to achieve a SIL2 by using a STM32F4 MCU a periodical core self-test is required. So the CPU itself and the FPU shall be tested. STM is giving us the manual "UM1840: STM32F4 series safety manual" (http://www.st.com/en/embedded-software/stm32-safesil.html).
At Chapter 3.6.1 it is said that:
"Permanent faults affecting the CPU Core ARM® Cortex®-M4 (including also the FPU) are addressed through a dedicated software test executing a sequence of instructions and data Transfers."
Also STM is giving us the Software "STM32-CLASSB-SPL" to achieve a safe MCU and its periphals.
I can't find the part regarding the FPU self-test.
Do i miss something?
Is it possible to test a FPU and get a adequat diagnostic coverage?
Im thankful for any help,