| .. zephyr:board:: nrf51dk |
| |
| Overview |
| ******** |
| |
| The nRF51 Development Kit (PCA10028) hardware provides support for the Nordic |
| Semiconductor nRF51822 ARM Cortex-M0 CPU and the following devices: |
| |
| * :abbr:`ADC (Analog to Digital Converter)` |
| * CLOCK |
| * FLASH |
| * :abbr:`GPIO (General Purpose Input Output)` |
| * :abbr:`I2C (Inter-Integrated Circuit)` |
| * :abbr:`NVIC (Nested Vectored Interrupt Controller)` |
| * RADIO (Bluetooth Low Energy) |
| * :abbr:`RTC (nRF RTC System Clock)` |
| * Segger RTT (RTT Console) |
| * :abbr:`SPI (Serial Peripheral Interface)` |
| * :abbr:`UART (Universal asynchronous receiver-transmitter)` |
| * :abbr:`WDT (Watchdog Timer)` |
| |
| More information about the board can be found at the |
| `nRF51 DK website`_. The `nRF51 Development Kit User Guide`_ |
| contains the processor's information and the datasheet. |
| |
| |
| Hardware |
| ******** |
| |
| nRF51 DK has two external oscillators. The frequency of |
| the slow clock is 32.768 kHz. The frequency of the main clock |
| is 16 MHz. |
| |
| Supported Features |
| ================== |
| |
| .. zephyr:board-supported-hw:: |
| |
| See `nRF51 DK website`_ and `nRF51 Development Kit User Guide`_ |
| for a complete list of nRF51 Development Kit board hardware features. |
| |
| Connections and IOs |
| =================== |
| |
| LED |
| --- |
| |
| * LED1 (green) = P0.21 |
| * LED2 (green) = P0.22 |
| * LED3 (green) = P0.23 |
| * LED4 (green) = P0.24 |
| |
| Push buttons |
| ------------ |
| |
| * BUTTON1 = SW1 = P0.17 |
| * BUTTON2 = SW2 = P0.18 |
| * BUTTON3 = SW3 = P0.19 |
| * BUTTON4 = SW4 = P0.20 |
| * BOOT = SW5 = boot/reset |
| |
| Programming and Debugging |
| ************************* |
| |
| .. zephyr:board-supported-runners:: |
| |
| Flashing |
| ======== |
| |
| Follow the instructions in the :ref:`nordic_segger` page to install |
| and configure all the necessary software. Further information can be |
| found in :ref:`nordic_segger_flashing`. Then build and flash |
| applications as usual (see :ref:`build_an_application` and |
| :ref:`application_run` for more details). |
| |
| Here is an example for the :zephyr:code-sample:`hello_world` application. |
| |
| First, run your favorite terminal program to listen for output. |
| |
| .. code-block:: console |
| |
| $ minicom -D <tty_device> -b 115200 |
| |
| Replace :code:`<tty_device>` with the port where the board nRF51 DK |
| can be found. For example, under Linux, :code:`/dev/ttyACM0`. |
| |
| Then build and flash the application in the usual way. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/hello_world |
| :board: nrf51dk/nrf51822 |
| :goals: build flash |
| |
| Debugging |
| ========= |
| |
| Refer to the :ref:`nordic_segger` page to learn about debugging Nordic boards with a |
| Segger IC. |
| |
| |
| Testing the LEDs and buttons in the nRF51 DK |
| ******************************************** |
| |
| There are 2 samples that allow you to test that the buttons (switches) and LEDs on |
| the board are working properly with Zephyr: |
| |
| .. code-block:: console |
| |
| samples/basic/blinky |
| samples/basic/button |
| |
| You can build and flash the examples to make sure Zephyr is running correctly on |
| your board. The button and LED definitions can be found in |
| :zephyr_file:`boards/nordic/nrf51dk/nrf51dk_nrf51822.dts`. |
| |
| References |
| ********** |
| |
| .. target-notes:: |
| |
| .. _nRF51 DK website: https://www.nordicsemi.com/Software-and-Tools/Development-Kits/nRF51-DK |
| .. _nRF51 Development Kit User Guide: https://docs.nordicsemi.com/bundle/nRF51-Series-DK/resource/nRF51_Development_Kit_User_Guide_v1.2.pdf |
