10k resistor (R3) between PB2 and GND

WeActStudio / WeActStudio.MiniSTM32F4x1

MiniF4-STM32F401CEU6/STM32F411CEU6 Product Literature

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Open dikdom opened 2 years ago

dikdom commented 2 years ago

On Blackpill, STM32F4x1. Why is it needed?

fivdi commented 2 years ago

PB2 is the BOOT1 pin. For further information see the "Boot configuration" section of the reference manual.