摘要
白色智能家电产品多以单片机进行控制。这一类产品的特点是体积较小,需要外部输入的信息和对外输出的信息多,因此要求单片机体积小且I/O多。通过对基于单片机的串行通信接口与并入串出移位寄存器74LS166配合进行输入口扩展的关键技术进行研究,提出解决数据错位的方法。
The white intelligent home appliances are often controlled by single chip microcomputer(MCU). The characteristics of this kind of product is small size and more information from external input and to external output. Therefore,MCU with small in size and more I/O is required. In this paper,the serial communication interface based on AT89S2051 and parallel in serial out shift register 74LS166 are needed to research key technology of input interface extension. Some methods to solve data dislocation is put forward in this paper.
出处
《现代电子技术》
北大核心
2015年第7期160-162,共3页
Modern Electronics Technique