This is the documentation for the latest (main) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

Ophelia-I EV NRF52805

Overview

The we_ophelia1ev_nrf52805 board is an evaluation board of the Ophelia-I radio module. It provides support for the Nordic Semiconductor nRF52805 ARM CPU and the following devices:

  • CLOCK

  • FLASH

  • GPIO

  • I2C

  • NVIC

  • RADIO (Bluetooth Low Energy)

  • RTC

  • Segger RTT (RTT Console)

  • SPI

  • UART

  • WDT

Ophelia-I EV

Fig. 190 Ophelia-I EV (Credit: Würth Elektronik)

Hardware

The Ophelia-I uses the internal low frequency RC oscillator and provides the so called smart antenna connection, that allows to choose between the module’s integrated PCB antenna and an external antenna that can be connected to the available SMA connector.

Supported Features

The we_ophelia1ev_nrf52805 board configuration supports the following hardware features:

Interface

Controller

Driver/Component

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

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

Programming and Debugging

Flashing

Follow the instructions in the Nordic nRF5x Segger J-Link page to install and configure all the necessary software. Further information can be found in Flashing. Then build and flash applications as usual (see Building an Application and Run an Application for more details).

Here is an example for the Hello World application.

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

$ minicom -D <tty_device> -b 115200

Replace <tty_device> with the port where the board nRF52 DK can be found. For example, under Linux, /dev/ttyACM0.

Then build and flash the application in the usual way.

# From the root of the zephyr repository
west build -b nrf52dk_nrf52832 samples/hello_world
west flash

Debugging

Refer to the Nordic nRF5x Segger J-Link page to learn about debugging Nordic boards with a Segger IC.

References