I'm using a polling loop to wait for a pulse from an external system that lasts 1-2 us. There's a good 5000us between pulses. I'm polling rather than interrupting because I need to get the data in very quickly. The following logic woks if I disable interrupts: noInterrupts(); while(true){ //l…

Polling for an external pulse - logic question

CrossRoads April 29, 2012, 6:20am 10

Can that be worked around somehow?
Or is the solution to use PCINTs on the hardware interrupt lines?

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