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引用本文：

张建喜,汪峰,李金海,等.基于USB的GPS数据采集系统[J].电讯技术，2010，50（6）： - . [点击复制]
ZHANG Jian-xi,WANG Feng,LI Jin-hai,et al.A GPS Data Acquisition System Based on USB[J].，2010，50（6）： - . [点击复制]

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基于USB的GPS数据采集系统
张建喜,汪峰,李金海,阎跃鹏
0 字体:加大+\|默认\|缩小-
(中国科学院微电子研究所，北京 100029)

摘要:

介绍了一种基于USB的GPS数据采集系统软硬件设计方案，以FPGA为该系统的控制核心、CY7C68013为USB接口芯片实现FPGA与上位机之间的数据传输。针对FLASH中的坏块问题，提出了一种FLASH坏块检测及管理方案。采用双缓冲技术，解决了采集系统中的数据丢失问题。该系统实时传输速率达4 Mbit/s，而且可支持更高的传输速度。

关键词: GPS接收机数据采集系统通用串行总线双缓冲技术实时传输

DOI：

基金项目:国家高技术研究发展计划(863计划)项目（2009AA12Z314）

A GPS Data Acquisition System Based on USB

ZHANG Jian-xi,WANG Feng,LI Jin-hai,YAN Yue-peng

(Institute of Microelectrinoics，Chinese Academy of Sciences,Beijing 100029，Chi na)

Abstract:

The design of a GPS data acquisition system based on USB(Universal Serial Bus) is introduced.The software and hardware design is given.FPGA is the master cont rol of the system. CY7C68013 is used as USB interface chip to complete data tran smission between FPGA and USB host.With regard to the FLASH invalid block,a meth od of FLASH invalid block detection and management is proposed. Doublebufferin g technology is used to solve the problem of data loss. The realtime transmissio n rate of the system is up to 4Mbit/s and the system supports higher transmissi on speed.

Key words: GPS receiver data aquisition system USB double buffering technology real time transmission