EC4L15BA1-EVB

Overview

The EC4L15BA1 Evaluation board is a development board based on the EC4L15BA1 module. It uses the Nordic Semiconductor nRF54L15 SoC solution. The idea is to connect the module’s pins to a 2.54mm pin header. It can easily open the verification module functions and connect with other peripheral devices and sensor pins, making it a useful tool for early software development.

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.

Hardware

The EC4L15BA1-EVB has two crystal oscillators:

  • High-frequency 32 MHz crystal oscillator (HFXO)

  • Low-frequency 32.768 kHz crystal oscillator (LFXO)

  • Module Evaluation Board built by EC4L15BA1

  • Nordic nRF54L15 SoC Solution

  • Intended for the Bluetooth Core 6.0

  • Intended for FCC, ISEC, Telec

  • 128 MHz ARM® Cortex™-M33 processor with TrustZone® technology

  • 128 MHz RISC-V coprocessor with TrustZone® technology

  • 1.5MB Flash Memory / 256KB RAM

  • RoHS & Reach Compliant.

  • 29 GPIO

  • Pattern Antenna

  • Interfaces: SPI, UART, I2C, I2S, PDM, PWM, ADC, and NFC

  • Highly flexible multiprotocol SoC ideally suited for Bluetooth® Low Energy, ANT+, Zigbee, Thread (802.15.4), and Matter ultra low-power wireless applications.

Supported Features

The ec4l15ba1 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.

Connections and IOs

UART

  • TX = P1.04

  • RX = P1.05

  • RTS = P1.06

  • CTS = P1.07

Programming and Debugging

The ec4l15ba1 board supports the runners and associated west commands listed below.

flash debug

Applications for the ec4l15ba1/nrf54l15/cpuapp board 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.

Note

The EC4L15BA1-EVB board does not have an on-board J-Link debug IC; Use the connector of the J-Link Debugger to connect to the SWD connector, and use SEGGER J-Link to debug.

Flashing

As an example, this section shows how to build and flash the Hello World application.

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.

To build and program the sample to the EC4L15BA1-EVB, complete the following steps:

First, connect the EC4L15BA1-EVB’s USB mini-B connector to you computer. Then run your favorite terminal program to listen for output.

$ minicom -D <tty_device> -b 115200

Replace <tty_device> with the port where the USB can be found. For example, under Linux, /dev/ttyUSB0.

Next, build the sample by running the following command:

# From the root of the zephyr repository
west build -b ec4l15ba1/nrf54l15/cpuapp samples/hello_world
west flash

References