Ricky Lopez d306798923 Add STM32F4 support
Specifically, the STM32F407VE.
Even more specifically, [this](https://stm32-base.org/boards/STM32F407VET6-STM32-F4VE-V2.0.html) dev board
2022-01-06 12:31:05 -05:00
..
2022-01-06 12:31:05 -05:00