nRF5340 Audio DK - PLAY/PAUSE button not working

[cstjohn]

I have 3 development kits, two of them work fine with the Audio demo application and one does not: the PLAY/PAUSE button isn't doing anything.

I've probed around the switch and found that the North side of the button is floating, as is TP12. Since this is running identical firmware to another (working) dev kit I may well have a faulty chip.

Is there an easy way to test if the chip is faulty, like waggle the pin or report the digital voltage level?

Thanks,

Chris

[Priyanka]

Hi Christopher,

Sorry for the delayed response. Could you check the voltage level at TP12 after programming the board?

Both with the button pressed as well as released.

Best Regards,

Priyanka

[cstjohn]

Hi Priyanka,

Sorry only just getting back to this....

* Button released 0V @ TP12

* Button pressed 0V @TP12

I can also pull TP12 up to 1.8V via an external 1K resistor

* Button released 0A @ TP12

* Button pressed -1.8mA @ TP12

From this I deduce that the switch works and TP12 is floating....

Thanks,

Chris

[Priyanka]

Hi Chris,

Maybe you could try remapping the button to some other pin ?

Does this help?

-Priyanka