Recommended · for some experience

Getting Started: how to use STM32 system memory boot modes

STMicroelectronics

Why people recommend it

An official ST explanation of how the boot pins choose the memory an STM32 starts from, useful for closing knowledge gaps and consulted when flashing without a debugger.

Watch for: Check pin details against the datasheet, as some ST parts lack BOOT1

In their words

I watched this video where ST itself states that BOOT0 and BOOT1 pins are used to select the memmory that MCU starts reading after the boot :

71GA on electronics.stackexchange.com, Mar 2021. CC BY-SA.

Found this video by ST which helped fill in understanding gaps link

jlaufer on electronics.stackexchange.com, Feb 2025. CC BY-SA.

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