1. Overview

This application note explains how to install the Zephyr images to the Emcraft Thingy-9151-Lite hardware platform (refer to Setting Up Thingy-9151-Lite Hardware Platform for a description of the hardware platform).

2. Obtaining Zephyr Images

The Zephyr images to be installed onto the Thingy-9151-Lite platform can be obtained using one of the two approaches, as follows:

1. Use the prebuilt images provided in Release Notes.

2. Build the images from the sources, as documented in Building Thingy-9151-Lite Software.

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3. Preparing Host

3.1. Installing nRF Util

1. Download and install the SEGGER J-Link Software from https://www.segger.com/downloads/jlink/:

   Code Block
   sudo dpkg -i JLink_Linux_V794e_x86_64.deb

2. Install the libusb-1.0 package:

   Code Block
   sudo apt install libusb-1.0-0

3. Download and install the nrf-udev package from https://github.com/NordicSemiconductor/nrf-udev/releases:

   Code Block
   sudo dpkg -i nrf-udev_1.0.1-all.deb

4. Download the latest nrfutil executable from https://www.nordicsemi.com/Products/Development-tools/nRF-Util, give it the execute permission, and move it to a folder that is in the system's PATH:

   Code Block
   chmod +x nrfutil sudo mv nrfutil /usr/local/bin

5. Install the nrfutill device command:

   Code Block
   nrfutil install device

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3.2. Identifying Nordic Devices on the Linux Host

1. Usenrfutil to list all connected development kits, their serial numbers and associated serial ports:

   Code Block
   $ nrfutil device list 1050021575 product J-Link board version PCA10095 ports /dev/ttyACM2, vcom: 0 /dev/ttyACM3, vcom: 1 traits devkit, jlink, seggerUsb, serialPorts, usb 1050931892 product J-Link board version PCA10153 ports /dev/ttyACM0, vcom: 0 /dev/ttyACM1, vcom: 1 traits boardController, devkit, jlink, modem, seggerUsb, serialPorts, usb Found 2 supported device(s)

2. Use nrfutil to identify the specific devices:

   Code Block

   $ nrfutil device device-info --serial-number 1050931892 serial_number: 001050931892 boardVersion: PCA10153 deviceFamily: NRF91_FAMILY deviceVersion: NRF9161_xxAA_REV3 jlinkObFirmwareVersion: J-Link OB-nRF5340-NordicSemi compiled Apr 11 2024 17:44:26 protectionStatus: NRFDL_PROTECTION_STATUS_NONE $ nrfutil device device-info --serial-number 1050021575 serial_number: 001050021575 boardVersion: PCA10095 deviceFamily: NRF53_FAMILY deviceVersion: NRF5340_xxAA_ENGD jlinkObFirmwareVersion: J-Link OB-nRF5340-NordicSemi compiled Apr 11 2024 17:44:26 protectionStatus: NRFDL_PROTECTION_STATUS_NONE

3. In this example, the nRF9161 serial number is 1050931892, and the nRF5340 serial number is 1050021575. They should be used to program the corresponding devices.

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4.

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Installing Zephyr Images

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4.1. Programming Thingy-9151-Lite Application to nRF9161

1. If needed, disable access protection on nRF9161:

   Code Block
   nrfutil device recover --serial-number <serial number>

2. Program the release image to nRF9161:

   Code Block
   nrfutil device program --serial-number <serial number> --firmware thingy9151lite_nrf9151_app_on_nrf9161dk_***_release.hex

3. Alternatively, program the application image from the build tree:

   Code Block
   nrfutil device program --serial-number <serial number> --firmware thingy9151lite_nrf9151_app/build/zephyr/merged.hex

4. Reset the board:

   Code Block
   nrfutil device reset --serial-number <serial number>

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4.2. Programming Thingy-9151-Lite Application to nRF5340 Application Core

1. If needed, disable access protection on the nRF5340 application core:

   Code Block
   nrfutil device recover --serial-number <serial number>

2. Program the release image to the nRF5340 application core:

   Code Block
   nrfutil device program --serial-number <serial number> --firmware thingy9151lite_nrf5340_cpuapp_app_on_nrf5340dk_***_release.hex

3. Alternatively, program the application image from the build tree:

   Code Block
   nrfutil device program --serial-number <serial number> --firmware thingy9151lite_nrf5340_cpuapp_app/build/zephyr/merged.hex

4. Reset the application core:

   Code Block
   nrfutil device reset --serial-number <serial number>

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4.3. Programming Thingy-9151-Lite Application to nRF5340 Network Core

1. If needed, disable access protection on the nRF5340 network core:

   Code Block
   nrfutil device recover --serial-number <serial number> --core Network

2. Program the release image to the nRF5340 network core:

   Code Block
   nrfutil device program --serial-number <serial number> --core Network --firmware thingy9151lite_nrf5340_cpunet_app_on_nrf5340dk_***_release.hex

3. Alternatively, program the application image from the build tree:

   Code Block
   nrfutil device program --serial-number <serial number> --core Network --firmware thingy9151lite_nrf5340_cpunet_app/build/zephyr/zephyr.hex

4. Reset the network core:

   Code Block
   nrfutil device reset --serial-number <serial number> --core Network

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