OK I have a Cerberus and someone has kindly put a button on the boot pin, (old board had just the pads).
SO how can I access this button during normal execution. It seems a shame to waste a perfectly good button.
Actually I plan to use it to trigger an sd unmounts coz im fed up of corrupting the cards the brutal way.
looking at the schematic, this pin is tied low and pulls BOOT0 high on push, so I guess the question is can we access the BOOT0 pin as a gpio?
Looking at the processor datasheet - it looks like BOOT0 is a dedicated pin, and cant be used after reset - such is life