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Version history:
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2021-03-16	V1.00	AE TEAM
2022-09-15	V1.01	AE TEAM
1.适配ES-PDS-ES32F3696LX开发板

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Demo introduction:
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本示例功能：AD16C4T1使用外部时钟ET，AD16C4T1对其ET上的时钟进行100次计数后产生周期
更新事件中断，中断服务程序翻转PB8电平

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测试环境:
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测试用板：
ES-PDS-ES32F3696LX-V1.0

辅助工具：
多功能接口转换工具ES-DAPLink(ES-Bridge)

辅助软件：
ES-Bridge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) 将程序配置的TOGGLE引脚连接ES-DAPLink(ES-Bridge)的逻辑笔通道（例如P0/D0）；
3) 将程序配置的ET对应的引脚连接到ES-DAPLink(ES-Bridge)的PWM输出通道（例如PWM0）；
4) ES-DAPLink(ES-Bridge)通过USB线缆连接PC，打开上位机软件，“设备操作”选项里选择“打开”；
5) 上位机切换到PWM标签页，选择相应PWM输出通道，完成相关PWM配置后点击“开始”；
6) 上位机切换到逻辑笔标签页，选择相应逻辑笔通道后点击“开始”；
7) 在线调试，运行程序；

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注意：
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1) 测试板与ES-DAPLink(ES-Bridge)需共GND。

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System clock:
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HRC 24MHz divided by 6, then PLL to 72MHz.

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Pin connection:
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TOGGLE ---- PB8[GPIO_FUNC_1]
ET     ---- PA0[GPIO_FUNC_4]
