Design and implementation of a U disk read-write system based on USB master-slave interface chip

Abstract

A flash disk read-write system for non-PC device was implemented using USB serial communications. In this system, a CH376S chip with USB master-slave interface communicates with single-chip microprocessor STC90C58AD thus enabling the single-chip microcomputer to perform read-write visits with flash disk. Experiments showed that this system could read from and write on USB as rapidly and conveniently as using PC, offering great convenience for data storage and exchange using non-PC devices.