SDK 2.2 + "__device_dts_ord_XX" errors

[Alskandar]

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]

Hello

Could you please share the adc node in your generated device tree in build/zephyr/zephyr.dts?

You'll need to add a "compatible" property if it isn't already defined.

I also suspect you might have to add

#address-cells = <1>;
#size-cells = <0>;

to your overlay if you define reg as simply <5>.

Best regards,

Einar

[Alskandar]

The adc node

adc: feather_adc: arduino_adc: adc@e000 {
				compatible = "nordic,nrf-saadc";
				reg = < 0xe000 0x1000 >;
				interrupts = < 0xe 0x1 >;
				status = "okay";
				#io-channel-cells = < 0x1 >;
				#address-cells = < 0x1 >;
				#size-cells = < 0x0 >;
				phandle = < 0x10 >;
				channel@0 {
					reg = < 0x0 >;
					zephyr,gain = "ADC_GAIN_1_6";
					zephyr,reference = "ADC_REF_INTERNAL";
					zephyr,acquisition-time = < 0x4014 >;
					zephyr,input-positive = < 0x1 >;
					zephyr,resolution = < 0xa >;
				};
				channel@5 {
					reg = < 0x5 >;
					zephyr,gain = "ADC_GAIN_1_6";
					zephyr,reference = "ADC_REF_INTERNAL";
					zephyr,acquisition-time = < 0x4014 >;
					zephyr,input-positive = < 0x6 >;
					zephyr,resolution = < 0xa >;
				};
			};

the gpio node

gpio0: gpio@842500 {
				compatible = "nordic,nrf-gpio";
				gpio-controller;
				reg = < 0x842500 0x300 >;
				#gpio-cells = < 0x2 >;
				status = "okay";
				port = < 0x0 >;
				phandle = < 0xa >;
			};

[Alskandar]

Hi,

With nRF Connect yes, and no change except copy board files for 2.2 version (no impact, i think).

Board files for Actinius Icarus

[Einarh]

Thanks, that did have an impact, I now get the same error as you.

I'll try to see if I can figure out what's causing your device_dts_ord error then.

-Einar

[Alskandar]

Damned, sorry i wasn't thinking

Thanks for helping

[Einarh]

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

[Alskandar]

Yes, thanks, but then how i can use functions like 

adc_ref_internal or adc_read ?

They need "const struct device *dev" as 1st parameter

I have not seen adc_read_dt or adc_ref_internal_dt...

[Einarh]

The device structure is actually part of adc_dt_spec.

So you should be able to for example use adc_chan0.dev as the dev parameter for adc_read.

-Einar

[Alskandar]

yes, thanks you !

i find an other solution with your help:

instead DT_CHILD(DT_NODELABEL(adc), channel_0)

directly DEVICE_DT_GET(DT_IO_CHANNELS_CTLR_BY_IDX(DT_PATH(zephyr_user),0))

Ours two solutions still keep errors of type '_device_dts_ord_12' but build and works.

[Einarh]

Alskandar said:

instead DT_CHILD(DT_NODELABEL(adc), channel_0)

directly DEVICE_DT_GET(DT_IO_CHANNELS_CTLR_BY_IDX(DT_PATH(zephyr_user),0))

Yes I guess that works too, as long as you run adc_channel_setup.

Alskandar said:

Ours two solutions still keep errors of type '_device_dts_ord_12' but build and works.

What do you mean by this exactly?

I'm not seeing any errors when I build.

-Einar

[Alskandar]

This is an error of IntelliSense.

If i modify includePath, librairies are found but i have _device_dts_ord erros

If not, it not found librairies but i haven't errors like _device_dts_ord.

In both case, program is built and works.

This a VSCode problem.

[Einarh]

Alskandar said:

If i modify includePath, librairies are found but i have _device_dts_ord erros

How and why are you modifying includePath?

I'm not doing this and the program builds without errors.

-Einar