摘要
USB是近年来在计算机领域日益流行的一种总线形式。在数据采集领域,基于FPGA和USB2.0的数据采集系统不但具有速度快、易扩展等特点,而且凭借即插即用的功能,适用于更广泛的应用场合。本文介绍了数据采集与传输系统的工作原理。硬件部分,给出了各模块的内部结构设计,以及FPGA内部各个功能模块的设计思路和具体实现过程;软件部分,给出了系统的软件结构,以及固件程序流程。
USB bus is increasingly popular in the computer industry. Data acquisition system based on FPGA and USB2.0 is not only fast but also easy to expand. Because of the plug-and-play function, it fits a wide range of applications. The working principle of data acquisition and transmission system is introduced. The internal structural design of the modules and design ideas as well as specific implementation process of various FPGA internal function circuits are given.
出处
《单片机与嵌入式系统应用》
2009年第9期32-35,共4页
Microcontrollers & Embedded Systems
基金
国家自然科学基金重大项目支持(项目编号:50490275)
