Software test libraries for STM32 Microcontrollers boost functional safety

November 24, 2014 // By Graham Prophet
Certification has been announced of YOGITECH’s Diagnostic Libraries, enabling SIL2(3) on STMicroelectronics’ STM32 MCUs.

Yogitech (Pisa, Italy), provider of functional safety solutions, has announced that its fRSTL libraries for STM32 microcontrollers from STMicroelectronics have been positively assessed by TÜV Rheinland for, among other attributes, functional safety certification.

Heinz Gall, Global Business Field Manager, Functional Safety of TÜV Rheinland, said, “Yogitech's fRSTL libraries have been positively assessed according to the IEC61508:2010 functional safety standard for the systematic capability (SC3) and the Diagnostic Coverage, making them suitable to be integrated into SIL2, HFT=0 and SIL3 HFT=1 applications. The final report and certificate will be issued by first week of December 2014”.

Detailed information could then be found on the certificate and version release list published on

fRSTL for ST’s STM32 MCUs is a set of software libraries addressing the STM32 microcontroller series, and intended to detect hardware random faults. They are an application-independent, off-the-shelf product designed to be easily integrated into safety-relevant systems.

fRSTL libraries build on fRMethodology, Yogitech’s techniques that apply functional safety to integrated circuits using a white-box approach, and are duly verified by means of intensive fault injection simulations on the RTL and netlist level, to which Yogitech has access thanks to a collaboration with STMicroelectronics.

The certification gives the end user of STM32 microcontrollers a family of libraries that greatly reduces development cost and certification effort. Being a standard product fRSTL has a big added value for risk avoidance, a paramount concern in the design of functional safety systems.

“Achieving stringent functional-safety certification on STM32-based embedded systems has become a very strong demand within our industrial customer base,” said Daniel Colonna, Marketing Director, Microcontroller division, STMicroelectronics. “With the release of YOGITECH’s state-of-the-art fRSTL solution certified by TÜV Rheinland, we are now able to reach this objective by enabling SIL2(3) on the complete STM32 portfolio.”

“Pervasiveness and complexity of modern integrated circuits are becoming increasingly a challenge for safety applications across all market segments, including industrial.” said Silvano Motto, Chief Executive Officer