Ophelia-IV DK
Overview
Note
You can find more information about the nRF54L15 SoC on the nRF54L15 website [1]. For the nRF54L15 technical documentation and other resources (such as SoC Datasheet), see the nRF54L15 documentation [2] page.
The OPHELIA-IV EV board is an evaluation board of the Ophelia-IV radio module.
Hardware
The Ophelia-IV 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 ophelia4ev 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.
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M33F CPU1 |
|
ADC |
on-chip |
Nordic Semiconductor nRF family SAADC node1 |
|
ARM architecture |
on-chip |
Nordic UICR (User Information Configuration Registers)1 |
|
on-chip |
Nordic EGU (Event Generator Unit)2 |
||
Audio |
on-chip |
Nordic PDM (Pulse Density Modulation interface)2 |
|
Clock control |
on-chip |
Generic fixed-rate clock provider2 |
|
on-chip |
Nordic nRF low-frequency crystal oscillator1 |
||
on-chip |
Nordic nRF high-frequency crystal oscillator1 |
||
on-chip |
Nordic nRF clock control node1 |
||
Comparator |
on-chip |
Nordic nRF COMP (analog COMParator)1 |
|
Counter |
on-chip |
Nordic nRF timer node7 |
|
Debug |
on-chip |
ARMv8 instrumentation trace macrocell1 |
|
Flash controller |
on-chip |
Nordic RRAMC (Resistive random access memory controller)1 |
|
GPIO & Headers |
on-chip |
NRF5 GPIO3 |
|
on-chip |
NRF5 GPIOTE2 |
||
I2C |
on-chip |
Nordic nRF family TWIM (TWI master with EasyDMA)4 |
|
I2S |
on-chip |
Nordic I2S (Inter-IC sound interface)1 |
|
IEEE 802.15.4 |
on-chip |
Nordic nRF IEEE 802.15.4 node1 |
|
Input |
on-board |
Group of GPIO-bound input keys1 |
|
Interrupt controller |
on-chip |
ARMv8-M NVIC (Nested Vectored Interrupt Controller)1 |
|
LED |
on-board |
Group of GPIO-controlled LEDs1 |
|
on-board |
Group of PWM-controlled LEDs1 |
||
Mailbox |
on-chip |
Nordic VEVIF (VPR Event Interface) - EVENT RX MODE1 |
|
on-chip |
Nordic VEVIF (VPR Event Interface) - TASK TX MODE1 |
||
Miscellaneous |
on-chip |
Nordic FICR (Factory Information Configuration Registers)1 |
|
on-chip |
Nordic DPPIC (Distributed Programmable Peripheral Interconnect Controller)4 |
||
on-chip |
Nordic PPIB (Programmable Peripheral Interconnect Bridge)8 |
||
on-chip |
Nordic Memory Privilege Controller (MPC)1 |
||
MTD |
on-board |
Properties supporting Zephyr spi-nor flash driver (over the Zephyr SPI API) control of serial flash memories using the standard M25P80-based command set1 |
|
on-chip |
Flash node1 |
||
on-board |
Fixed partitions of a flash (or other non-volatile storage) memory1 |
||
Networking |
on-chip |
Nordic nRF family RADIO peripheral1 |
|
on-chip |
Nordic nRF family NFCT (Near Field Communication Tag)1 |
||
Pin control |
on-chip |
The nRF pin controller is a singleton node responsible for controlling pin function selection and pin properties1 |
|
Power management |
on-chip |
Nordic nRF power control node1 |
|
PWM |
on-chip |
||
Regulator |
on-chip |
Nordic REGULATORS (voltage regulators control module) on nRF54L1 |
|
on-chip |
Nordic nRF5X regulator (fixed stage of the core supply)1 |
||
Retained memory |
on-chip |
Nordic GPREGRET (General Purpose Register Retention) device2 |
|
RISC-V architecture |
on-chip |
VPR coprocessor1 |
|
RNG |
on-chip |
Nordic nRF CRACEN CTR_DRBG based (Random Number Generator)1 |
|
Sensors |
on-chip |
Nordic nRF family TEMP node1 |
|
on-chip |
Nordic nRF quadrature decoder (QDEC) node2 |
||
Serial controller |
on-chip |
||
SPI |
on-chip |
||
SRAM |
on-chip |
Generic on-chip SRAM1 |
|
Timer |
on-chip |
Nordic GRTC (Global RTC)1 |
|
on-chip |
ARMv8-M System Tick1 |
||
Watchdog |
on-chip |
Nordic nRF family WDT (Watchdog Timer)2 |
Programming and Debugging
The ophelia4ev board supports the runners and associated west commands listed below.
| flash | debug | debugserver | attach | rtt | |
|---|---|---|---|---|---|
| jlink | ✅ | ✅ (default) | ✅ | ✅ | ✅ |
| nrfutil | ✅ (default) |
Applications for the ophelia4ev/nrf54l15/cpuapp board target can be
built, flashed, and debugged in the usual way. See
Building an Application and Run an Application for more details on
building and running.
Applications for the ophelia4ev/nrf54l15/cpuflpr board target need
to be built using sysbuild to include the vpr_launcher image for the application core.
Enter the following command to compile hello_world for the FLPR core:
west build -p -b ophelia4ev/nrf54l15/cpuflpr --sysbuild
Flashing
As an example, this section shows how to build and flash the Hello World application.
To build and program the sample to the OPHELIA-IV EV, complete the following steps:
First, connect the OPHELIA-IV EV to you computer using the USB port on the board. Then connect a segger flasher to the SWD connector available on the board. Next, build the sample by running the following command:
# From the root of the zephyr repository
west build -b ophelia4ev/nrf54l15/cpuapp samples/hello_world
west flash
Warning
When programming the device, you might get an error similar to the following message:
ERROR: The operation attempted is unavailable due to readback protection in
ERROR: your device. Please use --recover to unlock the device.
This error occurs when readback protection is enabled. To disable the readback protection, you must recover your device.
Enter the following command to recover the core:
west flash --recover
The --recover command erases the flash memory and then writes a small binary into
the recovered flash memory.
This binary prevents the readback protection from enabling itself again after a pin
reset or power cycle.
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.