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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RTC的日历功能。当前时间和日期更新在全局变量aShowTime和aShowDate中。

Function descriptions:
This example demonstrates the calendar function of the RTC. The current time 
and date are updated in the global variables aShowTime and aShowDate.
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测试环境：
测试用板：PY32T092_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: PY32T092_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. 编译并下载程序到MCU，进入debug调试模式全速运行。
2. 通过调试窗口观察全局变量aShowTime和aShowDate可获得当前时间和日期。

Example execution steps:
Compile and download the program to the MCU, and enter the debug mode to 
run at full speed.
Observe the global variables aShowTime and aShowDate through the debug window 
to obtain the current time and date.
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注意事项：

Notes:

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