boards/ebyte/e73_tbb/doc/index.rst
.. zephyr:board:: ebyte_e73_tbb
Overview
The EBYTE E73-TBB hardware provides support for the Nordic Semiconductor nRF52832 ARM Cortex-M4F CPU and the following devices:
ADC (Analog to Digital Converter)GPIO (General Purpose Input Output)I2C (Inter-Integrated Circuit)MPU (Memory Protection Unit)NVIC (Nested Vectored Interrupt Controller)PWM (Pulse Width Modulation)RTC (nRF RTC System Clock)SPI (Serial Peripheral Interface)UART (Universal asynchronous receiver-transmitter)WDT (Watchdog Timer)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.
.. zephyr:board-supported-hw::
See E73-TBB website_ and Nordic Semiconductor Infocenter_
for a complete list of nRF52832 hardware features.
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
.. zephyr:board-supported-runners::
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/basic/blinky :board: ebyte_e73_tbb/nrf52832 :goals: build flash
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
:zephyr:code-sample:blinky
:zephyr:code-sample: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/ebyte/e73_tbb/ebyte_e73_tbb_nrf52832.dts.
References
.. target-notes::
.. _E73-TBB website: https://www.cdebyte.com/products/E73-TBB .. _Nordic Semiconductor Infocenter: https://infocenter.nordicsemi.com