B4J Question StateChange not work (Raspberry 3 compute module)

[micro]

Hi to all
With latest jPi4J the Sub pin_StateChange it's never raised.
If i cech with a timer periodically the state of the same pin and log state this is correctly read (false o true)
Why?
Tanks

 

[Erel]

Can you post your code?

 

[micro]

Can you post your code?

Simply

Private IOc As GpioController
Private O1, O2, O3, O4, O5 As GpioPinDigitalInput
..........
..........
IOc.Initialize
O1.Initialize("O1", 18)
...........
...........
Sub O1_StateChange(State As Boolean)
      If State = False Then Update
End Sub

O1_StateChange it's never raised

 

[Erel]

Add Log("state: " & state) in this event.

Are you sure that you are checking the correct pin?

The pins diagram for RPi 1 CM is available here: http://pi4j.com/pins/model-cm-rev1.html
I'm not sure whether it is the same as RPi 3 CM.

 

[micro]

Add Log("state: " & state) in this event.

I have added a breakpoint in StateChange but never raised

Are you sure that you are checking the correct pin?

Yes, because with Log(O1.State) into a Timer_Tick sub is printed the correct value

 

[micro]

The pinout the ComfilePI (personalized hardaware) is equal to Raspy 3 (rename GPIO name).
The GPIO18 corrrespondes to GPIO1
If i use 18 as pin the state is properly read but the StateChange not work, while if i use 1 as pin
work also StateChange.
Why?
It's strange.

 

[Erel]

I think that the state changed listeners are based on hardware interrupts (it is implemented inside Pi4J library). Maybe this pin doesn't support this feature.