Research on Portable Virtual Oscilloscope Based on USB Bus

被引：0

作者：

Niu, Junhao ^{[1
]}

Li, Zhi ^{[1
]}

机构：

[1] Guilin Univ Elect Technol, Sch Elect Engn & Automat, Guilin 541004, Guangxi, Peoples R China

来源：

ADVANCED RESEARCH ON INDUSTRY, INFORMATION SYSTEM AND MATERIAL ENGINEERING | 2012年 / 459卷

关键词：

Virtual Oscilloscope; FPGA; Slave FIFO; ADS830E; CY7C68013A;

D O I：

10.4028/www.scientific.net/AMR.459.114

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A designed method of portable virtual oscilloscope with USB interface is proposed in this paper. The programmable gain amplifier (attenuator) circuit is used to adjust the different range of inputting signal to the AID converter's. The AID convert is realized by using ADS830E, which is a chip with maxim 60MHz sample rate and 8-bit data width. CY7C68013A, one chip of EZ-USB FX2 series, is used to achieve the data transfer to computer in block mode. The FPGA is programmed as an external host controller to control the gain amplification and attenuation circuit, and provide the sample clock for high-speed A/D converter ADS830E, and send the data to the Slave-FIFO. Application software is designed with VC++ platform to calculate and display the received data graphically.

引用

页码：114 / 117

页数：4