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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flash page擦除和page写功能。

Function descriptions:
This sample demonstrates the functionality of erasing a flash page and 
programming data to a page.
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测试环境：
测试用板：PY32F003_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: PY32F003_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. 按下按键，程序进行page擦除和page写功能；
3. page擦除成功和page写成功，LED亮。

Example execution steps:
1.Compile and download the program to the MCU, and run it.
2.Press the button to execute page erasure and page programming.
3.If the page erasure and page programming are successful, the LED will turn on.
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注意事项：
如果需要使用按键:
StartKit版本为V2.0以下,需将StartKit.h中的StartKitVersion 2 注释掉，并打开
StartKitVersion 1
StartKit版本为V2.0及以上版本,则无需操作

Notes:
If you need to use buttons:
StartKit version is below V2.0, you need to comment StartKitVersion 2 in
StartKit.h, and open StartKitVersion 1 
StartKit version is V2.0 and above, no operation is required
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