X-CUBE-STL – Design package helps users to market STM32-based safety critical applications quickly, targeting the industry safety standard IEC 61508 safety integrity level (SIL2/SIL3) in domains such as industrial, motor control, factory automation, or power generation/conversion.
The package helps end-users to target safety applications according to various safety standards such as ISO 13849, IEC 62061 and IEC 61800.
For more info see here.