WHAT EXACTLY IS THE PURPOSE OF PPI. IF I AM GENERATING A PWM SIGNAL IN PIN NO 21 AND USING A WIRE I CONNECTED TO PIN NO :24(BOTH GPIOS) IN NRF51422 BOARD AND WANT TO COUNT THE NUMBER OF PULSES FROM PIN NO:24 DO I NEED PPI?
This question is the same as you have asked here. Please keep similar questions in one thread.