UM1786 missing HAL_OPAMP section entirely. Revision 5 claims to have added it on 19- Jul-2016.

[JStei.5]

The documentation for the OPAMP peripheral on the STM32F3 series is completely missing from UM1786. The list goes from (Section 30) "IWDG" to (Section 31) "PCD". Hopefully there aren't more things missing from that range.

[JStei.5]

Actually it looks like NAND, NOR, OPAMP, and PCCARD all are missing.