/*!
 * @file        readme.txt
 *
 * @brief       This file is routine instruction
 *
 * @version     V1.0.0
 *
 * @date        2023-03-25
 *
 * @attention
 *
 *  Copyright (C) 2023 Geehy Semiconductor
 *
 *  You may not use this file except in compliance with the
 *  GEEHY COPYRIGHT NOTICE (GEEHY SOFTWARE PACKAGE LICENSE).
 *
 *  The program is only for reference, which is distributed in the hope
 *  that it will be useful and instructional for customers to develop
 *  their software. Unless required by applicable law or agreed to in
 *  writing, the program is distributed on an "AS IS" BASIS, WITHOUT
 *  ANY WARRANTY OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the GEEHY SOFTWARE PACKAGE LICENSE for the governing permissions
 *  and limitations under the License.
 */

&par Example Description

This example provides a basic communication between USART1 and USART2 using DMA 
capability, flags and interrupts. 

First, the DMA transfers data from TxBuffer2 buffer to USART2 Transmit data register,
then this data is sent to USART1. 
In the same time, the DMA transfers data from TxBuffer1 buffer to USART1 Transmit
data register, then this data is sent to USART2. 

  - USART1\2 configured as follow:
  - BaudRate    = 115200
  - Word Length = USART_WordLength_8b
  - Stop Bit    = USART_StopBits_1
  - Parity      = USART_Parity_No
  - Hardware flow control disabled (RTS and CTS signals)
  - Transmit enabled

Connect  PA9(USART1 TX)    to PA3(USART2 RX)
Connect  PA10(USART1 RX)  to PA3(USART2 TX)

&par Directory contents

  - USART/USART_DMA_Interrupt/src/apm32a10x_int.c     Interrupt handlers
  - USART/USART_DMA_Interrupt/src/main.c              Main program

&par IDE environment

  - MDK-ARM V5.36
  - EWARM V8.50.5.26295
  - ECLIPSE V4.27

&par Hardware and Software environment

  - This example runs on APM32A103 MINI Devices.
