| .. _nrf51_pca10028: |
| |
| nRF51-PCA10028 |
| ############## |
| |
| Overview |
| ******** |
| |
| Zephyr applications use the nrf51_pca10028 board configuration to run on the |
| nRF51 Development Kit (PCA10028) hardware. It provides support for the Nordic Semiconductor |
| nRF51822 ARM Cortex-M0 CPU and the following devices: |
| |
| * :abbr:`NVIC (Nested Vectored Interrupt Controller)` |
| * :abbr:`RTC (nRF RTC System Clock)` |
| * UART |
| * GPIO |
| * FLASH |
| * RADIO (Bluetooth Low Energy) |
| * Segger RTT (RTT Console) |
| |
| .. figure:: img/nrf51_pca10028.jpg |
| :width: 442px |
| :align: center |
| :alt: nRF51 PCA10028 DK |
| |
| nRF51 PCA10028 DK (Credit: Nordic Semi) |
| |
| More information about the board can be found at the |
| `nRF51 DK website`_. The `Nordic Semiconductor Infocenter`_ |
| 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 |
| ================== |
| |
| The nrf51_pca10028 board configuration supports the following nRF51 |
| hardware features: |
| |
| +-----------+------------+----------------------+ |
| | Interface | Controller | Driver/Component | |
| +===========+============+======================+ |
| | NVIC | on-chip | nested vectored | |
| | | | interrupt controller | |
| +-----------+------------+----------------------+ |
| | RTC | on-chip | system clock | |
| +-----------+------------+----------------------+ |
| | UART | on-chip | serial port | |
| +-----------+------------+----------------------+ |
| | GPIO | on-chip | gpio | |
| +-----------+------------+----------------------+ |
| | FLASH | on-chip | flash | |
| +-----------+------------+----------------------+ |
| | RADIO | on-chip | Bluetooth | |
| +-----------+------------+----------------------+ |
| | RTT | on-chip | console | |
| +-----------+------------+----------------------+ |
| |
| Other hardware features are not supported by the Zephyr kernel. |
| See `nRF51 DK website`_ and `Nordic Semiconductor Infocenter`_ |
| 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 |
| ************************* |
| |
| 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 :ref:`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: nrf51_pca10028 |
| :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 :file:`boards/arm/nrf51_pca10028/board.h`. |
| |
| References |
| ********** |
| |
| .. target-notes:: |
| |
| .. _nRF51 DK website: http://www.nordicsemi.com/eng/Products/nRF51-DK |
| .. _Nordic Semiconductor Infocenter: http://infocenter.nordicsemi.com/ |
| |