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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I2C从机以阻塞模式读写从机。

Function descriptions:
This sample demonstrates that the I2C master reads from and writes to the slave 
in blocking mode.
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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。

Example execution steps:
1. Compile and download the program to MCU, and run it.
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注意事项：
I2C引脚如下：
I2C_SCL    -> PA11
I2C_SDA    -> PA12

Notes:
The I2C pins are as follows:
I2C_SCL    -> PA11
I2C_SDA    -> PA12
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