BME280 code update with nRF9160

[AMG]

Hi,

I have a BME280 sensor running normally with the nRF9160 on v1.2.0 firmware. When I updated the firmware to 1.3.1, I had to update the code to run I updated the files but still getting errors is there any updated version. zephyr v2.3. The code is running on v1.2.0 and zephyr v2.1.

[136/155] Building C object zephyr/drivers/sensor/bme280/CMakeFiles/drivers__sensor__bme280.dir/bme280.c.obj
/home/am/nrfmix/zephyr/drivers/sensor/bme280/bme280.c:31:2: warning: #warning "BME280 driver enabled without any devices" [-Wcpp]
 #warning "BME280 driver enabled without any devices"
  ^~~~~~~
/home/am/nrfmix/zephyr/drivers/sensor/bme280/bme280.c:397:39: warning: 'bme280_api_funcs' defined but not used [-Wunused-const-variable=]
 static const struct sensor_driver_api bme280_api_funcs = {
                                       ^~~~~~~~~~~~~~~~
[148/155] Linking C executable zephyr/zephyr_prebuilt.elf
Memory region         Used Size  Region Size  %age Used
           FLASH:       20440 B       976 KB      2.05%
            SRAM:        4128 B       128 KB      3.15%
        IDT_LIST:          72 B         2 KB      3.52%
[155/155] Generating zephyr/merged_domains.hex

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

void main(void)
{
	struct device *dev = device_get_binding("BME280");

	if (dev == NULL) {
		printk("Could not get BME280 device\n");
		return;
	}

	printk("dev %p name %s\n", dev, dev->config->name);

	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));
	}
}

&i2c3 {
    compatible = "nordic,nrf-twim";
    status = "ok";
    sda-pin = <30>;
    scl-pin = <31>;
    clock-frequency = <I2C_BITRATE_FAST>;
    bme280@76 {
        compatible = "bosch,bme280";
        reg = <0x76>;
        label = "BME280";
    };
};

CONFIG_STDOUT_CONSOLE=y
CONFIG_I2C=y
CONFIG_SENSOR=y
CONFIG_BME280=y
CONFIG_I2C_3=y
CONFIG_SENSOR_LOG_LEVEL_DBG=y
CONFIG_LOG_IMMEDIATE=y
CONFIG_LOG=y

[Øyvind]

Hello, 

Comparing your code to the BME280 sensor sample in Zephyr, I see that you do not have the following configuration:

#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

Please look at the sample and make sure to add the same. 

Kind regards,
Øyvind

[AMG]

@Oyvind adding this config will cause more errors. The code doesn't run in the more advanced firmware version. That's why I altered the code. If you can run the code. please provide the firmware version since it only run on v1.20.

 

[Øyvind]

Can you please provide the errors you are seeing? Difficult for me to determine what's going on.

[AMG]

