I'm trying to connect the limit switch to my stm32f429 discovery board. the digital read function is not working. I didn't get the desired output instead all the signals are high in IDR. I don't know what I'm missing?. I watch some examples on the website most of them are using default user push button. is the no free i/o in stm32f429 discovery board?. I refer the user manual, based on the document there are no free i/o pins on this board.
could anyone give me any idea?
