Our website is under construction. Please stay tuned!

Starting with SDK

This section offers comprehensive guidance on selecting and launching LEAPS example project, designed for the Zephyr RTOS platform. These examples facilitate a deeper understanding of UWB (Ultra-Wideband) technology and the UDK1 kit’s Hardware Interfaces.

Armed with this knowledge, users can confidently develop custom applications on the UDK1 kit.

The guidance follows these steps:

  1. Set up development environment for Zephyr RTOS on Linux, macOS, or Windows.

  2. Acquire the UDK1’s SDK which is Zephyr based example application package.

  3. Connecting devices to host PC and required tools.

  4. Select the example, build, flash, and run an example application.


Zephyr’s Getting Started Guide

Follow this guide to:

  • Set up a command-line Zephyr development environment on Ubuntu, macOS, or Windows (instructions for other Linux distributions are discussed in installation_linux)

  • Install the Zephyr’s SDK package (including required tool chains)

Select and Update OS

Click the operating system you are using.

This guide covers Ubuntu version 20.04 LTS and later.

sudo apt update
sudo apt upgrade

On macOS Mojave or later, select System Preferences >*Software Update*. Click Update Now if necessary.

On other versions, see this Apple support topic.

Select Start > Settings > Update & Security > Windows Update. Click Check for updates and install any that are available.

Install dependencies

Next, you’ll install some host dependencies using your package manager.

The current minimum required version for the main dependencies are:

Tool

Min. Version

CMake

3.20.5

Python

3.10

Devicetree compiler

1.4.6

  1. If using an Ubuntu version older than 22.04, it is necessary to add extra repositories to meet the minimum required versions for the main dependencies listed above. In that case, download, inspect and execute the Kitware archive script to add the Kitware APT repository to your sources list. A detailed explanation of kitware-archive.sh can be found here kitware third-party apt repository:

    wget https://apt.kitware.com/kitware-archive.sh
    sudo bash kitware-archive.sh
    
  2. Use apt to install the required dependencies:

    sudo apt install --no-install-recommends git cmake ninja-build gperf \
      ccache dfu-util device-tree-compiler wget minicom \
      python3-dev python3-pip python3-setuptools python3-tk python3-wheel xz-utils file \
      make gcc gcc-multilib g++-multilib libsdl2-dev libmagic1
    
  3. Verify the versions of the main dependencies installed on your system by entering:

    cmake --version
    python3 --version
    dtc --version
    

    Check those against the versions in the table in the beginning of this section. Refer to the installation_linux page for additional information on updating the dependencies manually.

  1. Install Homebrew:

    /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
    
  2. After the Homebrew installation script completes, follow the on-screen instructions to add the Homebrew installation to the path.

    • On macOS running on Apple Silicon, this is achieved with:

      (echo; echo 'eval "$(/opt/homebrew/bin/brew shellenv)"') >> ~/.zprofile
      source ~/.zprofile
      
    • On macOS running on Intel, use the command for Apple Silicon, but replace /opt/homebrew/ with /usr/local/.

  3. Use brew to install the required dependencies:

    brew install cmake ninja gperf python3 ccache qemu dtc libmagic wget openocd minicom
    
  4. Add the Homebrew Python folder to the path, in order to be able to execute python and pip as well python3 and pip3.

    (echo; echo 'export PATH="'$(brew --prefix)'/opt/python/libexec/bin:$PATH"') >> ~/.zprofile
    source ~/.zprofile
    

Note

Due to issues finding executables, the Zephyr Project doesn’t currently support application flashing using the Windows Subsystem for Linux (WSL) (WSL).

Therefore, we don’t recommend using WSL when getting started.

These instructions must be run in a cmd.exe command prompt terminal window. In modern version of Windows (10 and later) it is recommended to install the Windows Terminal application from the Microsoft Store. The required commands differ on PowerShell.

These instructions rely on Chocolatey. If Chocolatey isn’t an option, you can install dependencies from their respective websites and ensure the command line tools are on your PATH environment variable.

  1. Install chocolatey.

  2. Open a cmd.exe terminal window as Administrator. To do so, press the Windows key, type cmd.exe, right-click the Command Prompt search result, and choose Run as Administrator.

