| .. _ubx_ninab4_nrf52833: |
| |
| u-blox EVK NINA-B40x |
| #################### |
| |
| Overview |
| ******** |
| |
| The u-blox NINA-B4 Evaluation Kit hardware is a Bluetooth low energy |
| module based on the Nordic Semiconductor nRF52833 ARM Cortex-M4F CPU |
| and has support for the following features: |
| |
| * :abbr:`ADC (Analog to Digital Converter)` |
| * CLOCK |
| * FLASH |
| * :abbr:`GPIO (General Purpose Input Output)` |
| * :abbr:`I2C (Inter-Integrated Circuit)` |
| * :abbr:`MPU (Memory Protection Unit)` |
| * :abbr:`NVIC (Nested Vectored Interrupt Controller)` |
| * :abbr:`PWM (Pulse Width Modulation)` |
| * 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:`USB (Universal Serial Bus)` |
| * :abbr:`WDT (Watchdog Timer)` |
| |
| .. figure:: img/EVK-NINA-B406_Top_web.jpg |
| |
| EVK NINA-B4 |
| |
| More information about the NINA-B4 module and the EVK-NINA-B4 can be |
| found at `NINA-B40 product page`_ and `EVK-NINA-B4 product page`_. |
| |
| Supported Features |
| ================== |
| |
| The ubx_evkninab4_nrf52833 board configuration supports the following |
| hardware features: |
| |
| +-----------+------------+----------------------+ |
| | Interface | Controller | Driver/Component | |
| +===========+============+======================+ |
| | ADC | on-chip | adc | |
| +-----------+------------+----------------------+ |
| | CLOCK | on-chip | clock_control | |
| +-----------+------------+----------------------+ |
| | FLASH | on-chip | flash | |
| +-----------+------------+----------------------+ |
| | GPIO | on-chip | gpio | |
| +-----------+------------+----------------------+ |
| | I2C(M) | on-chip | i2c | |
| +-----------+------------+----------------------+ |
| | MPU | on-chip | arch/arm | |
| +-----------+------------+----------------------+ |
| | NVIC | on-chip | arch/arm | |
| +-----------+------------+----------------------+ |
| | PWM | on-chip | pwm | |
| +-----------+------------+----------------------+ |
| | RADIO | on-chip | Bluetooth low energy | |
| +-----------+------------+----------------------+ |
| | RTC | on-chip | system clock | |
| +-----------+------------+----------------------+ |
| | RTT | Segger | console | |
| +-----------+------------+----------------------+ |
| | SPI(M/S) | on-chip | spi | |
| +-----------+------------+----------------------+ |
| | UART | on-chip | serial | |
| +-----------+------------+----------------------+ |
| | USB | on-chip | usb | |
| +-----------+------------+----------------------+ |
| | WDT | on-chip | watchdog | |
| +-----------+------------+----------------------+ |
| |
| Other hardware features have not been enabled yet for this board. |
| See `EVK-NINA-B4 product page`_ and `NINA-B40 Data Sheet`_ |
| for a complete list of EVK NINA-B4 hardware features. |
| |
| Connections and IOs |
| =================== |
| |
| LED |
| --- |
| |
| * LED0 (red) = P0.13 |
| * LED1 (green) = P1.01 |
| * LED2 (blue) = P1.00 |
| |
| Push buttons |
| ------------ |
| |
| * BUTTON1 = SW1 = P1.01 (Shared with green LED) |
| * BUTTON2 = SW2 = P0.02 |
| |
| General information on module pin numbering |
| ------------------------------------------- |
| |
| The numbering of the pins on the module and EVK do not follow the GPIO |
| numbering on the nRF52833 SoC. Please see the `NINA-B40 Data Sheet`_ for |
| information on how to map NINA-B40 pins to the pin numbering on the |
| nRF52833 SoC. |
| |
| The reason for this is the u-blox module family concept where different |
| modules share the same pinout and can be interchanged, see |
| `NINA module family Nested design`_. |
| |
| Programming and Debugging |
| ************************* |
