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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DAC的输出功能，每隔1msDAC输出Code值加一，可在PD11引脚读出电压变化，LED1
每隔1s翻转一次。

Function descriptions:
This example demonstrates the output function of DAC, where the DAC output Code 
value is increased by one every 1ms, and the voltage change can be read at the 
PD11 pin, LED1 Flip 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。
3. 可在PD11观察到DAC输出电压。

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.
3. The DAC output voltage can be observed in PD11.
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注意事项：
LED引脚如下：
LED1       -> PC10

DAC引脚如下：
DAC        -> PD11

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

The DAC pins are as follows:
DAC        -> PD11
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