================================================================================
                                样例使用说明
                             Sample Description
================================================================================
功能描述：
此样例演示了通过软件方式将RESET引脚改为普通GPIO。

Function descriptions:
This sample demonstrates how to change the RESET pin to a regular GPIO using 
software.
================================================================================
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
================================================================================
使用步骤：
1. 编译下载程序到MCU，并运行；
2. 请将MCU断电并重新上电；
3. 按下按键，RST键变为GPIO功能，LED亮；
4. 注释掉"RSTPIN_MODE_GPIO",打开"RSTPIN_MODE_RST",编译重新下载到MCU;
5. 将MCU断电并重新上电；
6. 按下按键，RST键变为RESET功能，LED亮；

Example execution steps:
1.Compile and download the program to the MCU and run it.
2.Please power off the MCU and power it on again.
3.Press the button,The RST button functions as a GPIO, and the LED is on.
4.Comment out "RSTPIN_MODE_GPIO", uncomment "RSTPIN_MODE_RST", recompile, and 
download to the MCU.
5.Power off the MCU and power it on again.
6.Press the button,The RST button functions as a RESET, and the LED is on.
================================================================================
注意事项：
该样例将RST的按键改成GPIO功能，在使用其他样例前请将RST按键改回RST功能。

Notes:
This sample changes the functionality of the RST button to GPIO. Please change 
the RST button back to RESET functionality before using other samples.
================================================================================