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。-MSP430 with DAC12 module, which can be converted to analog, the results of processing in order to operate the working process of the controlled object. DA is one of the commonly used in the process of control operation device　MSP430 DAC12 module is contained in some series, to need to use DA scheme offers many convenient. Here achieve comparatively simple DAC drive, convenient use in the future.