WITTENSTEIN: SAFERTOS celebrates FreeRTOS 15 Year Anniversary

2018 marks FreeRTOS’s 15th anniversary, and 11 years of continued SAFERTOS support. SAFERTOS is the safety critical upgrade for FreeRTOS, and now has more safety critical features than ever. SAFERTOS continues to support FreeRTOS into the future.

FreeRTOS is a Real Time Operating System, or RTOS, created by Richard Barry of Real Time Engineers, and more recently stewarded by Amazon Web Services (AWS). It supports more than 35 architectures and was downloaded once every 3 minutes during 2017. It is professionally developed, strictly quality controlled, robust, supported, and free to embed in commercial products.

SAFERTOS is a pre-certified, pre-emptive, safety critical RTOS based on the functional model of the FreeRTOS kernel. SAFERTOS delivers determinism and robustness to embedded systems, whilst using minimum resources. Due to the shared functional model SAFERTOS is simple to use, but it has been completely redesigned by our team of safety experts. WHIS engineers took the FreeRTOS kernel functional model, subjected it to a full HAZOP, identified all areas of weakness with respect to safety within the functional model and API, and generated a set of safety requirements. The resulting functional and safety requirements sets were put through an IEC 61508-3 SIL 3 development life cycle, the highest possible for a software only component, creating the SAFERTOS code base and DAP.

To upgrade from FreeRTOS to SAFERTOS is straightforward. Many developers prototype using the FreeRTOS kernel and convert to SAFERTOS at the start of their formal development phase. WHIS engineers have created a manual that contains step by step instructions on how to upgrade, which is freely available as part of the free SAFERTOS download package.

More Information...

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