单片微型计算机体积和功耗很小,价格低廉,却具有相当强的控制功能和信息处理能力,所以在自动化系统中应用愈来愈多。近几年出现了很多以单片机为核心的产品,如智能化仪器仪表、工业用顺序控制器、单回路调节器等。在我国,单片机的应用不像单板机那样普及,一个重要的原因是单片机需要一套专用的应用开发系统,才能进行 Monolithic microcomputer small size and power consumption, low prices, but has a very strong control and information processing capabilities, so more and more applications in automation systems. In recent years there have been many products to the core of the microcontroller, such as intelligent instrumentation, industrial sequence controller, single-loop regulator. In our country, the application of the one-chip computer is not as popular as the one-board computer, an important reason is that the one-chip computer needs a set of specialized application development system, can carry on