Overview
========
The spi_interrupt example shows how to use spi functional API to do interrupt transfer:

In this example, one spi instance as master and another spi instance as slave. Master sends a piece of data to slave,
and check if the data slave received is correct.

Toolchain supported
===================
- IAR embedded Workbench  8.32.3
- Keil MDK  5.27
- MCUXpresso  11.0.0
- GCC ARM Embedded  8.2.1

Hardware requirements
=====================
- Micro USB cable
- LPCXpresso54102 board
- Personal Computer

Board settings
==============
Connect SPI0 pins to SPI1 pins:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Master - SPI0                 CONNECTS TO      Slave - SPI1
Pin Name   Board Location                      Pin Name  Board Location
MISO       J3 pin 3                            MISO      J1 pin 11
MOSI       J3 pin 2                            MOSI      J1 pin 13
SCK        J3 pin 4                            SCK       J1 pin 9
SSEL0      J3 pin 1                            SSEL0     J1 pin 15
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Prepare the Demo
================
1.  Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J6) on the board
2.  Open a serial terminal with the following settings (See Appendix A in Getting started guide for description how to determine serial port number):
    - 115200 baud rate
    - 8 data bits
    - No parity
    - One stop bit
    - No flow control
3.  Download the program to the target board.
4.  Reset the SoC and run the project.

Running the demo
================
When the demo runs successfully, the log would be seen on the CMSIS DAP terminal like:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SPI one board interrupt example started!

SPI transfer finished!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Customization options
=====================

