GPIO edge is falling, but received two times triger signals

We have an issue about gpio triger on nano.
we configure gpio edge is falling, but we can received two triger signals.
the first is 1 -> 0 and the second is from 0 -> 1.

we don’t know why we can received another triger signal when 0 - >1 ??
we measure it with scilloscope. we can received triger signal when the slope appears on the waveform. we also test it on the tx2, it is ok.


Would you please share how you configure GPIO trigger?
Have you tried another GPIO on Nano?

There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.

Hi leon.ha,

Have you clarified the cause and resolved the problem?
Any result can be shared?