  3. Disable global confirmation to avoid having to confirm the installation of individual programs:

    choco feature enable -n allowGlobalConfirmation
    
  4. Use choco to install the required dependencies:

    choco install cmake --installargs 'ADD_CMAKE_TO_PATH=System'
    choco install ninja gperf python311 git dtc-msys2 wget 7zip unzip
    

    Warning

    As of November 2023, Python 3.12 is not recommended for Zephyr development on Windows, as some required Python dependencies may be difficult to install.

  5. Close the terminal window.

Install West

West is a swiss-army knife command line tool for Zephyr, to install it, please execute following commands:

  1. Use apt to install Python venv package:

    sudo apt install python3-venv
    
  2. Create a new virtual environment:

    python3 -m venv ~/udk1-sdk/.venv
    
  3. Activate the virtual environment:

    source ~/udk1-sdk/.venv/bin/activate
    

    Once activated your shell will be prefixed with (.venv). The virtual environment can be deactivated at any time by running deactivate.

    Note

    Remember to activate the virtual environment every time you start working.

  4. Install west

    pip install west
    

Install west, and make sure ~/.local/bin is on your PATH environment variable:

pip3 install --user -U west
echo 'export PATH=~/.local/bin:"$PATH"' >> ~/.bashrc
source ~/.bashrc
  1. Create a new virtual environment:

    python3 -m venv ~/udk1-sdk/.venv
    
  2. Activate the virtual environment:

    source ~/udk1-sdk/.venv/bin/activate
    

    Once activated your shell will be prefixed with (.venv). The virtual environment can be deactivated at any time by running deactivate.

    Note

    Remember to activate the virtual environment every time you start working.

  3. Install west

    pip install west
    

Install west

pip3 install -U west
  1. Open a cmd.exe terminal window as a regular user

  2. Create a new virtual environment:

    cd %HOMEPATH%
    python -m venv udk1-sdk\.venv
    
  3. Activate the virtual environment:

    udk1-sdk\.venv\Scripts\activate.bat
    

    Once activated your shell will be prefixed with (.venv). The virtual environment can be deactivated at any time by running deactivate.

    Note

    Remember to activate the virtual environment every time you start working.

  4. Install west

    pip install west
    
  1. Open a cmd.exe terminal window as a regular user

  2. Install west

    pip3 install -U west
    

Install the Zephyr SDK

Note

If you want to uninstall the SDK, you may simply remove the directory where you installed it.

  1. Download and verify the Zephyr SDK bundle:

    cd ~
    wget https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v0.14.2/zephyr-sdk-0.14.2_linux-x86_64.tar.gz
    wget -O - https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v0.14.2/sha256.sum | shasum --check --ignore-missing
    

    If your host architecture is 64-bit ARM (for example, Raspberry Pi), replace x86_64 with aarch64 in order to download the 64-bit ARM Linux SDK.

  2. Extract the Zephyr SDK bundle archive:

    tar xvf zephyr-sdk-0.14.2_linux-x86_64.tar.gz
    

    Note

    It is recommended to extract the Zephyr SDK bundle at one of the following locations:

    • $HOME

    • $HOME/.local

    • $HOME/.local/opt

    • $HOME/bin

    • /opt

    • /usr/local

    The Zephyr SDK bundle archive contains the zephyr-sdk-<version> directory and, when extracted under $HOME, the resulting installation path will be $HOME/zephyr-sdk-<version>.

  3. Run the Zephyr SDK bundle setup script:

    cd zephyr-sdk-0.14.2
    ./setup.sh
    

    Note

    You only need to run the setup script once after extracting the Zephyr SDK bundle.

    You must rerun the setup script if you relocate the Zephyr SDK bundle directory after the initial setup.

  4. Install udev rules, which allow you to flash most Zephyr boards as a regular user:

    sudo cp ~/zephyr-sdk-0.14.2/sysroots/x86_64-pokysdk-linux/usr/share/openocd/contrib/60-openocd.rules /etc/udev/rules.d
    sudo udevadm control --reload
    
  1. Download and verify the Zephyr SDK bundle:

    cd ~
    curl -L -O https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v0.14.2/zephyr-sdk-0.14.2_macos-x86_64.tar.gz
    curl -L https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v0.14.2/sha256.sum | shasum --check --ignore-missing
    

    If your host architecture is 64-bit ARM (Apple Silicon, also known as M1), replace x86_64 with aarch64 in order to download the 64-bit ARM macOS SDK.