| |
| Applications for the ``ubx_evkninab4_nrf52833`` board configuration can be |
| built and flashed in the usual way (see :ref:`build_an_application` |
| and :ref:`application_run` for more details); however, the standard |
| debugging targets are not currently available. |
| |
| Flashing |
| ======== |
| |
| 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. |
| |
| Open a terminal program to the USB Serial Port installed when connecting |
| the board and listen for output. |
| |
| Settings: 115200, 8N1, no flow control. |
| |
| Then build and flash the application in the usual way. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/hello_world |
| :board: ubx_evknina4_nrf52833 |
| :goals: build flash |
| |
| Debugging |
| ========= |
| |
| Refer to the :ref:`nordic_segger` page to learn about debugging boards |
| containing a Nordic Semiconductor chip with a Segger IC. |
| |
| |
| Testing the LEDs and buttons in the EVK NINA-B40x |
| ************************************************* |
| |
| 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/arm/ubx_evkninab4_nrf52833/ubx_evkninab4_nrf52833.dts`. |
| |
| Note that the buttons on the EVK-NINA-B4 are marked SW1 and SW2, which |
| are named sw0 and sw1 in the dts file. |
| Also note that the SW1 button and the green LED are connected on HW level. |
| |
| Using UART1 |
| *********** |
| |
| The following approach can be used when an application needs to use |
| more than one UART for connecting peripheral devices: |
| |
| 1. Add device tree overlay file to the main directory of your application: |
| |
| .. code-block:: devicetree |
| |
| &pinctrl { |
| uart1_default: uart1_default { |
| group1 { |
| psels = <NRF_PSEL(UART_TX, 0, 14)>, |
| <NRF_PSEL(UART_RX, 0, 16)>; |
| }; |
| }; |
| /* required if CONFIG_PM_DEVICE=y */ |
| uart1_sleep: uart1_sleep { |
| group1 { |
| psels = <NRF_PSEL(UART_TX, 0, 14)>, |
| <NRF_PSEL(UART_RX, 0, 16)>; |
| low-power-enable; |
| }; |
| }; |
| }; |
| |
| &uart1 { |
| compatible = "nordic,nrf-uarte"; |
| current-speed = <115200>; |
| status = "okay"; |
| pinctrl-0 = <&uart1_default>; |
| pinctrl-1 = <&uart1_sleep>; |
| pinctrl-names = "default", "sleep"; |
| }; |
| |
| In the overlay file above, pin P0.16 is used for RX and P0.14 is used for TX |
| |
| 2. Use the UART1 as ``DEVICE_DT_GET(DT_NODELABEL(uart1))`` |
| |
| Overlay file naming |
| =================== |
| |
| The file has to be named ``<board>.overlay`` and placed in the app main directory to be |
| picked up automatically by the device tree compiler. |
| |
| Selecting the pins |
| ================== |
| |
| Pins can be configured in the board pinctrl file. To see the available mappings, |
| open the data sheet for the NINA-B4 at `NINA-B40 Data Sheet`_, Section 3 'Pin definition'. |
| In the table 7 select the pins marked 'GPIO_xx'. Note that pins marked as 'Radio sensitive pin' |
| can only be used in under-10KHz applications. They are not suitable for 115200 speed of UART. |
| |
| .. note: |
| Pins are defined according to the "nRF52" pin number, not the module pad number. |
| |
| |
| References |
| ********** |
| |
| .. target-notes:: |
| |
| .. _NINA-B40 product page: https://www.u-blox.com/en/product/nina-b40-series-open-cpu |
| .. _EVK-NINA-B4 product page: https://www.u-blox.com/en/product/evk-nina-b4 |
| .. _Nordic Semiconductor Infocenter: https://infocenter.nordicsemi.com |
| .. _J-Link Software and documentation pack: https://www.segger.com/jlink-software.html |
| .. _NINA-B40 Data Sheet: https://www.u-blox.com/en/docs/UBX-19049405 |
| .. _NINA module family Nested design: https://www.u-blox.com/en/docs/UBX-17065600 |