NRF54L15: Interruption on GPIO P2

[Elsys-Antoine]

Hello,

I'm working on a custom board with a nrf54l15 chip.

I would like to add an interruption on the GPIO P2.10. But I get an error -ENOTSUP with gpio_pin_interrupt_configure_dt().

The gpio is defined like this in the devicetree overlay;

	/* Battery charging signal P2.10 */
	batt_sig{
		compatible = "gpio-keys";
		battchrg: battchrg_sig{
			gpios = <&gpio2 10 GPIO_ACTIVE_LOW>;
			label = "Battery charging signal";
		};
	};

And I try to configure the interruption like this

#define BATTCHRG_NODE	 DT_NODELABEL(battchrg)

const struct gpio_dt_spec battcharg_sig = GPIO_DT_SPEC_GET(BATTCHRG_NODE, gpios);

gpio_init() {
	if (!device_is_ready(battcharg_sig.port)) {		LOG_ERR("Battery Charging signal port not ready");		return 1;	}

	ret = gpio_pin_interrupt_configure_dt(&battcharg_sig,GPIO_INT_EDGE_TO_ACTIVE);
}

ret value is now -ENOTSUP.

I have other interruption configuration like the one above on other GPIO port and that works perfectly fine.

Is the GPIO port 2 able to configure interruption ? In https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/gpio.html, it is said that every GPIO can "Trigger interrupt on state changes on any pin"

SDK: 2.8.0

Antoine

[Håkon Alseth]

Hi,

 

Unfortunately, port 2 does not have wakeup or GPIOTE capabilities:

https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/gpio.html#ariaid-title4

Is the GPIO port 2 able to configure interruption ? In https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/gpio.html, it is said that every GPIO can "Trigger interrupt on state changes on any pin"

I will report this back as a documentation bug. Thank you for making us aware of this!

 

Kind regards,

Håkon

[Elsys-Antoine]

Thank you for your answer