MSP430 带有的DAC12 模块，可以将运算处理的结果转换为模拟量，以便操作被控制对象的工作过程。DA是在控制操作过程中常用的器件之一；MSP430有些系列中含有DAC12模块，给需要使用DA的方案提供了许多方便。这里实现较为简单的DAC的驱动，方便以后使用。

-DAC12 module, MSP430 with the result of the arithmetic processing can be converted to analog in order to operate the working process of the controlled object. DA is one of the devices used to control operation　contains MSP430 some series the DAC12 module to the need to use the DA program provides a lot of convenience. Here simpler DAC drive for later use.