功能简介：

DAC0832是一款较常用的8位数模转换芯片，很有代表性，其操作时序也相当简单。本实验通过设置使DAC输出一个固定电流(电流大小请参考DAC0832的数据手册)，通过跳线帽控制3脚小灯的亮度，也可以使用DAC OUT端口外扩电路产生电压信号(请参考DAC0832的数据手册)。

-Features:

　　DAC0832 is a more commonly used 8-bit analog converter chip, very representative, the timing of its operation is quite simple. In this study, the DAC output by setting a constant current (current size of the data sheet, please refer to DAC0832), 3 feet by jumpers control the brightness of the small lights can also be extended using the DAC OUT ports, the circuit produces a voltage signal (refer to DAC0832 s data sheet).