It's very likely someone with access to ST R&D office lifted the entire IP here... I know for a fact re-implementing a MCU as complex as a STM32 would be an ins

It's very likely someone with access to ST R&D office lifted the entire IP here... I know for a fact re-implementing a MCU as complex as a STM32 would be an insane amount of work -- especially to make it IP compatible... So if I were ST I'd have a closer look at which student were left in alone in the server room, and when!