Watson91:
As to the reason I have the code set up to AvgRPM * 10 * 60 / 2. With a pulse at 60Hz, I should receive 6 falling edges every 10ms. If so my AvgRPM = 6. 6 * 10 * 60 / 2 = 1800 RPM which if I'm correct should be the RPM of a 60Hz frequency. Please correct me if I am approaching this the wrong way.
A 60 Hz pulse corresponds to how many rpm?
60 pulses per second equals 3600 pulses per minute. If you are counting ignition pulses on one cylinder of a four-stroke engine you will get one pulse every two revolutions so that corresponds to 7200 rpm. Am I misunderstanding your setup?