摘要
为了解决高速数据采集过程中,数据通过LVDS接口向计算机高速传输数据的问题。采用了Xilinx公司Artix-7系列型号为XC7A35T的FPGA作为主控芯片,并基于USB3.0接口芯片设计了从LVDS到USB3.0的高速数据传输接口。使用了FPGA内置的LVDS收发器接收LVDS数据,并通过DDR3缓存后写入到USB3.0控制传输芯片,完成LVDS接口到USB3.0接口的高速数据传输。经过数据传输测试,系统能够将LVDS接口收到的数据通过USB3.0传输到计算机的上位机,实际传输过程中速率保持在250 MB/s,具有硬件设计简单、传输速度快等特点。
To solve the problem of high-speed data transmission to a computer through LVDS interface during high-speed data acquisition.Using Xilinx Artix-7 series model XC7 A35 T FPGA as the main control chip,and based on USB3.0 interface chip design from LVDS to USB3.0 high-speed data transmission interface.LVDS transceiver built-in FPGA is used to receive LVDS data and write it to USB3.0 control transmission chip after caching by DDR3 to complete high-speed data transmission from LVDS interface to USB3.0 interface.After the data transmission test,the system can transmit the data received by the LVDS interface to the upper computer of computer through USB3.0.In the actual transmission process,the rate is kept at 250 MB/s,which has the characteristics of simple hardware design and fast transmission speed.
作者
李锦明
郑志旺
Li Jinming;Zheng Zhiwang(School of Instrument and Electronics,North University of China,Taiyuan 030051,China)
出处
《电子测量技术》
北大核心
2021年第7期1-6,共6页
Electronic Measurement Technology
