ContextQMD
Back to Zephyr

u-blox EVK-BMD-30/35: BMD-300-EVAL, BMD-301-EVAL, and BMD-350-EVAL

boards/u-blox/ubx_bmd300eval/doc/index.rst

4.4.011.1 KB
Original Source

.. zephyr:board:: ubx_bmd300eval

u-blox EVK-BMD-30/35: BMD-300-EVAL, BMD-301-EVAL, and BMD-350-EVAL ##################################################################

Overview

The BMD-300-EVAL, BMD-301-EVAL, and BMD-350-EVAL hardware provides support for the u-blox BMD-300, BMD-301, and BMD-350 Bluetooth 5 modules, based on 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/BMD-30-33-35-36-EVAL.jpg :align: center :alt: BMD-300-EVAL

BMD-300-EVAL (Credit: u-blox AG)

.. note:: The BMD-300-EVAL, BMD-301-EVAL, and BMD-350-EVAL share the same pin headers and assignments. The boards are different only in the module used on the board. The BMD-300 and BMD-301 modules share the same footprint and differ only in the antenna. The BMD-350 module utilizes the nRF52832 CIAA WLCSP package.

More information about the BMD-300-EVAL, BMD-301-EVAL, and BMD-350-EVAL and the respective modules can be found at the u-blox website_. All of the Nordic Semiconductor examples for the nRF52 DK (nrf52dk_nrf52832) may be used without modification.

Hardware

The BMD-300/301/350 module on the board contains an internal high-frequency oscillator at 32MHz. There is also a low frequency (slow) oscillator of 32.768kHz. The module itself does not include the slow crystal; however, the EVAL boards do.

.. note:: When targeting a custom design without a slow crystal, be sure to modify code to utilize the internal RC oscillator for the slow clock.

Supported Features

.. zephyr:board-supported-hw::

Connections and IOs

LED

  • LED1 (red) = P0.17
  • LED2 (red) = P0.18
  • LED3 (green) = P0.19
  • LED4 (green) = P0.20
  • D5 (red) = OB LED 1
  • D6 (green) = OB LED 2

Push buttons

  • BUTTON1 = SW1 = P0.13
  • BUTTON2 = SW2 = P0.14
  • BUTTON3 = SW3 = P0.15
  • BUTTON4 = SW4 = P0.16
  • BOOT = SW5 = boot/reset

External Connectors

.. figure:: img/bmd-300-eval_pin_out.jpg :align: center :alt: BMD-300-EVAL pin-out

BMD-300-EVAL pin-out (Credit: u-blox AG)

.. note:: The BMD-300-EVAL, BMD-301-EVAL, and BMD-350-EVAL share the same pin headers and assignments. The BMD-300-EVAL is shown here.

.. note:: The pin numbers noted below are referenced to the pin 1 markings on the BMD-300/301/350-EVAL for each header

J-Link Prog Connector (J2)

+-------+--------------+ | PIN # | Signal Name | +=======+==============+ | 1 | VDD | +-------+--------------+ | 2 | IMCU_TMSS | +-------+--------------+ | 3 | GND | +-------+--------------+ | 4 | IMCU_TCKS | +-------+--------------+ | 5 | V5V | +-------+--------------+ | 6 | IMCU_TDOS | +-------+--------------+ | 7 | Cut off | +-------+--------------+ | 8 | IMCU_TDIS | +-------+--------------+ | 9 | Cut off | +-------+--------------+ | 10 | IMCU_RESET | +-------+--------------+

Debug OUT (J3)

+-------+----------------+ | PIN # | Signal Name | +=======+================+ | 1 | EXT_VTG | +-------+----------------+ | 2 | EXT_SWDIO | +-------+----------------+ | 3 | GND | +-------+----------------+ | 4 | EXT_SWDCLK | +-------+----------------+ | 5 | GND | +-------+----------------+ | 6 | EXT_SWO | +-------+----------------+ | 7 | N/C | +-------+----------------+ | 8 | N/C | +-------+----------------+ | 9 | EXT_GND_DETECT | +-------+----------------+ | 10 | EXT_RESET | +-------+----------------+

Auxiliary (J9)

+-------+----------------+ | PIN # | Signal Name | +=======+================+ | 1 | P0.10 | +-------+----------------+ | 2 | P0.09 | +-------+----------------+ | 3 | P0.08 | +-------+----------------+ | 4 | P0.07 | +-------+----------------+ | 5 | P0.06 | +-------+----------------+ | 6 | P0.05 / AIN3 | +-------+----------------+ | 7 | P0.21 / RESET | +-------+----------------+ | 8 | P0.01 / XL2 | +-------+----------------+ | 9 | P0.00 / XL1 | +-------+----------------+ | 10 | GND | +-------+----------------+

Arduino Headers

Power (J5)

