Thingy 91 ADXL372 error: static assertion failed:

Question

Hello. I am working with the Thingy 91. On the nRF52840 I have the connectivity bridge application running so I can see print messages from the nRF9160.

On the nRF9160 side, my goal is to simply collect accelerometer sensor data. I have looked at the thingy91_nrf9160_common.dts I see the following declared:

&spi3 {
	compatible = "nordic,nrf-spim";
	status = "okay";
	cs-gpios = <&gpio0 8 GPIO_ACTIVE_LOW>, <&gpio0 7 GPIO_ACTIVE_LOW>;

	pinctrl-0 = <&spi3_default>;
	pinctrl-1 = <&spi3_sleep>;
	pinctrl-names = "default", "sleep";
	adxl362: adxl362@0 {
		compatible = "adi,adxl362";
		spi-max-frequency = <8000000>;
		reg = <0>;
		int1-gpios = <&gpio0 9 0>;
	};

	adxl372: adxl372@1 {
		compatible = "adi,adxl372";
		spi-max-frequency = <8000000>;
		reg = <1>;
		int1-gpios = <&gpio0 6 0>;
	};
};

And in my code, I have the following:

#include <stdio.h>
#include <stdlib.h>
#include <zephyr/kernel.h>
#include <zephyr/drivers/spi.h>
#include <zephyr/drivers/sensor.h>
#include <zephyr/device.h>


#define DEFAULT_ACCL_NODE DT_ALIAS(adxl372)
BUILD_ASSERT(DT_NODE_HAS_STATUS(DEFAULT_ACCL_NODE, okay),
	     "ADXL372 not specified in DT");

#define DEFAULT_ACCL_NODE DT_ALIAS(adxl362)
BUILD_ASSERT(DT_NODE_HAS_STATUS(DEFAULT_ACCL_NODE, okay),
	     "ADXL362 not specified in DT");


int main(void)
{
	while(1){
		printk("Hello World\n");
		k_msleep(1000);
	}
}

As you can see from above, I just want to perform static assertion to check if adxl372 and adxl362 is declared in device tree.

When I try to build my project, I am getting the following error:

C:\Users\petrikas.lu\Desktop\WORK\NRF\Thingy_91\external\zephyr\include\zephyr\toolchain\gcc.h:81:36: error: static assertion failed: "ADXL372 not specified in DT"
   81 | #define BUILD_ASSERT(EXPR, MSG...) _Static_assert(EXPR, "" MSG)
      |                                    ^~~~~~~~~~~~~~
c:\Users\petrikas.lu\Desktop\WORK\NRF\Thingy_91\app_nrf9160\src\main.c:19:1: note: in expansion of macro 'BUILD_ASSERT'
   19 | BUILD_ASSERT(DT_NODE_HAS_STATUS(DEFAULT_ACCL_NODE, okay),
      | ^~~~~~~~~~~~
c:\Users\petrikas.lu\Desktop\WORK\NRF\Thingy_91\app_nrf9160\src\main.c:22: warning: "DEFAULT_ACCL_NODE" redefined
   22 | #define DEFAULT_ACCL_NODE DT_ALIAS(adxl362)
      | 
c:\Users\petrikas.lu\Desktop\WORK\NRF\Thingy_91\app_nrf9160\src\main.c:18: note: this is the location of the previous definition
   18 | #define DEFAULT_ACCL_NODE DT_ALIAS(adxl372)
      | 
C:\Users\petrikas.lu\Desktop\WORK\NRF\Thingy_91\external\zephyr\include\zephyr\toolchain\gcc.h:81:36: error: static assertion failed: "ADXL362 not specified in DT"
   81 | #define BUILD_ASSERT(EXPR, MSG...) _Static_assert(EXPR, "" MSG)
      |                                    ^~~~~~~~~~~~~~
c:\Users\petrikas.lu\Desktop\WORK\NRF\Thingy_91\app_nrf9160\src\main.c:23:1: note: in expansion of macro 'BUILD_ASSERT'
   23 | BUILD_ASSERT(DT_NODE_HAS_STATUS(DEFAULT_ACCL_NODE, okay),
      | ^~~~~~~~~~~~

I cannot wrap my head around this issue. I am sure it is something very simple I just cant seem to notice it! Why would it not pass the static assertion if it is declared in the device tree?

zazas321 · Accepted Answer

UPDATE 
 
 I have figured out what was the issue. The 
 
 # define DEFAULT_ACCL_NODE DT_ALIAS (adxl372) 
 requires an alias to be setup in the device tree. 
 
 After adding the following lines in my board overlay: 
 / {
 aliases {
 adxl372 = &adxl372;
 };
}; 
 
 It worked like expected

Thingy 91 ADXL372 error: static assertion failed:

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