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107 lines
3.2 KiB
107 lines
3.2 KiB
.. zephyr:board:: contextualelectronics_abc |
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Overview |
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******** |
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The Contextual Electronics ABC (PCA10056) hardware provides support for the |
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Nordic Semiconductor nRF52840 ARM Cortex-M4F CPU and the following devices: |
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* CLOCK |
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* FLASH |
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* :abbr:`GPIO (General Purpose Input Output)` |
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* :abbr:`I2C (Inter-Integrated Circuit)` |
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* :abbr:`MPU (Memory Protection Unit)` |
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* :abbr:`NVIC (Nested Vectored Interrupt Controller)` |
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* :abbr:`PWM (Pulse Width Modulation)` |
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* Segger RTT (RTT Console) |
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* :abbr:`SPI (Serial Peripheral Interface)` |
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* :abbr:`UART (Universal asynchronous receiver-transmitter)` |
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* Quectel BG95 Modem |
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More information about the board can be found at the `ABC Board website`_. |
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The `Nordic Semiconductor Infocenter`_ contains the processor's information |
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and the datasheet. |
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Hardware |
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******** |
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ABC board has two external oscillators. The frequency of the slow clock |
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is 32.768 kHz. The frequency of the main clock is 32 MHz. |
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- nRF52840 ARM Cortex-M4F processor at 64 MHz |
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- 1 MB flash memory and 256 KB of SRAM |
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- SWD connector |
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Supported Features |
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================== |
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.. zephyr:board-supported-hw:: |
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See `ABC Board website`_ for more details on this board, and |
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`Nordic Semiconductor Infocenter`_ for a complete list of SoC |
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features. |
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Programming and Debugging |
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************************* |
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.. zephyr:board-supported-runners:: |
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Applications for the ``contextualelectronics_abc`` board configuration can be |
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built and flashed in the usual way (see :ref:`build_an_application` |
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and :ref:`application_run` for more details). |
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Flashing |
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======== |
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Flashing Zephyr onto the ``contextualelectronics_abc`` board requires |
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an external programmer. The programmer is attached to the SWD header. |
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Build the Zephyr kernel and the :zephyr:code-sample:`hello_world` sample application. |
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.. zephyr-app-commands:: |
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:zephyr-app: samples/hello_world |
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:board: contextualelectronics_abc |
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:goals: build |
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:compact: |
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Flash the image. |
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.. zephyr-app-commands:: |
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:zephyr-app: samples/hello_world |
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:board: contextualelectronics_abc |
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:goals: flash |
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:compact: |
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To see the output, run your favorite terminal program. |
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.. code-block:: console |
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$ minicom -D <tty_device> -b 115200 |
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Replace :code:`<tty_device>` with the port where the ABC board |
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can be found. For example, under Linux, :code:`/dev/ttyACM0`. |
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Debugging |
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========= |
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Refer to the :ref:`nordic_segger` page to learn about debugging Nordic boards with a |
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Segger IC. |
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Selecting the pins |
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================== |
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Pins can be configured in the board pinctrl file. To see the available mappings, |
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open the `nRF52840 Product Specification`_, chapter 7 'Hardware and Layout'. |
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In the table 7.1.1 'aQFN73 ball assignments' select the pins marked |
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'General purpose I/O'. Note that pins marked as 'low frequency I/O only' can only be used |
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in under-10KHz applications. They are not suitable for 115200 speed of UART. |
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References |
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********** |
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.. target-notes:: |
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.. _ABC Board website: https://contextualelectronics.com/courses/advanced-ble-cell-abc-board/ |
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.. _Nordic Semiconductor Infocenter: https://infocenter.nordicsemi.com |
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.. _J-Link Software and documentation pack: https://www.segger.com/jlink-software.html |
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.. _nRF52840 Product Specification: http://infocenter.nordicsemi.com/pdf/nRF52840_PS_v1.0.pdf
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