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Overview

boards/nxp/lpcxpresso54114/doc/index.rst

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.. zephyr:board:: 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.

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:

  • LPC54114 SoC Website_
  • LPC54114 Datasheet_
  • LPC54114 Reference Manual_
  • LPCXPRESSO54114 Website_
  • LPCXPRESSO54114 User Guide_
  • LPCXPRESSO54114 Schematics_

Supported Features

.. zephyr:board-supported-hw::

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

.. zephyr:board-supported-runners::

Build and flash applications as usual (see :ref:build_an_application and :ref:application_run 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 :ref:pyocd-debug-host-tools do not support this probe so you must reconfigure the board for one of the following debug probes instead.

:ref:lpclink2-jlink-onboard-debug-probe

Install the :ref:jlink-debug-host-tools and make sure they are in your search path.

Follow the instructions in :ref:lpclink2-jlink-onboard-debug-probe to program the J-Link firmware.

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 :zephyr:code-sample:hello_world application.

.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: lpcxpresso54114/lpc54114/m4 :goals: flash

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

.. code-block:: console

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

Debugging

Here is an example for the :zephyr:code-sample:hello_world application.

.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: lpcxpresso54114/lpc54114/m4 :goals: debug

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

.. code-block:: console

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

.. include:: ../../common/board-footer.rst.inc

.. _LPC54114 SoC Website: https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/lpc-cortex-m-mcus/lpc54000-series-cortex-m4-mcus/low-power-microcontrollers-mcus-based-on-arm-cortex-m4-cores-with-optional-cortex-m0-plus-co-processor:LPC541XX

.. _LPC54114 Datasheet: https://www.nxp.com/docs/en/data-sheet/LPC5411X.pdf

.. _LPC54114 Reference Manual: https://www.nxp.com/webapp/Download?colCode=UM10914

.. _LPCXPRESSO54114 Website: https://www.nxp.com/support/developer-resources/evaluation-and-development-boards/lpcxpresso-boards/lpcxpresso54114-board:OM13089

.. _LPCXPRESSO54114 User Guide: https://www.nxp.com/webapp/Download?colCode=UM10973

.. _LPCXPRESSO54114 Schematics: https://www.nxp.com/downloads/en/design-support/LPCX5411x_Schematic_Rev_A1.pdf