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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：使用AD16C4T输出三组中心对齐互补PWM（6路），支持死区可调。

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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6路通道对应的引脚分别连接ES-DAPLink(ES-Bridge)的逻辑笔通道（例如P0/D0）；
3) 将程序配置的刹车引脚连接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PWM配置后选择“打开”；
6) 上位机切换到逻辑笔标签页，勾选逻辑笔通道后选择“打开”；
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。
2) CH1 500Hz   占空比26/36
3) CH2 500Hz   占空比16/36
4) CH3 500Hz   占空比 6/36
5) 死区时间 7us

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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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CH1O    ---- PC6[GPIO_FUNC_2]
CH1ON   ---- PA7[GPIO_FUNC_2]
CH2O    ---- PC7[GPIO_FUNC_2]
CH2ON   ---- PB0[GPIO_FUNC_3]
CH3O    ---- PC8[GPIO_FUNC_2]
CH3ON   ---- PB1[GPIO_FUNC_3]
BKIN    ---- PA6[GPIO_FUNC_2]
