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                                样例使用说明
                             Sample Description
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功能描述：
此样例演示了在sleep模式下，使用GPIO中断唤醒。

Function descriptions:
This example demonstrates using GPIO interrupt wake-up in sleep mode.
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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. LED灯亮，按下按键，LED灯灭，进入sleep模式；
3. 在PA06上产生一个下降沿，程序退出sleep模式；
4. LED以200ms的间隔进行翻转。

Example execution steps:
1.Compile and download the program to MCU and run it;
2.The LED light is on, press the button, the LED light goes out, and enters
sleep mode;
3.Generate a falling edge on PA06, and the program exits sleep mode;
4.The LED flips at 200ms intervals.
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注意事项：
1.演示此样例功能时需要断开swd连接线并重新上电，因为默认情况下，仿真器会把
DBGMCU_CR.DBG_STOP置位。
2.注意关闭systick中断，防止该中断唤醒MCU。
3.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:
1.To demonstrate this sample function, it is necessary to disconnect the SWD
cable and power it back on, as by default, the emulator will reset the
DBGMCU_CR.DBG_STOP position.
2.Pay attention to turning off the systick interrupt to prevent it from waking
up the MCU.
3.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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