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                                样例使用说明
                             Sample Description
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功能描述：
该样例演示了硬件CRC功能，CRC配置为ModBus模式，计算0x1234的CRC值，与实际值相比较，如果
计算出错则LED2亮，LED1每隔1s翻转一次。

Function descriptions:
This example demonstrates the hardware CRC function, CRC configured in ModBus mode, 
calculate the CRC value of 0x1234 and compare it with the actual value.If there is 
a calculation error, LED2 will light up, LED1 flips every 1 second.
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测试环境：
测试用板：DPM32M087RBTx_EVB V1.0
MDK版本： 5.28

Test environment:
Test board: DPM32M087RBTx_EVB V1.0
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. 可观察到开发板上的LED1每隔1s翻转一次。
2. 如果CRC计算出错则LED2亮。

Example execution steps:
1. Compile and download the program to MCU, and run it.
2. It can be observed that LED1 on the development board flips every 1 second.
If there is an error in CRC calculation, LED2 will light up.
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注意事项：
LED引脚如下：
LED1       -> PC10
LED2       -> PC11

Notes:
The LED pins are as follows:
LED1       -> PC10
LED2       -> PC11
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