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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，PA04作为比较器负端输入，1/2VCCA 作为正端输入，通
过调整PA04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 COMP polling function, with PA04 as the negative
comparator input and 1/2VCCA as the positive input. Adjust the input voltage
on PA04, the LED will be on when the comparator output state is detected as high
and be off when the comparator output state is low.
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测试环境：
测试用板：PY32M010_STK
MDK版本： 5.28

Test environment:
Test board: PY32M010_STK
MDK Version: 5.28
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使用步骤：
1. 编译下载程序到MCU，并运行；
2. 配置PA04输入大于1.65V电压，LED灯灭；
3. 配置PA04输入小于1.65V电压，LED灯亮。


Example execution steps:
1. Compile and download the program and run it
2. when the PA04 input is larger than 1.65V,LED off
3. When PA04 input is less than 1.65V,LED on
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注意事项：
如果需要使用按键:
StartKit版本为V1.0,需将StartKit.h中的StartKitVersion 2 注释掉，并打开
StartKitVersion 1
StartKit版本为V1.0以上版本,则无需操作

Notes:
If you need to use buttons:
StartKit version is V1.0, please comment out StartKitVersion 2 in StartKit.h and 
open StartKitVersion 1
If the StartKit version is above V1.0, no operation is required
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