/**
  @page FIFO Low Power Demo Application based on sensor expansion board X-NUCLEO-IKS01A2 and STM32 Nucleo Boards

  @verbatim
  ******************** (C) COPYRIGHT 2017 STMicroelectronics *******************
  * @file    readme.txt
  * @version V4.0.0
  * @date    1-May-2017
  * @brief   This application contains an example which shows how to use
  *          sensor expansion board to count steps with the LSM6DSL component.
  *          The communication is done using a UART connection with PC.
  ******************************************************************************
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  @endverbatim

@par Example Description

Main function is to show how to use sensor expansion board to store accelerometer data into a FIFO and send the stored data
from a Nucleo board using UART to a connected PC or Desktop and display them on generic applications like TeraTerm.
After connection has been established:
- the user can push the user button to launch the FIFO Low Power Demo and then view the results using an hyper terminal. After that,
the component goes to sleep mode. Pressing the user button again, the user can launch again the FIFO Low Power Demo.


@par Hardware and Software environment

  - This example runs on Sensor expansion board attached to STM32F401RE, STM32L053R8, STM32L152RE and STM32L476RG devices.
  - If you power the Nucleo board via USB 3.0 port, please check that you have flashed the last version of
    the firmware of ST-Link v2 inside the Nucleo board. In order to flash the last available firmware of the
	ST-Link v2, you can use the STM32 ST Link Utility.
  - This example has been tested with STMicroelectronics NUCLEO-F401RE RevC, NUCLEO-L053R8 RevC and NUCLEO-L152RE RevC
    and NUCLEO-L476RG RevC and can be easily tailored to any other supported device and development board.


@par How to use it ?

This package contains projects for 3 IDEs viz. IAR, µVision and System Workbench. In order to make the
program work, you must do the following:
 - WARNING: before opening the project with any toolchain be sure your folder
   installation path is not too in-depth since the toolchain may report errors
   after building.
 - WARNING: this sample application uses the following serial settings: baud rate 115200 bps; 8 data bits; No parity; 1 stop bit; no hard flow control.

For IAR:
 - Open IAR toolchain (this firmware has been successfully tested with
   Embedded Workbench V7.80.4).
 - Open the IAR project file EWARM\STM32F401RE-Nucleo\Project.eww or EWARM\STM32L053R8-Nucleo\Project.eww or EWARM\STM32L152RE-Nucleo\Project.eww
   or EWARM\STM32L476RG-Nucleo\Project.eww according the target board used.
 - Rebuild all files and load your image into target memory.
 - Run the example.

For µVision:
 - Open µVision 5 toolchain (this firmware has been
   successfully tested with MDK-ARM Professional Version: 5.22).
 - Open the µVision project file MDK-ARM\STM32F401RE-Nucleo\Project.uvprojx or MDK-ARM\STM32L053R8-Nucleo\Project.uvprojx or MDK-ARM\STM32L152RE-Nucleo\Project.uvprojx
   or MDK-ARM\STM32L476RG-Nucleo\Project.uvprojx according the target board used.
 - Rebuild all files and load your image into target memory.
 - Run the example.

For System Workbench:
 - Open System Workbench for STM32 (this firmware has been
   successfully tested with System Workbench for STM32 Version 1.14.0.20170306).
 - Set the default workspace proposed by the IDE (please be sure that there are not spaces in the workspace path).
 - Press "File" -> "Import" -> "Existing Projects into Workspace"; press "Browse" in the "Select root directory" and choose the path where the System
   Workbench project is located (it should be SW4STM32\STM32F401RE-Nucleo\STM32F4xx-Nucleo-LSM6DSL_FIFOLowPower or SW4STM32\STM32L053R8-Nucleo\STM32L0xx-Nucleo-LSM6DSL_FIFOLowPower or SW4STM32\STM32L152RE-Nucleo\STM32L1xx-Nucleo-LSM6DSL_FIFOLowPower or SW4STM32\STM32L476RG-Nucleo\STM32L4xx-Nucleo-LSM6DSL_FIFOLowPower according the target board used).
 - Rebuild all files and load your image into target memory.
 - Run the example.


 * <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
 */