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Using on board switch on Xpresso V2 board for LPC11U37H

Question asked by Ojas Kulkarni on Oct 27, 2016



I am using NXP Xpresso V2 board for LPC11U37H. I am trying to blink on board LED's by reading SW1 and SW2. To sense SW1 and SW2, I am using  API library functions, Board_Buttons_Init(), ButtonsGetStatus().

With this I am able to sense SW2 properly but SW1 is always pressed detected. My question is, because SW1 is connected to WAKEUP pin and supplying external voltage, do I need to initialize this GPIO in different manner as of GPIO of SW2 ? Is this triggering SW1 to detect always pressed?

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