Is it possible to create a GPIO button interrupt without GPIOTE?

[Scarlet]

Hello I'm using nrf51822 EK board. This is my first time to develop application in ARM system. I want to develop a ble application. This application can be shut down (system off) by pressing the button for 5 seconds.

Since I read this " devzone.nordicsemi.com/.../power-use-with-gpiote-is-too-high " The power source in our application is coin battery, it is important to reduce our power consumption.

Is this possible to create any method to "callback/interrupt" a specific function while the button is pressed without GPIOTE?

Thanks!!:)

[Ole Morten]

You should use the PORT event to trigger a pin interrupt without increasing the current consumption.

You can refer to the GPIO projects available here for an example of how this can be used, specifically this main.c file.

[Scarlet]

Thanks Ole I will try it!