Hello, I am making a customized PCB using STM32F407VGT6 . Can you send any reference document to start with?

[GPani.2]

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[KnarfB]

Check AN4488: Getting started with STM32F4xxxx MCU hardware development.

You should also have an idea how to program/debug your board AN4989: STM32 microcontroller debug toolbox.

hth

KnarfB

[GPani.2]

Thanks.