The routine below demos an appearent bug in the Mega1280 IRQs 2-5. The routine triggers each IRQ on the Mega1280 with a digitalwrite to a trigger pin wired to the IRQ pin. After the second IRQ is triggered, the remainder will be triggered by digitalwrites to another pin, not the one wired to the IRQ…

An appearent bug in the Mega1280 IRQs 2-5

system May 17, 2011, 8:44pm 4

The bug might be in the attachInterrupt code....
As everything is non atomic in the Arduino core, nothing, so it is very very prone to errors.

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