基于NIOS II处理器的USB双向数据传输系统

USB Double Direction Data Transmission System Based on NIOS II Processor

摘要:

介绍了一种双向数据传输系统设计方案和实现方法,采用USB2.0接口芯片CY7C68013A与FPGA相结合构建硬件系统,FPGA内嵌NIOS II软核处理器负责数据处理;系统通过USB接口向上传输数据到上位机,结合基于VC++开发的数据传输控制软件平台,发送控制命令及数据到硬件系统端,从而实现USB接口的双向数据传输功能;详细描述了系统的硬件电路设计和软件实现过程,实验证明该系统具有高速、便携、通用性强的特点,系统数据最高传输速度达到33 MB/s,且工作稳定可靠。

Abstract:

This paper introduces a two-way data transmission system design scheme and realization method. Combination USB2.0 interface chip CY7C68013A and FPGA to build the hardware system. The FPGA embedded soft core processor NIOS II is responsible for data processing. System use the USB interface to transmit data up to the PC machine, and connecting with data transmission control software based on VC++ development platform to send control commands and data to the hardware system. So that can achieve the function of USB interface bidirectional data transmission. Paper described in detail the system design of hardware circuit and the software implementation process. Experiments proved that the system has the characteristics of high-speed, portable, versatility, and the system is stable and reliable.