摘要
设计一种USB 3.0+PCI的双接口数据传输系统,系统采用FPGA作为核心控制器,CYUSB3014和PCI9054作为USB 3.0与PCI接口芯片,实现上位机下发指令给远端采编存储设备,及存储设备的数据回传。设计中PCI接口采用单次访问结合突发访问的数据传输模式,USB通信高速稳定,且两个接口互为备用,相较于单一接口具有更高的可靠性。实践表明,该系统数据传输速率达到176 MB/s,保证可靠性的同时,相较于单一USB 2.0接口的12 MB/s有了大幅提高。
A USB 3.0 and PCI dual-interface data transmission system was designed. A FPGA is used as the core controller in the system. CYUSB3014 and PCI9054 are adopted as interface chips of USB and PCI to achieve the functions that the host computer issued instructions to the remote storage devices,and collect the data returned from storage devices. The data transmission mode combining the single access with burst access is adopted in the design for PCI interface. USB communication is fast and stable,and the two interfaces are mutual backups of the two. Compared with the system with a single interface USB 2.0,whose data transmission rate is 12 MB/s,it has higher reliability. The practice shows that the data transmission rate of the system can reach up to 176 MB/s,while ensuring its reliability.
出处
《现代电子技术》
北大核心
2016年第8期96-99,103,共5页
Modern Electronics Technique
基金
山西省自然科学基金(2014011021-5)
