/**
  ******************************************************************************
  * 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
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  * Copyright (C) 2021 Shanghai Eastsoft Microelectronics Co., Ltd. ALL rights reserved.
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  */

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Version history:
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2023-3-29	V1.00	AE TEAM

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Demo introduction:
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本示例功能：HRC时钟校准LRC使WWDT产生精确的秒唤醒，每次唤醒，LED翻转电平
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测试环境:
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测试用板；
ES-PDS-ES32F010xDB1

辅助工具：
多功能接口转换工具ESBridge

辅助软件：
ESBridge上位机软件

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测试步骤：
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1) 编译工程，编译通过后将程序下载到目标芯片；
2) 将测试用板对应的VDD和GND引脚分别连接到ESBridge的VCC和GND；
3) 将测试用板与ESLINK2的连接断开，由ESBridge供电
4) 将SW1开关打向BAT一侧
5) 按下测试用板的RESET键
6) 上位机切换到功耗检测标签页，选择“开始”进行功耗监测；
7) MCU每秒唤醒一次，对PA15进行一次电平翻转后MCU继续进入低功耗状态；

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注意：
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1) 测试板与ESBridge需共GND。
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System clock:
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Internal HRC 32MHz

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Pin connection: 
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LED          ---- PA15[GPIO_FUNC_1]
