/**
  ******************************************************************************
  * 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.
  *
  * Copyright (C) Shanghai Eastsoft Microelectronics Co., Ltd. ALL rights reserved.
  *******************************************************************************
  */

<--------------------------------------------------------------------------------
Version history:
--------------------------------------------------------------------------------->
2019-10-29	V1.0.0	AE TEAM

<--------------------------------------------------------------------------------
Demo introduction:
--------------------------------------------------------------------------------->
Write/Read W25Q128FV in DAC mode.

<--------------------------------------------------------------------------------
System clock:
--------------------------------------------------------------------------------->
Internal HRC 24Mhz divided by 6,then PLL to 48MHz.

<--------------------------------------------------------------------------------
Pin connection: 
--------------------------------------------------------------------------------->
QSPI_NSS0  ---- (PB12, GPIO_FUNC_6)
QSPI_SCK   ---- (PB13, GPIO_FUNC_6)
QSPI_IO0   ---- (PB14, GPIO_FUNC_6)
QSPI_IO1   ---- (PB15, GPIO_FUNC_6)
QSPI_IO2   ---- (PB10, GPIO_FUNC_6)
QSPI_IO3   ---- (PB11, GPIO_FUNC_6)


