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                                样例使用说明
                             Sample Description
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功能描述：
此样例演示了GPIO模拟模式，配置PA0为模拟模式，ANA0模式下PA0可作为ADC通道0的输入。

Function descriptions:
This sample demonstrates the GPIO analog mode. Configure PA0 as the analog mode. 
In the ANA0 mode, PA0 can be used as the input of ADC channel 0. 
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测试环境：
测试用板：DPM32M030_REV_A
MDK版本： 5.28

Test environment:
Test board: DPM32M030_REV_A
MDK Version: 5.28
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使用步骤：
1. 编译下载程序到MCU，并运行。

Example execution steps:
1. Compile and download the program to MCU, and run it.
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注意事项：
GPIO    -> PA2

Notes:
GPIO    -> PA2

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