231 lines
7.5 KiB
ReStructuredText
231 lines
7.5 KiB
ReStructuredText
.. _ubx_ninab4_nrf52833:
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u-blox EVK NINA-B40x
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####################
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Overview
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********
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The u-blox NINA-B4 Evaluation Kit hardware is a Bluetooth low energy
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module based on the Nordic Semiconductor nRF52833 ARM Cortex-M4F CPU
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and has support for the following features:
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* :abbr:`ADC (Analog to Digital Converter)`
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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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* RADIO (Bluetooth Low Energy)
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* :abbr:`RTC (nRF RTC System Clock)`
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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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* :abbr:`USB (Universal Serial Bus)`
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* :abbr:`WDT (Watchdog Timer)`
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.. figure:: img/EVK-NINA-B406_Top_web.jpg
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EVK NINA-B4
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More information about the NINA-B4 module and the EVK-NINA-B4 can be
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found at `NINA-B40 product page`_ and `EVK-NINA-B4 product page`_.
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Supported Features
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==================
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The ubx_evkninab4/nrf52833 board configuration supports the following
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hardware features:
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+-----------+------------+----------------------+
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| Interface | Controller | Driver/Component |
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+===========+============+======================+
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| ADC | on-chip | adc |
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+-----------+------------+----------------------+
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| CLOCK | on-chip | clock_control |
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+-----------+------------+----------------------+
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| FLASH | on-chip | flash |
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+-----------+------------+----------------------+
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| GPIO | on-chip | gpio |
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+-----------+------------+----------------------+
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| I2C(M) | on-chip | i2c |
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+-----------+------------+----------------------+
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| MPU | on-chip | arch/arm |
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+-----------+------------+----------------------+
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| NVIC | on-chip | arch/arm |
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+-----------+------------+----------------------+
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| PWM | on-chip | pwm |
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+-----------+------------+----------------------+
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| RADIO | on-chip | Bluetooth low energy |
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+-----------+------------+----------------------+
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| RTC | on-chip | system clock |
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+-----------+------------+----------------------+
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| RTT | Segger | console |
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+-----------+------------+----------------------+
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| SPI(M/S) | on-chip | spi |
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+-----------+------------+----------------------+
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| UART | on-chip | serial |
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+-----------+------------+----------------------+
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| USB | on-chip | usb |
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+-----------+------------+----------------------+
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| WDT | on-chip | watchdog |
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+-----------+------------+----------------------+
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Other hardware features have not been enabled yet for this board.
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See `EVK-NINA-B4 product page`_ and `NINA-B40 Data Sheet`_
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for a complete list of EVK NINA-B4 hardware features.
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Connections and IOs
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===================
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LED
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---
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* LED0 (red) = P0.13
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* LED1 (green) = P1.01
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* LED2 (blue) = P1.00
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Push buttons
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------------
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* BUTTON1 = SW1 = P1.01 (Shared with green LED)
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* BUTTON2 = SW2 = P0.02
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General information on module pin numbering
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-------------------------------------------
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The numbering of the pins on the module and EVK do not follow the GPIO
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numbering on the nRF52833 SoC. Please see the `NINA-B40 Data Sheet`_ for
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information on how to map NINA-B40 pins to the pin numbering on the
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nRF52833 SoC.
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The reason for this is the u-blox module family concept where different
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modules share the same pinout and can be interchanged, see
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`NINA module family Nested design`_.
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Programming and Debugging
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*************************
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Applications for the ``ubx_evkninab4/nrf52833`` 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); however, the standard
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debugging targets are not currently available.
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Flashing
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========
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Build and flash applications as usual (see
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:ref:`build_an_application` and :ref:`application_run` for more details)
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Here is an example for the :zephyr:code-sample:`hello_world` application.
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Open a terminal program to the USB Serial Port installed when connecting
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the board and listen for output.
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Settings: 115200, 8N1, no flow control.
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Then build and flash the application in the usual way.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: ubx_evkninab4/nrf52833
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:goals: build flash
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Debugging
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=========
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Refer to the :ref:`nordic_segger` page to learn about debugging boards
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containing a Nordic Semiconductor chip with a Segger IC.
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Testing the LEDs and buttons in the EVK NINA-B40x
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*************************************************
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There are 2 samples that allow you to test that the buttons (switches)
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and LEDs on the board are working properly with Zephyr:
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.. code-block:: console
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samples/basic/blinky
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samples/basic/button
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You can build and flash the examples to make sure Zephyr is running
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correctly on your board. The button and LED definitions can be found in
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:zephyr_file:`boards/u-blox/ubx_evkninab4/ubx_evkninab4_nrf52833.dts`.
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Note that the buttons on the EVK-NINA-B4 are marked SW1 and SW2, which
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are named sw0 and sw1 in the dts file.
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Also note that the SW1 button and the green LED are connected on HW level.
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Using UART1
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***********
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The following approach can be used when an application needs to use
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more than one UART for connecting peripheral devices:
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1. Add device tree overlay file to the main directory of your application:
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.. code-block:: devicetree
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&pinctrl {
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uart1_default: uart1_default {
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group1 {
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psels = <NRF_PSEL(UART_TX, 0, 14)>,
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<NRF_PSEL(UART_RX, 0, 16)>;
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};
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};
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/* required if CONFIG_PM_DEVICE=y */
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uart1_sleep: uart1_sleep {
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group1 {
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psels = <NRF_PSEL(UART_TX, 0, 14)>,
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<NRF_PSEL(UART_RX, 0, 16)>;
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low-power-enable;
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};
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};
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};
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&uart1 {
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compatible = "nordic,nrf-uarte";
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current-speed = <115200>;
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status = "okay";
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pinctrl-0 = <&uart1_default>;
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pinctrl-1 = <&uart1_sleep>;
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pinctrl-names = "default", "sleep";
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};
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In the overlay file above, pin P0.16 is used for RX and P0.14 is used for TX
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2. Use the UART1 as ``DEVICE_DT_GET(DT_NODELABEL(uart1))``
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Overlay file naming
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===================
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The file has to be named ``<board>.overlay`` and placed in the app main directory to be
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picked up automatically by the device tree compiler.
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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 data sheet for the NINA-B4 at `NINA-B40 Data Sheet`_, Section 3 'Pin definition'.
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In the table 7 select the pins marked 'GPIO_xx'. Note that pins marked as 'Radio sensitive pin'
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can only be used in under-10KHz applications. They are not suitable for 115200 speed of UART.
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.. note:
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Pins are defined according to the "nRF52" pin number, not the module pad number.
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References
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**********
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.. target-notes::
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.. _NINA-B40 product page: https://www.u-blox.com/en/product/nina-b40-series-open-cpu
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.. _EVK-NINA-B4 product page: https://www.u-blox.com/en/product/evk-nina-b4
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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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.. _NINA-B40 Data Sheet: https://www.u-blox.com/en/docs/UBX-19049405
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.. _NINA module family Nested design: https://www.u-blox.com/en/docs/UBX-17065600
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