  2. Extract the Zephyr SDK bundle archive:

    tar xvf zephyr-sdk-0.14.2_macos-x86_64.tar.gz
    

    Note

    It is recommended to extract the Zephyr SDK bundle at one of the following locations:

    • $HOME

    • $HOME/.local

    • $HOME/.local/opt

    • $HOME/bin

    • /opt

    • /usr/local

    The Zephyr SDK bundle archive contains the zephyr-sdk-<version> directory and, when extracted under $HOME, the resulting installation path will be $HOME/zephyr-sdk-<version>.

  3. Run the Zephyr SDK bundle setup script:

    cd zephyr-sdk-0.14.2
    ./setup.sh
    

    Note

    You only need to run the setup script once after extracting the Zephyr SDK bundle.

    You must rerun the setup script if you relocate the Zephyr SDK bundle directory after the initial setup.

  1. Open a cmd.exe terminal window as a regular user

  2. Download the Zephyr SDK bundle:

    cd %HOMEPATH%
    wget https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v0.14.2/zephyr-sdk-0.14.2_windows-x86_64.zip
    
  3. Extract the Zephyr SDK bundle archive:

    unzip zephyr-sdk-0.14.2_windows-x86_64.zip
    

    Note

    It is recommended to extract the Zephyr SDK bundle at one of the following locations:

    • %HOMEPATH%

    • %PROGRAMFILES%

    The Zephyr SDK bundle archive contains the zephyr-sdk-<version> directory and, when extracted under %HOMEPATH%, the resulting installation path will be %HOMEPATH%\zephyr-sdk-<version>.

  4. Run the Zephyr SDK bundle setup script:

    cd zephyr-sdk-0.14.2
    setup.cmd
    

    Note

    You only need to run the setup script once after extracting the Zephyr SDK bundle.

    You must rerun the setup script if you relocate the Zephyr SDK bundle directory after the initial setup.

Install UDK1-SDK package

Note

The UDK1 SDK is also a Zephyr-based example application. For a deeper understanding, please refer to this example-application page.

Caution

The published udk1-sdk repository will be provided soon. Please stay tuned!

The first step is to initialize the workspace folder udk1-sdk where the leaps-udk1-examples and all Zephyr modules will be cloned. Please follow these instructions:

  1. Open the Terminal

  2. Initialize udk1-sdk workspace for the leaps-udk1-examples with main revision.

    west init -m <udk1-sdk repository> --mr main udk1-sdk
    
  3. Clone the Zephyr source (version 3.1.0) and its modules.

    cd udk1-sdk
    west update
    
  4. Export a Zephyr CMake package. This allows CMake to automatically load boilerplate code required for building Zephyr applications.

    west zephyr-export
    
  5. Zephyr’s scripts/requirements.txt file declares additional Python dependencies. Install them with pip.

    pip install -r ./zephyr/scripts/requirements.txt
    
  6. Set up $ZEPHYR_BASE environment..

    source zephyr/zephyr-env.sh
    
  1. Open the Terminal

  2. Initialize udk1-sdk workspace for the leaps-udk1-examples with main revision.

    west init -m <udk1-sdk repository> --mr main udk1-sdk
    

    Caution

    The published udk1-sdk repository will be provided soon. Please stay tuned!

  3. Clone the Zephyr source (version 3.1.0) and its modules.

    cd udk1-sdk
    west update
    
  4. Export a Zephyr CMake package. This allows CMake to automatically load boilerplate code required for building Zephyr applications.

    west zephyr-export
    
  5. Zephyr’s scripts/requirements.txt file declares additional Python dependencies. Install them with pip.

    pip install -r ./zephyr/scripts/requirements.txt
    
  6. Set up $ZEPHYR_BASE environment..

    source zephyr/zephyr-env.sh
    
  1. Open a cmd.exe terminal window as a regular user

  2. Initialize udk1-sdk workspace for the leaps-udk1-examples with main revision.

    west init -m <udk1-sdk repository> --mr main udk1-sdk
    
  3. Clone the Zephyr source (version 3.1.0) and its modules.

    cd udk1-sdk
    west update
    
  4. Export a Zephyr CMake package. This allows CMake to automatically load boilerplate code required for building Zephyr applications.

