medium10 pts · first answer countsgpiointerrupts

One press, many events

Pressing a button once triggers the interrupt 5 to 10 times. What is the cause and a good firmware fix?

A.Contact bounce; ignore further edges for about 10 to 50 ms or sample the pin periodically and require a stable stateB.The CPU is too fast; reduce the clock speedC.The interrupt priority is too lowD.The GPIO pin is broken and must be replaced

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One press, many events

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