easy5 pts · first answer countsfirmwaregpiohardware-debugging

One press, many interrupts

A single press of a mechanical button triggers the GPIO interrupt 3–8 times. What is happening?

A.The GPIO pin is set to the wrong output drive strengthB.The interrupt flag is cleared too early by the hardwareC.The MCU core clock is too fast for mechanical inputsD.Contact bounce makes several edges; it needs debouncing

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One press, many interrupts

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