DIGITAL_IO HW Signal Connection Issues

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I'm using DAVE4.1.4 and working on connecting several IOs to EVENT_DETECTORS

When using the HW Signal Connection dialog box, after selecting PIN for the source signal, I do not see the Event Detector APP in the pull down list.

Example is using the Relax Lite Kit where Button 1 and Button 2 are configured for pins 1.14 and 1.15 respectively.

Button_1 doesn't show the APP where Button 2 does.

Are there restriction that are not documented on which Pins can be used?
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HI,

Please refer to the reference manual of the XMC4500 device.
The inputs supported by the External Request Unit (ERU) are listed below. P1.15 is a supported input for the ERU.
P1.14 is not a supported input for the ERU and thus is not selectable in DAVE.

See picture below:
1757.attach

Regards,
Daryl
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