Overview
========
This demo describes how to use SDK drivers to implement the PWM feature by FLEXIO IP module.
It outputs the PWM singal with fixed frequency defined by "DEMO_FLEXIO_FREQUENCY" in source code
and dynamic duty from 99 to 1 to one of the FLEXIO pin.

Toolchain supported
===================
- IAR embedded Workbench  8.50.1
- Keil MDK  5.30
- GCC ARM Embedded  9.2.1
- MCUXpresso  11.2.0

Hardware requirements
=====================
- Mini/micro USB cable
- EVK-MIMXRT1060 board
- Personal Computer
- Oscilloscope

Board settings
==============
No special is needed.
Use oscilloscope to measure the output 48KHz PWM signal pin at J22-7 pin.

Prepare the Demo
================
1. Connect a USB cable between the PC host and the OpenSDA USB port on the board.
2. Open a serial terminal with these settings:
    - 115200 baud rate
    - 8 data bits
    - No parity
    - One stop bit
    - No flow control
3. Download the program to the target board.
4. Either press the reset button on your board or launch the debugger in your IDE to begin running the example.

Running the demo
================
When the example runs successfully, you can see the similar information from the terminal as below.
~~~~~~~~~~~~
FLEXIO_PWM demo start.
~~~~~~~~~~~~
Customization options
=====================