+-------+--------------+---------------------------+ | PIN # | Signal Name | BMD-300/301/350 Functions | +=======+==============+===========================+ | 1 | VSHLD | N/A | +-------+--------------+---------------------------+ | 2 | VSHLD | N/A | +-------+--------------+---------------------------+ | 3 | RESET | P0.21 / RESET | +-------+--------------+---------------------------+ | 4 | VSHLD | N/A | +-------+--------------+---------------------------+ | 5 | V5V | N/A | +-------+--------------+---------------------------+ | 6 | GND | N/A | +-------+--------------+---------------------------+ | 7 | GND | N/A | +-------+--------------+---------------------------+ | 8 | N/C | N/A | +-------+--------------+---------------------------+

Analog in (J8)

+-------+--------------+---------------------------+ | PIN # | Signal Name | BMD-300/301/350 Functions | +=======+==============+===========================+ | 1 | A0 | P0.03 / AIN1 | +-------+--------------+---------------------------+ | 2 | A1 | P0.04 / AIN2 | +-------+--------------+---------------------------+ | 3 | A2 | P0.28 / AIN4 | +-------+--------------+---------------------------+ | 4 | A3 | P0.29 / AIN5 | +-------+--------------+---------------------------+ | 5 | A4 | P0.30 / AIN6 | +-------+--------------+---------------------------+ | 6 | A5 | P0.31 / AIN7 | +-------+--------------+---------------------------+

Digital I/O (J7)

+-------+--------------+---------------------------+ | PIN # | Signal Name | BMD-300/301/350 Functions | +=======+==============+===========================+ | 1 | D7 | P0.18/TRACEDATA[0]/SWO | +-------+--------------+---------------------------+ | 2 | D6 | P0.17 | +-------+--------------+---------------------------+ | 3 | D5 | P0.16/TRACEDATA[1] | +-------+--------------+---------------------------+ | 4 | D4 | P0.15/TRACEDATA[2] | +-------+--------------+---------------------------+ | 5 | D3 | P0.14/TRACEDATA[3] | +-------+--------------+---------------------------+ | 6 | D2 | P0.13 | +-------+--------------+---------------------------+ | 7 | D1 (TX) | P0.12 | +-------+--------------+---------------------------+ | 8 | D0 (RX) | P0.11 | +-------+--------------+---------------------------+

Digital I/O (J6)

+-------+--------------+---------------------------+ | PIN # | Signal Name | BMD-300/301/350 Functions | +=======+==============+===========================+ | 1 | SCL | P0.27 | +-------+--------------+---------------------------+ | 2 | SDA | P0.26 | +-------+--------------+---------------------------+ | 3 | AREF | P0.02/AIN0 | +-------+--------------+---------------------------+ | 4 | GND | N/A | +-------+--------------+---------------------------+ | 5 | D13 (SCK) | P0.25 | +-------+--------------+---------------------------+ | 6 | D12 (MISO) | P0.24 | +-------+--------------+---------------------------+ | 7 | D11 (MOSI) | P0.23 | +-------+--------------+---------------------------+ | 8 | D10 (SS) | P0.22 | +-------+--------------+---------------------------+ | 9 | D9 | P0.20/TRACECLK | +-------+--------------+---------------------------+ | 10 | D8 | P0.19 | +-------+--------------+---------------------------+

J11

+-------+--------------+---------------------------+ | PIN # | Signal Name | BMD-300/301/350 Functions | +=======+==============+===========================+ | 1 | D12 (MISO) | P0.24 | +-------+--------------+---------------------------+ | 2 | V5V | N/A | +-------+--------------+---------------------------+ | 3 | D13 (SCK) | P0.25 | +-------+--------------+---------------------------+ | 4 | D11 (MOSI) | P0.23 | +-------+--------------+---------------------------+ | 5 | RESET | N/A | +-------+--------------+---------------------------+ | 6 | N/A | N/A | +-------+--------------+---------------------------+

Programming and Debugging

Flashing

Follow the instructions in the :ref:nordic_segger page to install and configure all the necessary software. Further information can be found in :ref:nordic_segger_flashing. Then build and flash applications as usual (see :ref:build_an_application and :ref:application_run for more details).

Here is an example for the :zephyr:code-sample:hello_world application.

First, run your favorite terminal program to listen for output.

.. code-block:: console

$ minicom -D <tty_device> -b 115200

Replace :code:<tty_device> with the port where the BMD-300/301/350-EVAL can be found. For example, under Linux, :code:/dev/ttyACM0.

Then build and flash the application in the usual way.

.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: ubx_bmd300eval/nrf52832 :goals: build flash

Debugging

Refer to the :ref:nordic_segger page to learn about debugging u-blox boards with a Segger J-LINK-OB IC.

Testing the LEDs and buttons in the BMD-330-EVAL

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/u-blox/ubx_bmd300eval/ubx_bmd300eval_nrf52832.dts.

References

.. target-notes::

.. _u-blox website: https://www.u-blox.com/en/product/bmd-3035-series-open-cpu