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stm32 /stm32h7rs /STM32H7S /FLASH /FLASH_OPTKEYR

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Interpret as FLASH_OPTKEYR

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31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0OCUKEY

Description

FLASH options key register

Fields

OCUKEY

Options configuration unlock key Following values must be written to FLASH_OPTKEYR consecutively to unlock FLASH_OPTCR register: 1st key = 0x0819 2A3B 2nd key = 0x4C5D 6E7F Reads to this register returns zero. If above sequence is performed twice locks up the corresponding register/bit until the next system reset, and generates a bus error.

Links

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Register Reference

https://github.com/modm-io/cmsis-svd-stm32