Ophelia-I EV NRF52805

Board Overview

Ophelia-I EV NRF52805

Name:

we_ophelia1ev

Vendor:

Würth Elektronik GmbH.

Architecture:

arm

SoC:

nrf52805

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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

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 board supports the hardware features listed below.

on-chip / on-board

Feature integrated in the SoC / present on the board.

2 / 2

Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.

vnd,foo

Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

we_ophelia1ev

/

nrf52805

we_ophelia1ev/nrf52805 target

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M4 CPU1	arm,cortex-m4
ADC	on-chip	Nordic Semiconductor nRF family SAADC node1	nordic,nrf-saadc
ARM architecture	on-chip	Nordic UICR (User Information Configuration Registers)1	nordic,nrf-uicr
	on-chip	Nordic nRF family BPROT (Block Protection)1	nordic,nrf-bprot
	on-chip	Nordic EGU (Event Generator Unit)2	nordic,nrf-egu
	on-chip	Nordic nRF family SWI (Software Interrupt)4	nordic,nrf-swi
Clock control	on-chip	Nordic nRF clock control node1	nordic,nrf-clock
Counter	on-chip	Nordic nRF timer node3	nordic,nrf-timer
Cryptographic accelerator	on-chip	Nordic ECB (AES electronic codebook mode encryption)1	nordic,nrf-ecb
	on-chip	Nordic nRF family CCM (AES CCM mode encryption)1	nordic,nrf-ccm
Flash controller	on-chip	Nordic NVMC (Non-Volatile Memory Controller)1	nordic,nrf52-flash-controller
GPIO & Headers	on-chip	NRF5 GPIOTE1	nordic,nrf-gpiote
	on-chip	NRF5 GPIO1	nordic,nrf-gpio
I2C	on-chip	Nordic nRF family TWI (TWI master)1	nordic,nrf-twi
Input	on-board	Group of GPIO-bound input keys1	gpio-keys
Interrupt controller	on-chip	ARMv7-M NVIC (Nested Vectored Interrupt Controller)1	arm,v7m-nvic
LED	on-board	Group of GPIO-controlled LEDs1	gpio-leds
Miscellaneous	on-chip	Nordic FICR (Factory Information Configuration Registers)1	nordic,nrf-ficr
	on-chip	Nordic nRF family PPI (Programmable Peripheral Interconnect)1	nordic,nrf-ppi
MTD	on-chip	Flash node1	soc-nv-flash
	on-board	Fixed partitions of a flash (or other non-volatile storage) memory1	fixed-partitions
Networking	on-chip	Nordic nRF family RADIO peripheral1	nordic,nrf-radio
Pin control	on-chip	The nRF pin controller is a singleton node responsible for controlling pin function selection and pin properties1	nordic,nrf-pinctrl
Power management	on-chip	Nordic nRF power control node1	nordic,nrf-power
PWM	on-chip	nRFx S/W PWM1	nordic,nrf-sw-pwm
Regulator	on-chip	Nordic nRF5X regulator (fixed stage of the core supply)1	nordic,nrf5x-regulator
Retained memory	on-chip	Nordic GPREGRET (General Purpose Register Retention) device2	nordic,nrf-gpregret
RNG	on-chip	Nordic nRF family RNG (Random Number Generator)1	nordic,nrf-rng
RTC	on-chip	Nordic nRF RTC (Real-Time Counter)2	nordic,nrf-rtc
Sensors	on-chip	Nordic nRF family TEMP node1	nordic,nrf-temp
	on-chip	Nordic nRF quadrature decoder (QDEC) node1	nordic,nrf-qdec
Serial controller	on-chip	Nordic nRF family UARTE (UART with EasyDMA)1	nordic,nrf-uarte
SPI	on-chip	Nordic nRF family SPI (SPI master)1	nordic,nrf-spi
SRAM	on-chip	Generic on-chip SRAM description1	mmio-sram
Timer	on-chip	ARMv7-M System Tick1	arm,armv7m-systick
Watchdog	on-chip	Nordic nRF family WDT (Watchdog Timer)1	nordic,nrf-wdt

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 we_ophelia1ev/nrf52805 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