基于USB总线的NIOS系统与主机通信实现  

NIOS System and Implementing Mainframe Communication Based on USB Bus

作　　者：齐新军[1] 

机构地区：[1]哈尔滨学院,哈尔滨150086

出　　处：《煤炭技术》2011年第1期197-199,共3页Coal Technology

摘　　要：针对目前大部分串行接口传输效率低的缺陷,设计采用USB接口实现了NIOS系统与PC机的通信。介绍了NIOS系统和USB接口芯片CY7C68013的基本工作原理;设计了USB控制器的IP核、固件程序和应用程序;利用从属fifo方式,实现了数据的快速读写。测试结果表明,利用NIOS系统控制USB器件CY7C68013可实现高速数据传输、传输数据准确性高。Aiming at the inefficient communication of most serial port,this project through USB interface implementing the communication between NIOS system and PC.This article introduces NIOS system and the basic working principles of USB interface chip,device-CY7C68013, programming of the USB IP core,firmware and application program, and by adopting the slave fifo model to achieve fast reading and writing data. The result shows that using NIOS system to control the USB device-CY7C68013 can improve the efficiency and accuracy of the data transmission.

关 键 词：USB NIOS CY7C68013 固件 应用程序 

分 类 号：TN919[电子电信—通信与信息系统]