BME280 with NRF5340 display (T,P,H) problem

[Rihab]

Hello everybody,

I'm having a problem to display the temperature, pressure and humidity.

i followed this tutorial on a NRF5340 https://devzone.nordicsemi.com/nordic/b/archives/posts/nrf-connect-sdk-tutorial---part-3-temporary

in my case i'm using SES V5.34a avec NRF Connect v3.7.0 with NRF SDK V1.5.1

i'm working with BME280 adafruit! (3-5)voltage

below is my nrf5340dk_nrf5340_cpuapp.overlay

as the scl pin is on P1.03 and the sda is on P1.02

&i2c1 {
    compatible = "nordic,nrf-twim";
	status = "okay";
	sda-pin = < 34-32 >;
	scl-pin = < 34-31 >;
    clock-frequency = <100000>;  
	
	/* The I2C address could be one of two, here 0x76 is assumed */
	bme280@76 {
		compatible = "bosch,bme280";
		reg = <0x76>;
		label = "BME280";
	};
};

&uart1 {
    status = "disabled";
};

and my prj.conf is below

CONFIG_SENSOR=y
CONFIG_BME280=y
CONFIG_I2C_1=y

and for the main.c i useed the code linked on the nfr/samples/sensor/bme280

/*
 * Copyright (c) 2012-2014 Wind River Systems, Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <zephyr.h>
#include <device.h>
#include <devicetree.h>
#include <drivers/sensor.h>

#define BME280 DT_INST(0, bosch_bme280)

#if DT_NODE_HAS_STATUS(BME280, okay)
#define BME280_LABEL DT_LABEL(BME280)
#else
#error Your devicetree has no enabled nodes with compatible "bosch,bme280"
#define BME280_LABEL "<none>"
#endif

void main(void)
{
	const struct device *dev = device_get_binding(BME280_LABEL);

	if (dev == NULL) {
		printk("No device \"%s\" found; did initialization fail?\n",
		       BME280_LABEL);
		return;
	} else {
		printk("Found device \"%s\"\n", BME280_LABEL);
	}

	while (1) {
		struct sensor_value temp, press, humidity;

		sensor_sample_fetch(dev);
		sensor_channel_get(dev, SENSOR_CHAN_AMBIENT_TEMP, &temp);
		sensor_channel_get(dev, SENSOR_CHAN_PRESS, &press);
		sensor_channel_get(dev, SENSOR_CHAN_HUMIDITY, &humidity);

		printk("temp: %d.%06d; press: %d.%06d; humidity: %d.%06d\n",
		      temp.val1, temp.val2, press.val1, press.val2,
		      humidity.val1, humidity.val2);

		k_sleep(K_MSEC(1000));
	}
}

my build is going well on SES and it's successful but when i try west flash from bash or Cmd prompt i'm always getting errors 

C:\Users\rzaafouri\ncs\v1.5.1\nrf\samples\sensor\bme280>west flash
-- west flash: rebuilding
[0/1] Re-running CMake...
Including boilerplate (Zephyr base (cached)): C:/Users/rzaafouri/ncs/v1.5.1/zephyr/cmake/app/boilerplate.cmake
-- Application: C:/Users/rzaafouri/ncs/v1.5.1/nrf/samples/sensor/bme280
-- Using NCS Toolchain 1.6.0 for building. (C:/Users/rzaafouri/ncs/v1.6.0/toolchain/cmake)
-- Zephyr version: 2.4.99 (C:/Users/rzaafouri/ncs/v1.5.1/zephyr)
-- Found west (found suitable version "0.11.0", minimum required is "0.7.1")
-- Board: nrf5340dk_nrf5340_cpuapp
-- Cache files will be written to: C:/Users/rzaafouri/ncs/v1.5.1/zephyr/.cache
-- Found dtc: C:/Users/rzaafouri/ncs/v1.6.0/toolchain/opt/bin/dtc.exe (found suitable version "1.4.7", minimum required is "1.4.6")
-- Found toolchain: gnuarmemb (C:/Users/rzaafouri/ncs/v1.6.0/toolchain/opt)
-- Found BOARD.dts: C:/Users/rzaafouri/ncs/v1.5.1/zephyr/boards/arm/nrf5340dk_nrf5340/nrf5340dk_nrf5340_cpuapp.dts
-- Found devicetree overlay: C:/Users/rzaafouri/ncs/v1.5.1/nrf/samples/sensor/bme280/boards/nrf5340dk_nrf5340_cpuapp.overlay
Error: nrf5340dk_nrf5340_cpuapp.dts.pre.tmp:698.16-17 syntax error
FATAL ERROR: Unable to parse input tree
CMake Error at C:/Users/rzaafouri/ncs/v1.5.1/zephyr/cmake/dts.cmake:205 (message):
  command failed with return code: 1
Call Stack (most recent call first):
  C:/Users/rzaafouri/ncs/v1.5.1/zephyr/cmake/app/boilerplate.cmake:533 (include)
  C:/Users/rzaafouri/ncs/v1.5.1/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:24 (include)
  C:/Users/rzaafouri/ncs/v1.5.1/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:40 (include_boilerplate)
  CMakeLists.txt:4 (find_package)


