This video will describe how to upload and run Micro-python on the STM32F4 Discovery board.
STM32 Bootloader video:
https://youtu.be/K2NekHIwGWo
Discovery Board:
https://www.digikey.com/product-detail/en/stmicroelectronics/STM32F407G-DISC1/497-16287-ND/5824404