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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DMA软件触发传输和中断功能，复位后串口打印传输前的数据，等待传输完成后，打印传输
后的数据，LED1每隔1s翻转一次。


Function descriptions:
This example demonstrates the DMA software triggering the transmission function. 
After resetting, the serial port prints the data before transmission, and after 
waiting for the transmission to be completed, prints the transmission Subsequent 
data, LED1 flips every 1 second.
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测试环境：
测试用板：DPM32M08X_EVB V1.0
MDK版本： 5.38


Test environment:
Test board: DPM32M08X_EVB V1.0
MDK Version: 5.38

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使用步骤：
1. 接上P10上的跳线帽，将串口接到USB。
2. 编译下载程序到MCU，并运行。
3. 串口打印传输日志。
4. 可观察到开发板上的LED1每隔1s翻转一次。

Example execution steps:
1. Connect the jumper cap on P10 and connect the serial port to USB.
2. Compile and download the program to MCU, and run it.
3. Print transmission logs through serial port.
4. It can be observed that LED1 on the development board flips every 1 second.
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注意事项：
LED引脚如下：
LED1       -> PC10

UART引脚如下：
UART_Tx    -> PA9
UART_Rx    -> PA10

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

The UART pins are as follows:
UART_Tx    -> PA9
UART_Rx    -> PA10
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