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                                样例使用说明
                             Sample Description
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功能描述：
此样例演示了使用TIM1 PWM2模式输出三路频率为10Hz占空比分别为25%、50%、75%的PWM波
形。

Function descriptions:
This example demonstrates the use of TIM1 PWM2 mode to output three PWM waves 
with a frequency of 10Hz and a duty cycle of 25%, 50% and 75%, respectively.
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测试环境：
测试用板：PY32MD530_STK
MDK版本： 5.28

Test environment:
Test board: PY32MD530_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. 使用逻辑分析仪观察引脚PA8/PA9/PA10的波形

Example execution steps:
1.Compile and download the program to the MCU and run it.
2. Use the logic analyzer to observe the waveform of pin PA8/PA9/PA10
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注意事项：

Notes:

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