nrf9160dk_nrf9160_ns SPI bus not active on pinout

Question

Im trying to make a simpel project reading the sensor BME280 over SPI.
I can´t get any activity on the SPI pins when i check with my logic analyzer.

I´m using nrf9160-DK v 0.9.0 SDK v 1.7.1

# Copyright (c) 2020, Nordic Semiconductor ASA
# SPDX-License-Identifier: Apache-2.0

config LOG
	default y

config LOG_PRINTK
	default y

config SENSOR_LOG_LEVEL
	default 4

# Enable SPI and I2C support by default so that the sample works with
# the device connected either way. These defaults can be overridden if
# needed.
config SPI
	default y

config I2C
	default y

source "Kconfig.zephyr"

Kconfig

CONFIG_SPI=y
CONFIG_I2C=n
CONFIG_SENSOR=y
CONFIG_BME280=y

prj.conf

/* Example configuration of a BME280 device on an Arduino SPI bus. */


&spi3 {
    status = "okay";
    sck-pin = <10>;
    mosi-pin = <11>;
    miso-pin = <12>;
    cs-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
  
    bme280@0 {
      compatible = "bosch,bme280";
      reg = <0x00>;
      //reg = <0x76>;
      spi-max-frequency = <4000000>;
      label = "BME280";
    };
  };
  
  &uart3 {
    status = "disabled";
  };

nrf9160dk_nrf9160_ns.overlay

/*
 * Copyright (c) 2012-2014 Wind River Systems, Inc.
 * Copyright (c) 2021 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: Apache-2.0
 */

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

/*
 * Get a device structure from a devicetree node with compatible
 * "bosch,bme280". (If there are multiple, just pick one.)
 */
static const struct device *get_bme280_device(void)
{
	const struct device *dev = DEVICE_DT_GET_ANY(bosch_bme280);

	if (dev == NULL) {
		/* No such node, or the node does not have status "okay". */
		printk("\nError: no device found.\n");
		return NULL;
	}

	if (!device_is_ready(dev)) {
		printk("\nError: Device \"%s\" is not ready; "
		       "check the driver initialization logs for errors.\n",
		       dev->name);
		return NULL;
	}

	printk("Found device \"%s\", getting sensor data\n", dev->name);
	return dev;
}

void main(void)
{
	const struct device *dev = get_bme280_device();

	if (dev == NULL) {
		return;
	}

	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));
	}
}

main.c

Albrecht Markus Schellenberger · Accepted Answer

Hello Tomas, 
 which value does the get_bme280_device function return? I assume that the sensor is connected to your DK according to the overlay file? 
 Regards, 
 Markus

nrf9160dk_nrf9160_ns SPI bus not active on pinout

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