| .. _ebyte_e73_tbb_nrf52832: |
| |
| EBYTE E73-TBB |
| ############# |
| |
| Overview |
| ******** |
| |
| The EBYTE E73-TBB hardware provides |
| support for the Nordic Semiconductor nRF52832 ARM Cortex-M4F 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:`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:`WDT (Watchdog Timer)` |
| |
| .. figure:: img/ebyte_e73_tbb_nrf52832.jpg |
| :align: center |
| :alt: EBYTE E73-TBB |
| |
| EBYTE E73-TBB (Credit: EBYTE) |
| |
| More information about the board can be found at the |
| `E73-TBB website`_. The `Nordic Semiconductor Infocenter`_ |
| contains the processor's information and the datasheet. |
| |
| |
| Hardware |
| ******** |
| |
| E73-TBB has two external oscillators. The frequency of |
| the slow clock is 32.768 kHz. The frequency of the main clock |
| is 32 MHz. Additionally the board features CH340 USB-UART converter. |
| It is possible to connect external BT antenna using U.FL socket |
| and solder NFC antenna using NFC_ANT connector. |
| |
| Supported Features |
| ================== |
| |
| The ebyte_e73_tbb_nrf52832 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 | |
| +-----------+------------+----------------------+ |
| | RTC | on-chip | system clock | |
| +-----------+------------+----------------------+ |
| | RTT | Segger | console | |
| +-----------+------------+----------------------+ |
| | SPI(M/S) | on-chip | spi | |
| +-----------+------------+----------------------+ |
| | UART | on-chip | serial | |
| +-----------+------------+----------------------+ |
| | WDT | on-chip | watchdog | |
| +-----------+------------+----------------------+ |
| |
| Other hardware features are not supported by the Zephyr kernel. |
| See `E73-TBB website`_ and `Nordic Semiconductor Infocenter`_ |
| for a complete list of nRF52832 hardware features. |
| |
| Connections and IOs |
| =================== |
| |
| LED |
| --- |
| |
| * LED0 (red) = P0.17 |
| * LED1 (red) = P0.18 |
| |
| Push buttons |
| ------------ |
| |
| * BUTTON0 = SW1 = P0.14 |
| * BUTTON1 = SW2 = P0.13 |
| |
| External Connectors |
| ------------------- |
| |
| P1 Header |
| |
| +-------+--------------+ |
| | PIN # | Signal Name | |
| +=======+==============+ |
| | 1 | GND | |
| +-------+--------------+ |
| | 2 | 3.3V | |
| +-------+--------------+ |
| | 3 | P0.04 | |
| +-------+--------------+ |
| | 4 | P0.03 | |
| +-------+--------------+ |
| | 5 | P0.02 | |
| +-------+--------------+ |
| | 6 | P0.31 | |
| +-------+--------------+ |
| | 7 | P0.30 | |
| +-------+--------------+ |
| | 8 | P0.29 | |
| +-------+--------------+ |
| | 9 | P0.28 | |
| +-------+--------------+ |
| | 10 | P0.27 | |
| +-------+--------------+ |
| | 11 | P0.26 | |
| +-------+--------------+ |
| | 12 | P0.25 | |
| +-------+--------------+ |
| |
| P2 Header |
| |
| +-------+--------------+ |
| | PIN # | Signal Name | |
| +=======+==============+ |
| | 1 | P0.24 | |
| +-------+--------------+ |
| | 2 | P0.23 | |
| +-------+--------------+ |
| | 3 | P0.22 | |
| +-------+--------------+ |
| | 4 | SWDIO | |
| +-------+--------------+ |
| | 5 | SWDCLK | |
| +-------+--------------+ |
| | 6 | P0.21/RST | |
| +-------+--------------+ |
| | 7 | P0.20 | |
| +-------+--------------+ |
| | 8 | P0.19 | |
| +-------+--------------+ |
| | 9 | P0.16 | |
| +-------+--------------+ |
| | 10 | P0.15 | |
| +-------+--------------+ |
| | 11 | P0.12 | |
| +-------+--------------+ |
| | 12 | P0.11 | |
| +-------+--------------+ |
| |
| NFC_ANT |
| |
| +-------+--------------+ |
| | PIN # | Signal Name | |
| +=======+==============+ |
| | 1 | P0.10 | |
| +-------+--------------+ |
| | 2 | P0.09 | |
| +-------+--------------+ |
| |
| Programming and Debugging |
| ************************* |
| |
| Flashing |
| ======== |
| |
| Follow the instructions in the :ref:`nordic_segger` page to install |
| and configure all the necessary software. |
| To flash the board connect pins: SWDIO, SWDCLK, RST, GND from E73-TBB |
| to corresponding pins on your J-Link device, then build and flash the application in the usual way. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/blinky |
| :board: ebyte_e73_tbb_nrf52832 |
| :goals: build flash |
| |
| Debugging |
| ========= |
| |
| Refer to the :ref:`nordic_segger` page to learn about debugging Nordic chips with a |
| Segger IC. |
| |
| |
| Testing the LEDs and buttons in the E73-TBB |
| ******************************************* |
| |
| 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 |
| |
| :ref:`blinky-sample` |
| :ref:`button-sample` |
| |
| 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/ebyte_e73_tbb_nrf52832/ebyte_e73_tbb_nrf52832.dts`. |
| |
| References |
| ********** |
| |
| .. target-notes:: |
| |
| .. _E73-TBB website: https://www.ebyte.com/en/product-view-news.html?id=889 |
| .. _Nordic Semiconductor Infocenter: https://infocenter.nordicsemi.com |