/**
  ******************************************************************************
  * 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) 2018 Shanghai Eastsoft Microelectronics Co., Ltd. ALL rights reserved.
  *******************************************************************************
  */

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Version history:
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2018-10-29	V1.0.0	AE TEAM


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Demo introduction:
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@pin connection: 

	UART0_TX ---- PB10
	UART0_RX ---- PB11

@how to use

This demo show how to use MD library drivers to transfer data using UART.
In user_init() function,the following items is required:
    1) Config NVIC;
    2) Config GPIO;
    3) Config UART by calling md_uart_init() function;

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The main document introduction:
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system:
startup_es32f0xx.s ------- Startup file

user:
irq.c -------------------- Interrupt handlers file
main.c ------------------- Main source file
main.h ------------------- Main header file

md library:
md_utils.c -------------- MD drivers configuration file
md_cmu.c ---------------- CMU MD drivers file
md_dma.c ---------------- DMA MD drivers file
md_gpio.c --------------- GPIO MD drivers file
md_uart.c --------------- UART MD drivers file