.. _lpcxpresso54114:

NXP LPCXPRESSO54114
###################

Overview
********

The LPCXpresso54114 board has been developed by NXP to enable evaluation of and
prototyping with the LPC54110 family of MCUs and 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.

.. image:: ./lpcxpresso54114_m4.png
   :width: 720px
   :align: center
   :alt: 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:

- `LPC54114 SoC Website`_
- `LPC54114 Datasheet`_
- `LPC54114 Reference Manual`_
- `LPCXPRESSO54114 Website`_
- `LPCXPRESSO54114 User Guide`_
- `LPCXPRESSO54114 Schematics`_

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                                |
+-----------+------------+-------------------------------------+
| USART     | on-chip    | serial port-polling                 |
+-----------+------------+-------------------------------------+

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_29 | GPIO            | RED LED                    |
+---------+-----------------+----------------------------+
| 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
*************************

The LPCXpresso54114 includes the LPC-Link2 serial and debug adapter built into
the board to provide debugging, flash programming, and serial communication
over USB. LPC-Link2 can be configured with Segger J-Link or CMSIS-DAP firmware
variants to support corresponding debug tools. Currently only the Segger J-Link
tools are supported for this board in Zephyr, therefore you should use the
Segger J-Link firmware variant.

Before you start using Zephyr on the LPCXpresso54114, download and run
`LPCScrypt`_ to update the LPC-Link2 firmware to the latest version, currently
``Firmware_JLink_LPC-Link2_20160923.bin``. Serial communication problems, such
as dropping characters, have been observed with older versions of the firmware.

Debugging
=========

You can debug an application in the usual way. Here is an example for the
:ref:`hello_world` application.

.. zephyr-app-commands::
   :zephyr-app: samples/hello_world
   :board: lpcxpresso54114_m4
   :goals: debug

Open a serial terminal (minicom, putty, etc.) and connect the board with the
following settings:

- Speed: 115200
- Data: 8 bits
- Parity: None
- Stop bits: 1

Reset the board and the following message will appear on the corresponding
serial port:

.. code-block:: console

   Hello World! arm


.. _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

.. _LPCScrypt:
   https://www.nxp.com/support/developer-resources/software-development-tools/lpc-developer-resources-/lpc-microcontroller-utilities/lpcscrypt-v2.0.0:LPCSCRYPT