    west zephyr-export
    
  5. Zephyr’s scripts/requirements.txt file declares additional Python dependencies. Install them with pip.

    pip install -r zephyr/scripts/requirements.txt
    
  6. Set up $ZEPHYR_BASE environment..

    cd zephyr
    zephyr-env.cmd
    

Device Setup

Before executing the example application, ensure that the devices are connected and open the Console window by following these steps:

  1. Use a USB-C data cable to connect the USB-C Data Port 2 of devices to host PC.

    ../../../_images/leaps-connect-usb-port2.gif
  2. Install the OpenOCD tool by referring to the OpenOCD tab in the Programming/Upgrading firmware section. This section also includes other solutions for flashing the firmware.

  3. Execute the following commands to open minicom (on Linux and macOs), or Tera Term (on Windows) to access the connected serial port and ready to view the printed messages from the examples.

  1. Open the Terminal

  2. Execute the command below with ttyACM<X> (0 is default port for 1st connected device)

    minicom -b 115200 -D /dev/ttyACM0
    

    Note

    Please verify all the connected device (ttyACM<X>) that you intend to re-flash by using the following command

    ls ../../dev/
    
  3. When successfully connected to device

    Welcome to minicom 2.8
    
    OPTIONS: I18n
    Port /dev/ttyACM0, 04:49:57
    
    Press CTRL-A Z for help on special keys
    
  1. Open the Terminal

  2. Execute the command below with /dev/tty.usb<xxx> (modem1410 is example)

    minicom -b 115200 -D /dev/tty.usbmodem1410
    

    Note

    Please verify the connected device (tty.usb<xxx>) that you intend to re-flash by using the following command

    ls ../../dev/
    
  3. When successfully connected to device

    Welcome to minicom 2.8
    
    OPTIONS:
    Compiled on Jan  4 2021, 00:04:46.
    Port /dev/tty.usbmodem1410, 19:42:45
    
    Press Meta-Z for help on special keys
    
  1. Open the Tera Term tool

  2. Goto Setup > Serial Port

    ../../../_images/setup.png
  3. Select connected port of device (e.g. Port 5 is connecting to device)

    ../../../_images/port.png
  4. Select the Speed as 115200

    ../../../_images/speed.png
  5. Select Close and New Open (or New Open)

Coordinated Examples Execution

In the UDK1-SDK package, at @yourdir/udk1-sdk/leaps-udk1-examples/app/006_ex_uwb location, various examples are available. Achieving collaborative Ultra-Wideband operation requires pairing two examples as outlined in the table below.

