This is the documentation for the latest (master) 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.

NXP LPCXPRESSO54114

Overview

The LPCXpresso54114 board has been developed by NXP to enable evaluation of and prototyping with the low-power LPC54110 family of MCUs. LPCXpresso* is a low-cost development platform available from NXP supporting NXP’s ARM-based microcontrollers. LPCXpresso is an end-to-end solution enabling embedded engineers to develop their applications from initial evaluation to final production.

LPCXPRESSO54114

Hardware

  • LPC54114 dual-core (M4F and dual M0) MCU running at up to 100 MHz

  • On-board high-speed USB based debug probe with CMSIS-DAP and J-Link protocol support, can debug the on-board LPC54114 or an external target

  • External debug probe option

  • Tri-color LED, target Reset, ISP & interrupt/user buttons for easy testing of software functionality

  • Expansion options based on Arduino UNO and Pmod™, plus additional expansion port pins

  • On-board 1.8 V and 3.3 V regulators plus external power supply option

  • 8 Mb Macronix MX25R SPI flash

  • Built-in MCU power consumption and supply voltage measurement

  • UART, I²C and SPI port bridging from LPC54114 target to USB via the on-board debug probe

  • FTDI UART connector

For more information about the LPC54114 SoC and LPCXPRESSO54114 board:

Supported Features

The lpcxpresso54114 board configuration supports the following hardware features:

Interface

Controller

Driver/Component

NVIC

on-chip

nested vector interrupt controller

SYSTICK

on-chip

systick

IOCON

on-chip

pinmux

GPIO

on-chip

gpio

I2C

on-chip

i2c

SPI

on-chip

spi

USART

on-chip

serial port-polling

CLOCK

on-chip

clock_control

The default configuration for each core can be found in the defconfig files:

boards/arm/lpcxpresso54114/lpcxpresso54114_m4_defconfig boards/arm/lpcxpresso54114/lpcxpresso54114_m0_defconfig

Other hardware features are not currently supported by the port.

Connections and IOs

The LPC54114 SoC has IOCON registers, which can be used to configure the functionality of a pin.

Name

Function

Usage

PIO0_0

USART

USART RX

PIO0_1

USART

USART TX

PIO0_18

SPI

SPI MISO

PIO0_19

SPI

SPI SCK

PIO0_20

SPI

SPI MOSI

PIO0_25

I2C

I2C SCL

PIO0_26

I2C

I2C SDA

PIO0_29

GPIO

RED LED

PIO1_1

SPI

SPI SSEL2

PIO1_9

GPIO

BLUE_LED

PIO1_10

GPIO

GREEN LED

System Clock

The LPC54114 SoC is configured to use the internal FRO at 48MHz as a source for the system clock. Other sources for the system clock are provided in the SOC, depending on your system requirements.

Serial Port

The LPC54114 SoC has 8 FLEXCOMM interfaces for serial communication. One is configured as USART for the console and the remaining are not used.

Programming and Debugging

Build and flash applications as usual (see Building an Application and Run an Application for more details).

Configuring a Debug Probe

A debug probe is used for both flashing and debugging the board. This board is configured by default to use the LPC-Link2 CMSIS-DAP Onboard Debug Probe, however the pyOCD Debug Host Tools do not support this probe so you must reconfigure the board for one of the following debug probes instead.

Configuring a Console

Regardless of your choice in debug probe, we will use the LPC-Link2 microcontroller as a usb-to-serial adapter for the serial console.

Connect a USB cable from your PC to J5

Use the following settings with your serial terminal of choice (minicom, putty, etc.):

  • Speed: 115200

  • Data: 8 bits

  • Parity: None

  • Stop bits: 1

Flashing

Here is an example for the Hello World application.

# From the root of the zephyr repository
west build -b lpcxpresso54114_m4 samples/hello_world
west flash

Open a serial terminal, reset the board (press the SW4 button), and you should see the following message in the terminal:

***** Booting Zephyr OS v1.14.0-rc1 *****
Hello World! lpcxpresso54114_m4

Debugging

Here is an example for the Hello World application.

# From the root of the zephyr repository
west build -b lpcxpresso54114_m4 samples/hello_world
west debug

Open a serial terminal, step through the application in your debugger, and you should see the following message in the terminal:

***** Booting Zephyr OS v1.14.0-rc1 *****
Hello World! lpcxpresso54114_m4