Overview
========

The I2S example project uses one I2S interface to continuously playback the sine wave to output.

Toolchain supported
===================
- IAR embedded Workbench  9.20.1
- Keil MDK  5.34
- GCC ARM Embedded  10.2.1
- MCUXpresso  11.4.1

Hardware requirements
=====================
- Mini/micro USB cable
- LPCXpresso55S36 board
- Personal Computer
- headphones with 3.5 mm stereo jack
- source of sound (line output to 3.5 mm stereo jack)

Board settings
==============
Short JP50 1-2,JP53 1-2

Prepare the Demo
================
1.  Connect headphones to Audio HP / Line-Out connector.
2.  Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J1) on the board
3.  Open a serial terminal with the following settings :
    - 115200 baud rate
    - 8 data bits
    - No parity
    - One stop bit
    - No flow control
4.  Download the program to the target board.
5.  Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

Running the demo
================
Headphones will play a sine wave sound.
The log below shows example output of the I2S driver demo in the terminal window:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Configure WM8904 codec
Configure I2S
Setup looping playback of sine wave
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