Example 1

Example 2

ex_01a_simple_tx/simple_tx.c

ex_02a_simple_rx/simple_rx.c

ex_01b_tx_sleep/tx_sleep_idleRC.c

ex_02a_simple_rx/simple_rx.c

ex_01b_tx_sleep/tx_sleep.c

ex_02a_simple_rx/simple_rx.c

ex_01c_tx_sleep_auto/tx_sleep_auto.c

ex_02a_simple_rx/simple_rx.c

ex_01d_tx_timed_sleep/tx_timed_sleep.c

ex_02a_simple_rx/simple_rx.c

ex_01e_tx_with_cca/tx_with_cca.c

ex_02a_simple_rx/simple_rx.c

ex_01g_simple_tx_sts_sdc/simple_tx_sts_sdc.c

ex_02g_simple_rx_sts_sdc/simple_rx_sts_sdc.c

ex_01h_simple_tx_pdoa/simple_tx_pdoa.c

ex_02h_simple_rx_pdoa/simple_rx_pdoa.c

ex_01i_simple_tx_aes/simple_tx_aes.c

ex_02i_simple_rx_aes/simple_rx_aes.c

ex_02a_simple_rx/simple_rx_nlos.c

ex_01a_simple_tx/simple_tx.c

ex_02c_rx_diagnostics/rx_diagnostics.c

ex_01a_simple_tx/simple_tx.c

ex_02d_rx_sniff/rx_sniff.c

ex_01a_simple_tx/simple_tx.c

ex_02e_rx_dbl_buff/double_buffer_rx.c

ex_01a_simple_tx/simple_tx.c

ex_02f_rx_with_crystal_trim/rx_with_xtal_trim.c

ex_01a_simple_tx/simple_tx.c

ex_03a_tx_wait_resp/tx_wait_resp.c

ex_03b_rx_send_resp/rx_send_resp.c

ex_03d_tx_wait_resp_interrupts/tx_wait_resp_int.c

ex_03b_rx_send_resp/rx_send_resp.c

ex_05a_ds_twr_init/ds_twr_initiator.c

ex_05b_ds_twr_resp/ds_twr_responder.c

ex_05a_ds_twr_init/ds_twr_initiator_sts.c

ex_05b_ds_twr_resp/ds_twr_responder_sts.c

ex_05c_ds_twr_init_sts_sdc/ds_twr_sts_sdc_initiator.c

ex_05d_ds_twr_resp_sts_sdc/ds_twr_sts_sdc_responder.c

ex_06a_ss_twr_initiator/ss_twr_initiator_sts_no_data.c

ex_06b_ss_twr_responder/ss_twr_responder_sts_no_data.c

ex_06a_ss_twr_initiator/ss_twr_initiator_sts.c

ex_06b_ss_twr_responder/ss_twr_responder_sts.c

ex_06a_ss_twr_initiator/ss_twr_initiator.c

ex_06b_ss_twr_responder/ss_twr_responder.c

ex_06e_AES_ss_twr_initiator/ss_aes_twr_initiator.c

ex_06f_AES_ss_twr_responder/ss_aes_twr_responder.c

ex_07a_ack_data_tx/ack_data_tx.c

ex_07b_ack_data_rx/ack_data_rx.c

ex_15_le_pend/le_pend_rx.c

ex_15_le_pend/le_pend_tx.c

For detailed instructions, please refer to the description provided in each example’s source *.c file.

For example: ex_01h_simple_tx_pdoa/simple_tx_pdoa.c

*  @file    simple_tx_pdoa.c
*  @brief   Simple TX PDOA example code, companion to Simple RX PDOA example.
*           See note 7 regarding information on calibrating the system

Build and run the example

This section guide you on how to build and re-flash the software.

Note

If any issues occur within the Zephyr environment, please refer to the Troubleshooting Installation section.

  1. Ensure complete Device Setup guideline.

  2. Go into the examples directory

    cd leaps-udk1-examples
    
  3. (Optional) Clean the old build directory

    rm -rf build/
    
  4. Build the example

    This section guides you on how to build the example by selecting one expected example

    1. Execute the below command to show the menu, with $BOARD is leaps_lc14 or leaps_lc13

      west build -t menuconfig -b $BOARD -s app
      
    2. Select the Sample Application and press Enter

      ../../../_images/main_menu.png
    3. You will see the default Example, press enter if you want to select another example

      ../../../_images/menu_default_example.png
    4. Select the Example by scrolling up or down then press Enter

      ../../../_images/menu_example_list.png
    5. Press ESC and Y to save the selection

      ../../../_images/menu_exit_andsave.png
    6. Build the example

      west build
      
    7. Build the example Successfully

      [169/179] Linking C executable zephyr/zephyr_pre0.elf
      
      [173/179] Linking C executable zephyr/zephyr_pre1.elf
      
      [179/179] Linking C executable zephyr/zephyr.elf
      Memory region         Used Size  Region Size  %age Used
                 FLASH:       31268 B         1 MB      2.98%
                  SRAM:        8568 B       256 KB      3.27%
              IDT_LIST:          0 GB         2 KB      0.00%
      

    This section guides you on how to build the example with default example

    1. Execute the below command, with $BOARD is leaps_lc14 or leaps_lc13

      west build -b $BOARD -s app
      
    2. Build the example Successfully

      [169/179] Linking C executable zephyr/zephyr_pre0.elf
      
      [173/179] Linking C executable zephyr/zephyr_pre1.elf
      
      [179/179] Linking C executable zephyr/zephyr.elf
      Memory region         Used Size  Region Size  %age Used
                 FLASH:       31268 B         1 MB      2.98%
                  SRAM:        8568 B       256 KB      3.27%
              IDT_LIST:          0 GB         2 KB      0.00%
      
