自己修改的啊,其实很简单啊，不管你如何启动,复位总是没有问题的啊,除非你的固件是动态下载的。
代码是在/**
******************************************************************************
* @file usb_bsp.c
* @author MCD Application Team
* @version V1.1.0
* @date 19-March-2012
* @brief This file is responsible to offer board support package and is
* configurable by user.
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
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