npm1300-EK entering/using ship mode

I have a npm1300-EK connected to nrf52832dk.

Power connected from npm1300 Buck2 3v to external supply nrf52.

  1. nrf52 is not usb connected.
  2. TWI connected to nrf52 P0.26,27
  3. USB PMIC is not connected.

I flashed "NPM1300_FUEL_GAUGUE" with the addition of "ret = gpio_pin_set_dt(&led, 1);" just to show the nrf52 is running

everything works as expected, except that when I push/push hold "SHPHLD" nothing happens. I was hoping/expecting SHPHLD to Power Down and/or Reset.

Are there a steps I can follow to get SHPHLD set up so that I can use the SHPHLD button to be a Power ON/OFF, (nrf52 hard reset)?

I attached my firmware.

  npm1300_fuel_gauge.zip

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