  5. And then re-flash the hex file to the device:

    west flash
    
  6. Successfully, re-flashed Firmware

    Open On-Chip Debugger 0.11.0+dev-00245-gaf169e805 (2022-05-14-14:24)
    Licensed under GNU GPL v2
    For bug reports, read
            http://openocd.org/doc/doxygen/bugs.html
    DEPRECATED! use 'adapter speed' not 'adapter_khz'
    exit_debug_mode
    Info : Using CMSIS-DAPv2 interface with VID:PID=0x0d28:0x0204, serial=01100E003602002e00354146570120313238
    Info : CMSIS-DAP: SWD  Supported
    Info : CMSIS-DAP: FW Version = 2.1.0
    Info : CMSIS-DAP: Serial# = 01100E003602002e00354146570120313238
    Info : CMSIS-DAP: Interface Initialised (SWD)
    Info : SWCLK/TCK = 1 SWDIO/TMS = 1 TDI = 0 TDO = 0 nTRST = 0 nRESET = 1
    Info : CMSIS-DAP: Interface ready
    Info : clock speed 10000 kHz
    Info : SWD DPIDR 0x2ba01477
    Info : nrf52.cpu: hardware has 6 breakpoints, 4 watchpoints
    Info : starting gdb server for nrf52.cpu on 3333
    Info : Listening on port 3333 for gdb connections
        TargetName         Type       Endian TapName            State
    --  ------------------ ---------- ------ ------------------ ------------
     0* nrf52.cpu          cortex_m   little nrf52.cpu          running
    
    target halted due to debug-request, current mode: Thread
    xPSR: 0x01000000 pc: 0x0000243c msp: 0x20001838
    Info : nRF52840-CKAA(build code: D0) 1024kB Flash, 256kB RAM
    Warn : Adding extra erase range, 0x00007a24 .. 0x00007fff
    auto erase enabled
    wrote 31268 bytes from file @/udk1-sdk/zephyr/zephyr.hex in     1.151423s             (26.519 KiB/s)
    
    target halted due to debug-request, current mode: Thread
    xPSR: 0x01000000 pc: 0x0000243c msp: 0x20001838
    verified 31268 bytes in 0.092640s (329.611 KiB/s)
    
  7. Example output when running the TEST_BUTTONS example by pressing the button C, B and A, respectively.

    *** Booting Zephyr OS build 5db7528340ec  ***
    PRESS BUTTON EXAMPLE
    Button C is pressed at 24778
    Button C is released at 28996
    Button B is pressed at 76012
    Button B is released at 81454
    Button A is pressed at 104172
    Button A is released at 109917
    
  1. Ensure complete Device Setup guideline.

  2. Go into the examples directory

    cd leaps-udk1-examples
    
  3. (Optional) Clean the old build directory

    rm -rf build/
    
  4. Build the example

    This section guides you on how to build the example with selecting one expect example

    1. Execute the below command to show the menu, with $BOARD is leaps_lc14 or leaps_lc13

      west build -t menuconfig -b $BOARD -s app
      
    2. Select the Sample Application and press Enter

      ../../../_images/main_menu.png
    3. You will see the default Example, press enter if you want to select another example

      ../../../_images/menu_default_example.png
    4. Select the Example by croll up/down then press Enter

      ../../../_images/menu_example_list.png
    5. Press ESC and Y to save the selection

      ../../../_images/menu_exit_andsave.png
    6. Build the example

      west build
      
    7. Build the example Successfully

      [169/179] Linking C executable zephyr/zephyr_pre0.elf
      
      [173/179] Linking C executable zephyr/zephyr_pre1.elf
      
      [179/179] Linking C executable zephyr/zephyr.elf
      Memory region         Used Size  Region Size  %age Used
                 FLASH:       31268 B         1 MB      2.98%
                  SRAM:        8568 B       256 KB      3.27%
              IDT_LIST:          0 GB         2 KB      0.00%
      

