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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COMP比较器轮询功能，PA01作为比较器正端输入，VREFINT作为比较器负端输
入，通过调整PA01上的输入电压，当检测到比较器输出状态为高时，LED灯亮，比较器输出
状态为低时，LED灯灭。

Function descriptions:
This sample demonstrates the polling function of the COMP comparator. 
PA01 is used as thepositive input of the comparator, VREFINT is used as the 
negative input. By adjusting the input voltage on PA01, the LED will turn on 
when the comparator output state is high, and the LED will turn off when the 
comparator output state is low.
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测试环境：
测试用板：PY32MD320_STK
MDK版本： 5.28
IAR版本： 9.20
GCC版本： GNU Arm Embedded Toolchain 10.3-2021.10

Test environment:
Test board: PY32MD320_STK
MDK Version: 5.28
IAR Version: 9.20
GCC Version: GNU Arm Embedded Toolchain 10.3-2021.10
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使用步骤：
1. 编译下载程序到MCU，并运行；
2. PA01输入小于1.1V电压，LED灯灭；
3. PA01输入大于1.3V电压，LED灯亮。

Example execution steps:
1.Compile and download the program to the MCU and run it.
2.When the input voltage on PA01 is less than 1.1V, the LED will be off.
3.When the input voltage on PA01 is greater than 1.3V, the LED will be on.
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注意事项：

Notes:

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