USB通信技术在自动测试系统中的应用  

Application of USB communication technology in automatic test system

作　　者：庞俊奇[1] 沈三民[1] 张会新[1] 黄卡尔[1] 

机构地区：[1]中北大学电子测试技术国家重点实验室仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《电子设计工程》2009年第8期6-8,11,共4页Electronic Design Engineering

基　　金：国家自然科学基金(50424507)

摘　　要：介绍一种基于USB通信技术的自动测试系统ATS(Automatic Test System)设计方案。采用EZ-USB FX2单片机的GPIF方式建立计算机与中控FPGA的高速数据传输通道,将不同类型的测试信号经FPGA数据处理后,由相应的调理接口电路传送至测试对象完成测试功能。详细阐述并分析USB工作原理及系统软硬件设计,并结合实践测试验证该方案的可行性和通用性,该设计具有很高的实用价值和应用前景。This paper introduces a design scheme of automatic test system based on USB communication technology. Through GPIF mode of EZ-USB FX2 single chip,a high-speed data transfer channel between computer and FPGA is established,FPFA processes various types of test signals,then transmits them via the corresponding recuperation interface circuit to the testee,completes the test assignment finally.This paper elaborates and analyses the USB work principle, software and hardware design of the system in detail,combines with the practice test confirms the feasibility and universality of the system, which has very high practical value and application prospect.

关 键 词：测试系统 USB FPGA GPIF 固件 

分 类 号：TP274.4[自动化与计算机技术—检测技术与自动化装置]