Relationship to FreeRTOS
FreeRTOS and SafeRTOS share a functional model, run on the
same class of microcontroller, and have similar
ROM and RAM requirements - but FreeRTOS and SafeRTOS are very different.
SafeRTOS has been developed by a team of safety experts at
WITTENSTEIN high integrity systems (WHIS). WHIS grew out from
WITTENSTEIN aerospace and simulation. Their mature and
rigorous development processes were originally developed for,
and used on, flight critical aircraft controls. Consequently,
the high integrity development life cycles are well and truly
institutionalised within the company working practices.
The FreeRTOS functional model was adopted for
a couple of reasons. First, most functional safety standards
require developers to prove a certain competency level. With
thousands of FreeRTOS developers around the globe, recruitment
of engineers who are already familiar with and competent in
using the functional model is made easier. Second, the easy availability of
FreeRTOS allows prospective SafeRTOS customers to evaluate
the usage model. An abstraction layer that allows FreeRTOS to
be used with the SafeRTOS API is in development to make this
even more compelling.
About WITTENSTEIN high integrity systems
Based in the United Kingdom, WITTENSTEIN high integrity systems (WHIS) are a
subsidiary of the WITTENSTEIN AG, a 150 Million Euro mechatronics company
spanning the globe. WITTENSTEIN AG are headquartered in Germany.
Originally established in the UK to write software for the aerospace
industry, WHIS now provide their software and systems skills and experience to
other industry sectors. There is particular interest from the medical and industrial markets,
and the WHIS development processes have been updated and adapted accordingly.
WHIS are an ISO9001:2008
and TickIT guide 5.5 certified company
for theDesign, development, installation and support of
high integrity systems and software for medical, aviation and industrial
Copyright (C) 2004-2010 Richard Barry. Copyright (C) 2010-2013 Real Time Engineers Ltd.
Any and all data, files, source code, html content and documentation included in the FreeRTOSTM distribution or available on this site are the exclusive property of Real Time Engineers Ltd..
See the files license.txt (included in the distribution) and this copyright notice for more information. FreeRTOSTM and FreeRTOS.orgTM are trade marks of Real Time Engineers Ltd.