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Data Acquisition System of Sensors Based on USB Communication

Kai Li

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Abstract

The data acquisition system of sensors based on USB communication took an EZ-USB controller as the core.And the EZ-USB controlled A/D conversion by its control circuit.Thus the parameters detected by sensors were imported to the computer and displayed.The core of USB interface circuit was AN2131QC,and the core of USB functioning circuit unit was AD7938.The firmware program of the system was written by Keil C51 language and the USB driver and Win32 application by VC++.

About this research paper

What this paper is about

The data acquisition system of sensors based on USB communication took an EZ-USB controller as the core.And the EZ-USB controlled A/D conversion by its control circuit.Thus the parameters detected by sensors were imported to the computer and displayed.The core of USB interface circuit was AN2131QC,and the core of USB functioning circuit unit was AD7938.The firmware program of the system was written by Keil C51 language and the USB driver and Win32 application by VC++.

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Available abstract

The data acquisition system of sensors based on USB communication took an EZ-USB controller as the core.And the EZ-USB controlled A/D conversion by its control circuit.Thus the parameters detected by sensors were imported to the computer and displayed.The core of USB interface circuit was AN2131QC,and the core of USB functioning circuit unit was AD7938.The firmware program of the system was written by Keil C51 language and the USB driver and Win32 application by VC++.

Key concepts: USB, Firmware, USB hub, Host controller interface, eXtensible Host Controller Interface (xHCI), Computer hardware, Embedded system, PC Card

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