SDK 2.2 + "__device_dts_ord_XX" errors

Question

Hi community,

I try to acces gpio0 and adc channels on a icarus board (nRF9160 + SDK 2.2).

On building, i have these errors "__device_dts_ord_94", "__device_dts_ord_95" and "__device_dts_ord_4".

DEVICE_DT_GET seems not accepted.

Any idea to solve this ?
Many thanks !

#define GPIO_NODE DT_NODELABEL(gpio0)
#define ADC_0 DT_CHILD(DT_NODELABEL(adc), channel_0)
#define ADC_5 DT_CHILD(DT_NODELABEL(adc), channel_5)

static const struct device *adc0;
static const struct device *adc5;
static const struct device *gpio;

adc0 = DEVICE_DT_GET(ADC_0);
adc5 = DEVICE_DT_GET(ADC_5);	
gpio = DEVICE_DT_GET(GPIO_NODE);

and overlay

&adc {
	#address-cells = <1>;
	#size-cells = <0>;
	
	channel@0 {
		reg = <0>;
		zephyr,gain = "ADC_GAIN_1_6";
		zephyr,reference = "ADC_REF_INTERNAL";
		zephyr,acquisition-time = <ADC_ACQ_TIME(ADC_ACQ_TIME_MICROSECONDS, 20)>;
		zephyr,input-positive = <NRF_SAADC_AIN0>;
		zephyr,resolution = < 10 >;
	};

	channel@5 {
		reg = <5>;
		zephyr,gain = "ADC_GAIN_1_6";
		zephyr,reference = "ADC_REF_INTERNAL";
		zephyr,acquisition-time = <ADC_ACQ_TIME(ADC_ACQ_TIME_MICROSECONDS, 20)>;
		zephyr,input-positive = <NRF_SAADC_AIN5>;
		zephyr,resolution = < 10 >;
	};
};

Einarh · Accepted Answer

It seems like it's difficult accessing the adc channel subnodes using the DEVICE_DT_GET macro.

I was able to compile when I exchanged DEVICE_DT_GET with ADC_DT_SPEC_GET_BY_IDX,

and adc_channel_setup with adc_channel_setup_dt.

My main.c now looks like this:

#include <zephyr/kernel.h>				// Noyau
#include <zephyr/device.h>
#include <zephyr/drivers/adc.h>			// ADC
#include <zephyr/drivers/gpio.h>		// GPIO
#include <stdio.h>						// Calcul
#include <zephyr/sys/printk.h>			// Affichage
#include <zephyr/logging/log.h>			// Logging

LOG_MODULE_REGISTER(main);

#define GPIO_NODE DT_NODELABEL(gpio0)

static const struct adc_dt_spec adc_chan0 = ADC_DT_SPEC_GET_BY_IDX(DT_PATH(zephyr_user),0);
static const struct adc_dt_spec adc_chan5 = ADC_DT_SPEC_GET_BY_IDX(DT_PATH(zephyr_user),1);
static const struct device *gpio_dev;

bool init_adc_0() {
	int err;

	err = adc_channel_setup_dt(&adc_chan0);
	if (err) {
		return false;
	}
	return true;
}

bool init_adc_5() {
	int err;

	err = adc_channel_setup_dt(&adc_chan5);
	if (err) {
		return false;
	}
	return true;
}

bool init_gpio() {
	gpio_dev = DEVICE_DT_GET(GPIO_NODE);

	if (!device_is_ready(gpio_dev)) {
		return false;
	};
	return true;
}

int main(void)
{
	init_gpio();
	init_adc_0();
	init_adc_5();

    return true;
}

And I also had to add this to the overlay:

/ {
	zephyr,user {
		io-channels = <&adc 0>, <&adc 5>;
	};
};

-Einar

SDK 2.2 + "__device_dts_ord_XX" errors

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