STM32F103 串口DMA+空闲中断接收（修复版）

STM32F103VET6 串口DMA+空闲中断接收，接收到的数据用DMA串口实时发送回去。相对于之前上传的版本，修复了一个bug。 关于bug的详细描述，参考我的博文：https://blog.csdn.net/mickey35/article/details/78521311

/**
  ******************************************************************************
  * @file    stm32f1xx_hal.c
  * @author  MCD Application Team
  * @version V1.1.1
  * @date    12-May-2017
  * @brief   HAL module driver.
  *          This is the common part of the HAL initialization
  *
  @verbatim
  ==============================================================================
                     ##### How to use this driver #####
  ==============================================================================
    [..]
    The common HAL driver contains a set of generic and common APIs that can be
    used by the PPP peripheral drivers and the user to start using the HAL. 
    [..]
    The HAL contains two APIs‘ categories: 
         （+） Common HAL APIs
         （+） Services HAL APIs

  @endverbatim
  ******************************************************************************
  * @attention
  *
  * 
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  * 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
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  *      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
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  * 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.
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  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include “stm32f1xx_hal.h“

/** @addtogroup STM32F1xx_HAL_Driver
  * @{
  */

/** @defgroup HAL HAL
  * @brief HAL module driver.
  * @{
  */

#ifdef HAL_MODULE_ENABLED

/* Private typedef -----------------------------------------

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       6845  2017-11-14 10:38  DEMO\.mxproject

     文件        341  2020-10-24 14:08  DEMO\changelog.md

     文件       5977  2017-11-14 10:38  DEMO\DEMO.ioc

     文件     971857  2017-11-14 08:55  DEMO\Drivers\CMSIS\Device\ST\STM32F1xx\Include\stm32f103xe.h

     文件       8788  2017-11-14 08:55  DEMO\Drivers\CMSIS\Device\ST\STM32F1xx\Include\stm32f1xx.h

     文件       3337  2017-11-14 08:55  DEMO\Drivers\CMSIS\Device\ST\STM32F1xx\Include\system_stm32f1xx.h

     文件       7265  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\arm_common_tables.h

     文件       3942  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\arm_const_structs.h

     文件     252339  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\arm_math.h

     文件      24423  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\cmsis_armcc.h

     文件      55083  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\cmsis_armcc_V6.h

     文件      41435  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\cmsis_gcc.h

     文件      37218  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\core_cm0.h

     文件      44796  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\core_cm0plus.h

     文件     103909  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\core_cm3.h

     文件     114498  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\core_cm4.h

     文件     139660  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\core_cm7.h

     文件       3620  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\core_cmFunc.h

     文件       3636  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\core_cmInstr.h

     文件       3662  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\core_cmSimd.h

     文件      45262  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\core_sc000.h

     文件     102809  2017-11-14 08:55  DEMO\Drivers\CMSIS\Include\core_sc300.h

     文件     181878  2017-11-14 08:55  DEMO\Drivers\STM32F1xx_HAL_Driver\Inc\Legacy\stm32_hal_legacy.h

     文件      12026  2017-11-14 08:55  DEMO\Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal.h

     文件      18859  2017-11-14 08:55  DEMO\Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_cortex.h

     文件       8569  2017-11-14 08:55  DEMO\Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_def.h

     文件      19528  2017-11-14 08:55  DEMO\Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_dma.h

     文件      14148  2017-11-14 08:55  DEMO\Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_dma_ex.h

     文件      10636  2017-11-14 08:55  DEMO\Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_flash.h

     文件      38285  2017-11-14 08:55  DEMO\Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_flash_ex.h

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