高速数据采集系统中USB3.0数据传输接口设计

高速稳定可靠的数据传输在高速数据采集系统中扮演着重要的角色。针对弹载电子测试仪对高速数据传输的要求，设计了一个基于USB3.0的高速数据采集传输系统。该系统数据传输部分采用Cypress公司CYUSB3014芯片作为接口芯片，详细介绍了接口连接及硬件工作过程；介绍了USB3.0接口的软件设计主要模块，如DMA通道、GPIF II可编程接口等固件编程。实际测试表明：该系统实现了数据高速可靠传输，固件程序能够正常稳定的运行。

Design of USB3.0 Data Transmission Interface in High Speed Data Acquisition System

Stable and reliable high-speed data transmission plays an important role in high-speed data acquisition system. Because missile-borne electronic tester has high demand for speed of data transmission, a high-speed data collection and transmission system is designed. Data transmission part in this system adopts CYUSB3014 chip produced by Cypress company as the interface chip. Interface connection and working process of the hardware is introduced. Main module of the interface software design, such as the DMA channel, GPIFII programmable interface firmware programming are introduced. Test shows that this system has realized reliable high-speed data transmission, and the firmware program operates normally and stably.