摘要
介绍了一种USB总线的通用接口芯片CH375,并在此基础上提出了一种外部单片机读写U盘的基本方法及其硬件连接方法。单片机只要在原硬件系统中增加1个CH375芯片就可以直接调用CH375提供的子程序库来直接读取U盘中的数据,从而实现了普通单片机与U盘的通讯、方法简单、便于操作、综合成本比较低,具有较大的推广应用价值。
A general purpose interface chip CH375 for USB is introduced in this paper. Based on which a new method of using external single chip microcomputer to connect with the flash disk is given. Only add one CH375 chip to the single chip microcomputer＇s hardware system, the operator can use the program given by the CH375 to read the data from the flash disk and realize the communication between the single chip microcomputer and the flash disk. This method is very simple and can be operated easily.
出处
《现代电子技术》
2006年第18期13-15,共3页
Modern Electronics Technique
关键词
U盘
CH375
接口芯片
单片机
USB
CH375 ；interface chip； single chip microcomputer