    This section guides you on how to build the example with default example

    1. Execute the below command, with $BOARD is leaps_lc14 or leaps_lc13

      west build -b $BOARD
      
    2. Build the example Successfully

      [169/179] Linking C executable zephyr/zephyr_pre0.elf
      
      [173/179] Linking C executable zephyr/zephyr_pre1.elf
      
      [179/179] Linking C executable zephyr/zephyr.elf
      Memory region         Used Size  Region Size  %age Used
                 FLASH:       31268 B         1 MB      2.98%
                  SRAM:        8568 B       256 KB      3.27%
              IDT_LIST:          0 GB         2 KB      0.00%
      
  5. And then re-flash the hex file to the device:

    west flash
    
  6. Successfully, re-flashed Firmware

    Open On-Chip Debugger 0.11.0+dev-00245-gaf169e805 (2022-05-14-14:24)
    Licensed under GNU GPL v2
    For bug reports, read
            http://openocd.org/doc/doxygen/bugs.html
    DEPRECATED! use 'adapter speed' not 'adapter_khz'
    exit_debug_mode
    Info : Using CMSIS-DAPv2 interface with VID:PID=0x0d28:0x0204, serial=01100E003602002e00354146570120313238
    Info : CMSIS-DAP: SWD  Supported
    Info : CMSIS-DAP: FW Version = 2.1.0
    Info : CMSIS-DAP: Serial# = 01100E003602002e00354146570120313238
    Info : CMSIS-DAP: Interface Initialised (SWD)
    Info : SWCLK/TCK = 1 SWDIO/TMS = 1 TDI = 0 TDO = 0 nTRST = 0 nRESET = 1
    Info : CMSIS-DAP: Interface ready
    Info : clock speed 10000 kHz
    Info : SWD DPIDR 0x2ba01477
    Info : nrf52.cpu: hardware has 6 breakpoints, 4 watchpoints
    Info : starting gdb server for nrf52.cpu on 3333
    Info : Listening on port 3333 for gdb connections
        TargetName         Type       Endian TapName            State
    --  ------------------ ---------- ------ ------------------ ------------
     0* nrf52.cpu          cortex_m   little nrf52.cpu          running
    
    target halted due to debug-request, current mode: Thread
    xPSR: 0x01000000 pc: 0x0000243c msp: 0x20001838
    Info : nRF52840-CKAA(build code: D0) 1024kB Flash, 256kB RAM
    Warn : Adding extra erase range, 0x00007a24 .. 0x00007fff
    auto erase enabled
    wrote 31268 bytes from file @/udk1-sdk/zephyr/zephyr.hex in     1.151423s             (26.519 KiB/s)
    
    target halted due to debug-request, current mode: Thread
    xPSR: 0x01000000 pc: 0x0000243c msp: 0x20001838
    verified 31268 bytes in 0.092640s (329.611 KiB/s)
    
  7. Example output when running the TEST_BUTTONS example by pressing the button C, B and A, respectively.

    *** Booting Zephyr OS build 5db7528340ec  ***
    PRESS BUTTON EXAMPLE
    Button C is pressed at 24778
    Button C is released at 28996
    Button B is pressed at 76012
    Button B is released at 81454
    Button A is pressed at 104172
    Button A is released at 109917
    
  1. Ensure complete Device Setup guideline.

  2. Go into the examples directory

    cd leaps-udk1-examples
    
  3. (Optional) Clean the old build directory and press Y

    rd /s build
    
  4. Build the example

    This section guides you on how to build the example by selecting one expected example

    1. Execute the below command to show the menu, with $BOARD is leaps_lc14 or leaps_lc13

    west build -t menuconfig -b $BOARD -s app
    
    1. Select the Sample Application and press Enter

    ../../../_images/main_menu.png
    1. You will see the default Example, press enter if you want to select another example

    ../../../_images/menu_default_example.png
    1. Select the Example by scrolling up or down then press Enter

    ../../../_images/menu_example_list.png
    1. Press ESC and Y to save the selection

    ../../../_images/menu_exit_andsave.png
    1. Build the example

    west build
    
    1. Build the example Successfully

    [152/158] Linking C executable zephyr\zephyr_pre1.elf←[K1.dir/dev_handles.c.obj←[Kj←[K
    
