基于USB接口的用于智能电器的高速存储器设计

Design of High-Speed Memory for Intelligent Electric Appliances Based on USB Interface

介绍了由单片机控制的,具有与计算机USB接口的嵌入式系统。该系统对单片机的内部资源要求低,存储器的容量可根据实际情况选取,并可快速存储、读取电力系统中在线监测所获得的重要信息参数。采用VB高级语言编写程序,把系统所存储的信息实时地传送到上位机并显示。实际测试表明,该系统的工作稳定,能方便地实现U盘中文件的新建、打开、删除、读写等操作功能。

Introduction was made to the embedded system with USB interface of computer which was controlled by microcontroller unit （MCU）. There were not too many requirements to the internal resources of MCU and the capacity of the storage could be selected according to the practical situation. Also the important information parameters acquired via on-line monitoring in the electric power system were quickly stored and accessed. The high-level language VB was adopted to program so that the stored information was sent to PC and displayed in real time. Practical test shows that the system is stable in working and convenient to realize creating, open, deleting and access etc operating functions for files in USB flash disk.