STM32H563 DBank choose

renlei · ‎2026-01-28

Is the flash dual-BANK feature of H563 enabled by default?

How to switch banks

mƎALLEm · ‎2026-01-29

Hello @renlei and welcome to the ST community,

STM32H56x supports the dual bank by architecture.

To switch banks, modify the SWAP_BANK option bit using the FLASH_OPTSR_PRG register and perform a system reset to make the change effective.

Hope that helps

An example on how to swap the banks is available on github: https://github.com/STMicroelectronics/STM32CubeH5/tree/main/Projects/NUCLEO-H563ZI/Examples/FLASH/FLASH_SwapBanks

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