2008•Industrial Instrumentation & AutomationRequires access

The application of USB to intelligent instruments

Fan Pan-guo

Abstract

This paper presents a new applied scheme of the USB interface technology,in order to solve the problem of the conventional RS232 communication in intelligent instrument by taking the C8051F340 MCU with USB function controller as hardware platform.The hardware structure and the working principle of the USB interface technology are described.The design process of a firmware program for the USB system is also given.The paper gives a brief introduction about the designing of both the USB driver and the application program.

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Available abstract

Key concepts: USB, Firmware, Host controller interface, eXtensible Host Controller Interface (xHCI), USB hub, Microcontroller, Embedded system, Interface (matter)