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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UART0打印功能，复位打印“Hello,DPM32”。

Function descriptions:
This sample demonstrates the printing function of UART0. After reset, 
it prints "Hello, DPM32".
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测试环境：
测试用板：DPM32M030_REV_A
MDK版本： 5.28

Test environment:
Test board: DPM32M030_REV_A
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. 串口打印数据，并显示接收到的数据。

Example execution steps:
1. Compile and download the program to MCU, and run it.
2. Print data through the serial port and display the received data.

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注意事项：
UART引脚如下：
UART0_Tx   -> PA9
UART0_Rx   -> PA10

Notes:
The UART pins are as follows:
UART0-Tx   -> PA9
UART0-Rx   -> PA10
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