If you don't need instant response to the button press, you can get away with not using interrupts.
Just test the appropriate interrupt flag bit when you want to know if the button was pressed.
Remeber to clear the bit after checking it.
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If you don't need instant response to the button press, you can get away with not using interrupts.
Just test the appropriate interrupt flag bit when you want to know if the button was pressed.
Remeber to clear the bit after checking it.
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