-- Configuring incomplete, errors occurred!
See also "C:/Users/rzaafouri/ncs/v1.5.1/nrf/samples/sensor/bme280/build/CMakeFiles/CMakeOutput.log".
See also "C:/Users/rzaafouri/ncs/v1.5.1/nrf/samples/sensor/bme280/build/CMakeFiles/CMakeError.log".
FAILED: build.ninja
C:\Users\rzaafouri\ncs\v1.5.1\toolchain\opt\bin\cmake.exe --regenerate-during-build -SC:\Users\rzaafouri\ncs\v1.5.1\nrf\samples\sensor\bme280 -BC:\Users\rzaafouri\ncs\v1.5.1\nrf\samples\sensor\bme280\build
ninja: error: rebuilding 'build.ninja': subcommand failed
FATAL ERROR: re-build in C:\Users\rzaafouri\ncs\v1.5.1\nrf\samples\sensor\bme280\build failed (no --build-dir given)

could you please help me solve my problem and be able to get returned values of my sensor bme280

or if you see that i have something wrong with my configuration, don't hesitate to tell . 
i will really appreciate your help and contribution 

thank you in advance

[helsing]

Hi Rihab,

What does your config file currently look like? Have you tried using these four configs at the same time?

CONFIG_SENSOR=y

CONFIG_BME280=y

CONFIG_I2C=y

CONFIG_I2C_1=y

When using these configs, I can read this in the terminal:

*** Booting Zephyr OS build v2.4.99-ncs2  ***

Found device "BME280"

This happens even though I do not have any sensor connected at the moment.

[Rihab]

for the moment my config looks just like this but i'm getting 
" *** Booting Zephyr OS build v2.4.99-ncs2 ***
No device "BME280" found; did initialization fail? "

[helsing]

I have a feeling that your overlay file is not working properly.

Also, I just noticed that four rows with '*' in the file nrf5340dk_nrf5340_cpuapp.dts.pre.tmp in your build folder.

Is this something you added? Or do you perhaps have some remains of old comments in your overlay file? Perhaps cleaning up the overlay file will work?

In your text editor, are you able to see these lines grayed out? If your device tree(and configs) is set up properly you should see something like the image below (This method might not be 100% accurate, though it could help indicate when something is wrong.)

[Rihab]

yes when my config was right i used to have the line just like the image you posted 
and speaking about my overlay file it looks just like this 

&i2c1 {
    compatible = "nordic,nrf-twim";
	status = "okay";
	sda-pin = < 34 >;
	scl-pin = < 35 >;
    clock-frequency = <100000>;  
	
	/* The I2C address could be one of two, here 0x76 is assumed */
	bme280@76 {
		compatible = "bosch,bme280";
		reg = <0x76>;
		label = "BME280";
	};
};

&uart1 {
    status = "disabled";
};

the stars i putted the when i posted my question to make it easy for you to stop the right line ( i said "the line 698 in the nrf5340dk_nrf5340_cpuapp.dts.pre.tmp is the line 8 below and so on")

so my overlay was good from the beginning