基于USB2.0技术的高速双路数据采集系统  

A Dual-Channel High-Speed Data-Acquisition System Based on USB2.0 Technique

作　　者：岳跃平[1] 霍玉晶[1] 何淑芳[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《微计算机信息》2007年第19期104-105,56,共3页Control & Automation

基　　金：国家自然科学基金重点项目(50132010)

摘　　要：本文设计了一种基于USB2.0芯片CY7C68013和Maxim公司的高速并行模数转换芯片Max1195的高速双路数据采集系统,采用EZ-USBFX2的特有的GPIF(General Programmable Interface)传输方式,彻底打破了8051CPU对USB2.0传输速率的瓶颈,同时避免了使用其他微处理器或者CPLD、FPGA等的硬件开支。本文详细介绍了该数据采集系统的硬件组成和软件设计,包括单片机CY7C68013的固件设计和计算机主机用户程序。通过与高精度激光纵模分析仪的连接调试,证明该系统已经达到了既定目标。A high- speed dual- channel Data- Acquisition System based on the CY7C68013 and MAX1195 is discussed in the paper. In the design, the FX2’s feature, the GPIF, which can totally remove the bottleneck caused by the 8051’s CPU, is used to achieve the maximum USB2.0 performance. No other microprocessor or CPLD or FPGA is needed. The paper has discussed both the hard- ware design and the software design of the system in great detail, including the firmware of the CY7C68013 and the user application program of the computer side. The system has been tested with a laser longitudinal mode analyzer experiment which proved the de- sign had achieved its original goals.

关 键 词：CY7C68013 USB2.0 GPIF 高速数据采集 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]