I was having a problem testing interrupts on a DUE. It seemed to me that the ISR routine, where a flag was being set, was being called when there was no interrupt. The interrupt pin was an alarm wake up from an RTC. Mr Google found this; [image] Arduino Due and attachInterrupt Ar…

Interrupts on DUE. Odd behaviour of attachinterrupt()

system Closed May 1, 2022, 12:50pm 16

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