FAILED: CMakeFiles/app.dir/src/main.c.obj 
ccache /opt/gnuarmemb/bin/arm-none-eabi-gcc -DBUILD_VERSION=v2.3.0-rc1-ncs2 -DEXT_API_MAGIC=0x281ee6de,0xb845acea,23298 -DFIRMWARE_INFO_MAGIC=0x281ee6de,0x8fcebb4c,23298 -DKERNEL -DNRF9160_XXAA -DNRF_TRUSTZONE_NONSECURE -DUSE_PARTITION_MANAGER=1 -D_FORTIFY_SOURCE=2 -D__PROGRAM_START -D__ZEPHYR__=1 -I/home/am/nrfmix/zephyr/include -Izephyr/include/generated -I/home/am/nrfmix/zephyr/soc/arm/nordic_nrf/nrf91 -I/home/am/nrfmix/nrf/include -I/home/am/nrfmix/modules/hal/cmsis/CMSIS/Core/Include -I/home/am/nrfmix/modules/hal/nordic/nrfx -I/home/am/nrfmix/modules/hal/nordic/nrfx/drivers/include -I/home/am/nrfmix/modules/hal/nordic/nrfx/mdk -I/home/am/nrfmix/modules/hal/nordic/. -isystem /home/am/nrfmix/zephyr/lib/libc/minimal/include -isystem /opt/gnuarmemb/bin/../lib/gcc/arm-none-eabi/8.3.1/include -isystem /opt/gnuarmemb/bin/../lib/gcc/arm-none-eabi/8.3.1/include-fixed -Os -imacros/home/am/nrfmix/zephyr/samples/sensor/bme280/build/zephyr/include/generated/autoconf.h -ffreestanding -fno-common -g -mcpu=cortex-m33 -mthumb -mabi=aapcs -imacros/home/am/nrfmix/zephyr/include/toolchain/zephyr_stdint.h -Wall -Wformat -Wformat-security -Wno-format-zero-length -Wno-main -Wno-pointer-sign -Wpointer-arith -Wno-unused-but-set-variable -Werror=implicit-int -fno-asynchronous-unwind-tables -fno-pie -fno-pic -fno-strict-overflow -fno-reorder-functions -fno-defer-pop -fmacro-prefix-map=/home/am/nrfmix/zephyr/samples/sensor/bme280=CMAKE_SOURCE_DIR -fmacro-prefix-map=/home/am/nrfmix/zephyr=ZEPHYR_BASE -fmacro-prefix-map=/home/am/nrfmix=WEST_TOPDIR -ffunction-sections -fdata-sections -std=c99 -nostdinc -MD -MT CMakeFiles/app.dir/src/main.c.obj -MF CMakeFiles/app.dir/src/main.c.obj.d -o CMakeFiles/app.dir/src/main.c.obj   -c ../src/main.c
../src/main.c:17:2: error: #error Your devicetree has no enabled nodes with compatible "bosch,bme280"
 #error Your devicetree has no enabled nodes with compatible "bosch,bme280"
  ^~~~~
ninja: build stopped: subcommand failed.

[Øyvind]

I'm a little confused. What version of NCS are you working on? NCS 1.2.0 or NCS 1.3.1? Are you able to run an unaltered version of the v1.3.1 sample?

The error clearly states "Your devicetree has no enabled nodes with compatible "bosch,bme280". From the part I posted in my first comment:

#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

The Devicetree is used to define the hardware descriptions in which the Zephyr OS obtains HW information.

In NCS 1.3.0, there were several new features introduces (See NCS 1.3.0 release notes), one being (under Zephyr):
"Updated all files to use the C/C++ Devicetree generic API, because the C/C++ Devicetree value fetching API was reworked in Zephyr so that it uses compatible strings and new function-like macros to match properties. See Devicetree access from C/C++."

In the error you posted last, your GCC is seemingly building for NCS 1.3.1 (ref -DBUILD_VERSION=v2.3.0-rc1-ncs2). 

[AMG]

The code in the first comment runs on the v1.2.0. I am struggling with getting the code to run on v1.3.1. Will have a look. thanks for the help.

[Øyvind]

I see one of my sentences were cut short in my last reply. 

AMG said:

The code in the first comment runs on the v1.2.0. I am struggling with getting the code to run on v1.3.1.

Then I recommend looking at the NCS 1.3.1 sample in order to get it running. Devicetree / DTS plays a big part in getting HW running correctly in NCS. 

Let me know how it works for you.

Kind regards,
Øyvind 

[AMG]

Major changes need to be done to run the code on *** Booting Zephyr OS build v2.3.0-rc1-ncs2 *** it runs on *** Booting Zephyr OS build v2.1.99-ncs1 *** without any problems. The tutorial from nordic is for the v2.1.99  https://devzone.nordicsemi.com/nordic/b/archives/posts/nrf-connect-sdk-tutorial---part-3-ncs-v1-3-0#h79sk0f70607qwcyitkx2xn61bmh9mo. most of the header files to be changed.