NRF54L15-DK : ADC Threshold Event Configuration using LPCOMP and ANADETECT

[Pratik Panchal]

Hello Nordic Team,

I am currently working with the NRF54L15-DK. I have successfully configured the simple ADC on AIN4 (P1.11) and am able to read the raw sensor values.

Overlay : 

&adc {
	#address-cells = <1>;
	#size-cells = <0>;
	
	channel@4 {
		reg = <4>;
		zephyr,gain = "ADC_GAIN_1"; //"ADC_GAIN_1_4"
		zephyr,reference = "ADC_REF_INTERNAL";
		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
		zephyr,input-positive = <NRF_SAADC_AIN4>; /* P1.11 */
		zephyr,resolution = <12>;
		//zephyr,oversampling = <2>;
	};
};

However, I would like to understand how to configure and set an ADC threshold using the ANADETECT feature. Specifically, I want to know how to detect when the ADC value crosses a defined threshold, either up , down or cross  and how to receive an event when this occurs. Additionally, I would like guidance on configuring the LPCOMP for this purpose.

Please provide the necessary prj.conf settings, .overlay configuration, and a sample example to help me implement this functionality.

Thanks & Regards,
Pratik Panchal