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ST and YOGITECH jointly launch the STM32 microcontroller Safety Design component

Mar 2 2015 2015-03 Connectors STMicroelectronics
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ST and YOGITECH, the world's leading provider of functional safety solutions, have successfully developed a software design support component with excellent flexibility to help simplify the development and certification process for safety-critical systems based on STM32 microcontrollers.

     ST and YOGITECH, the world's leading provider of functional safety solutions, have successfully developed a software design support component with excellent flexibility to help simplify the development and certification process for safety-critical systems based on STM32 microcontrollers.

     The collaboration began in November 2013 and has resulted in the development of a STM32 application design safety manual and a software test library (fRSTL) compliant with the IEC61508:2010 Functional safety standard. YOGITECH uses its patented fRMethodology white-box security analysis and functional verification methodology to create the fRSTL software test library and associated suite of tools (fRTools) to ensure diagnostic test coverage is more accurate and reliable than traditional black-box testing.

     Customers can choose to develop their own software test library by referring to the STM32 security manual. These safety manuals can be downloaded free of charge from ST's website (www.st.com). On the other hand, the YOGITECH fRSTL_stm32 test library can also provide a package of software test libraries that can accelerate the IEC 61508 Functional safety standard integrity Level (SIL)2/3 certification, while minimizing test costs and development risk. Each approach enables the establishment of a safety-critical system that complies with industry standards and is based on a STM32 microcontroller, without the need for a dedicated safety microcontroller with a specified on-chip diagnostic circuit.

     Michel Buffa, General Manager of ST MicroController Products, said: "With the introduction of our safety-designed components, the STM32 microcontroller family offers the ideal solution for a wider range of industrial applications that comply with IEC 61508 safety-critical standards. The safety manual provides the necessary guidance and examples on how to properly use the STM32 microcontroller in a secure environment, while the affordable YOGITECH test library helps speed up the safety standard integrity level certification process and lead to a successful final certification."

     Silvano Motto, CEO of YOGITECH, said: "By partnering with ST, we are able to offer STM32 users a standard product with unmatched quality and convenience. The fRSTL_stm32 software library further expands our portfolio of safety-critical systems IP, demonstrating YOGITECH's leading position in the IEC61508 standard and its derivatives for integrated circuits."

     Safety manuals and software libraries support the STM32 F0, F1, F2, F3, F4 and L1 series, which together provide more than 500 products with high performance and rich features for safety-critical applications. In the near future, ST will also add support for the rest of the STM32 family. The System Function (SC3) of the fRSTL software library has passed the certification test conducted by TUV Rheinland in accordance with the IEC61508:2010 functional safety standard. Its diagnostic coverage has also passed the DC fault-tolerant model tests for the highest applications including SIL2 (hardware fault-tolerant -HFT=0) and SIL3 (HFT=1). The safety manual also instructs engineers on how to manipulate test results under other functional safety standards, such as ISO 13849, IEC 62061, IEC 61800, IEC 60730 and ISO 26262.

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