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Which pins are usable on the F429 Discovery (DISC1) board?

Question asked by Lars Beiderbecke on Dec 31, 2017
Latest reply on Jan 1, 2018 by Bogdan Golab

I'm using the STM32F429 Discovery Board. Comparing to the Nucleos, most pins seem to be used by peripherals.


I disabled those peripherals I don't need (e.g., LCD, USART, ...) to free some pins, but I found some pins (e.g., PB13) are still used by some peripheral (i.e., they interfere with my logic), although they show as free in CubeMX.


Is there a list of pins that are reserved for the board itself even when all peripherals are disabled?  I know about LEDs and button, but what about ST Link and others?


There is some official diagram of both pin headers which categorizes all pins into "without conflict" and "connected to other components" (DISCO-F429ZI | Mbed ). I don't understand this list. Is this the answer to my question, or are they talking about conflicts between two or more peripherals (of which some are not shown in the diagram)?