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]

Hello,

Thank you for the detailed description.

I found a thing or two that might be causing this. I am trying to reproduce the error and will get back to you shortly.

Regards,

Håkon

[Rihab]

Hello Hakon,
i figured out the problem of flashing 
it's related to the nrfjprog which was causing a problem
and i succeeded to flash my NRF5340 and communicate with the NRF connect 
but now i'm having a little problem simpler then all of this 
i m trying to communicate with BME280 but everytime i'm getting 

*** Booting Zephyr OS build v2.4.99-ncs2 ***
No device "BME280" found; did initialization fail?

which is related to the main.c on the bme280 related to zephyr projects 

/*
 * 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));
	}
}

so the ponter is blocked on Null 
 do you have a suggestion on how to fix it 
or do you recommend something to replace it with 

[helsing]

Could you please try the following for your I2C pins in the overlay?

    sda-pin = < 34 >; //(32+2)

    scl-pin = < 35 >; //(32+3)

Let me know how it goes, as I have not yet tested this myself.

[helsing]

I see that the error occurs after the overlay file, nrf5340dk_nrf5340_cpuapp.overlay, has been processed(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"

If you check the build folder and open the file nrf5340dk_nrf5340_cpuapp.dts.pre.tmp and scroll down to line 698 you should find the syntax error causing this message.

[Rihab]

i changed the pins numbers and i tried again always the same output 

" *** Booting Zephyr OS build v2.4.99-ncs2 ***
No device "BME280" found; did initialization fail? "

and the line 698 in the nrf5340dk_nrf5340_cpuapp.dts.pre.tmp is the line 8 below and so on 
i think it's blocked on pins level 
i don't know what can be causing this output ?? 

*
*
*
*
&i2c1 {
    compatible = "nordic,nrf-twim";
 status = "okay";
 sda-pin = < 34 >;
 scl-pin = < 35 >;
    clock-frequency = <100000>;
 bme280@76 {
  compatible = "bosch,bme280";
  reg = <0x76>;
  label = "BME280";
 };
};
&uart1 {
    status = "disabled";
};