    [158/158] Linking C executable zephyr\zephyr.elf←[Kr_final.dir/dev_handles.c.obj←[Kj←[K
    Memory region         Used Size  Region Size  %age Used
               FLASH:       32668 B         1 MB      3.12%
                SRAM:        4496 B       248 KB      1.77%
            IDT_LIST:          0 GB         2 KB      0.00%
    

    This section guides you on how to build the example with default example

    1. Execute the below command, with $BOARD is leaps_lc14 or leaps_lc13

      west build -b $BOARD -s app
      
    2. Build the example Successfully

      [1/161] Generating include/generated/version.h
      -- Zephyr version: 3.1.0 (@/udk1-sdk/zephyr), build: zephyr-v3.1.0
      [151/161] Linking C executable zephyr\zephyr_pre0.elf
      
      [155/161] Linking C executable zephyr\zephyr_pre1.elf
      
      [161/161] Linking C executable zephyr\zephyr.elf
      Memory region         Used Size  Region Size  %age Used
                 FLASH:       91160 B         1 MB      8.69%
                  SRAM:        5056 B       248 KB      1.99%
              IDT_LIST:          0 GB         2 KB      0.00%
      
  5. And then re-flash the hex file to the device:

    west flash
    
  6. Successfully, re-flashed Firmware

    -- west flash: rebuilding
    ninja: no work to do.
    -- west flash: using runner openocd
    -- runners.openocd: Flashing file: D:/01_Work/udk1-sdk/udk1-sdk/leaps-udk1-examples/build/zephyr/zephyr.hex
    xPack Open On-Chip Debugger 0.12.0-01004-g9ea7f3d64-dirty (2023-01-30-15:04)
    Licensed under GNU GPL v2
    For bug reports, read
            http://openocd.org/doc/doxygen/bugs.html
    DEPRECATED! use 'adapter speed' not 'adapter_khz'
    exit_debug_mode
    Info : Using CMSIS-DAPv2 interface with VID:PID=0x0d28:0x0204, serial=01100E003602002d00184146570120313238
    Info : CMSIS-DAP: SWD supported
    Info : CMSIS-DAP: Atomic commands supported
    Info : CMSIS-DAP: Test domain timer supported
    Info : CMSIS-DAP: FW Version = 2.1.0
    Info : CMSIS-DAP: Serial# = 01100E003602002d00184146570120313238
    Info : CMSIS-DAP: Interface Initialised (SWD)
    Info : SWCLK/TCK = 1 SWDIO/TMS = 1 TDI = 0 TDO = 0 nTRST = 0 nRESET = 1
    Info : CMSIS-DAP: Interface ready
    Info : clock speed 10000 kHz
    Info : SWD DPIDR 0x2ba01477
    Info : [nrf52.cpu] Cortex-M4 r0p1 processor detected
    Info : [nrf52.cpu] target has 6 breakpoints, 4 watchpoints
    Info : starting gdb server for nrf52.cpu on 3333
    Info : Listening on port 3333 for gdb connections
        TargetName         Type       Endian TapName            State
    --  ------------------ ---------- ------ ------------------ ------------
     0* nrf52.cpu          cortex_m   little nrf52.cpu          running
    
    [nrf52.cpu] halted due to debug-request, current mode: Thread
    xPSR: 0x01000000 pc: 0x00002e10 msp: 0x20002b10
    Info : nRF52840-CKAA(build code: D0) 1024kB Flash, 256kB RAM
    Warn : Adding extra erase range, 0x00007f9c .. 0x00007fff
    auto erase enabled
    wrote 32668 bytes from file D:/01_Work/udk1-sdk/udk1-sdk/leaps-udk1-examples/build/zephyr/zephyr.hex in 1.178412s (27.072 KiB/s)
    
    [nrf52.cpu] halted due to debug-request, current mode: Thread
    xPSR: 0x01000000 pc: 0x00002a5c msp: 0x20002850
    verified 32668 bytes in 0.099523s (320.552 KiB/s)
    
  7. Example output when running the TEST_BUTTONS example by pressing the button C, B and A, respectively.

    *** Booting Zephyr OS build 5db7528340ec  ***
    PRESS BUTTON EXAMPLE
    Button C is pressed at 24778
    Button C is released at 28996
    Button B is pressed at 76012
    Button B is released at 81454
    Button A is pressed at 104172
    Button A is released at 109917