【摘要】 针对在应用中高速DSP TS201的LINK口不能直接通过光纤实现数据远程传输的缺陷,介绍了一种基于FPGA(Xilinx的Virtex-4系列中的XC4VFX60)的LINK口与光纤通信的接口设计。给出了DSPTS201的LINK口与光纤通信转换的硬件和FPGA逻辑设计实例,并对逻辑设计的时序进行了综合和仿真,最后在Virtual DSP开发环境中验证了接口设计的LINK口远程通信互连结果。结果表明通过接口设计电路的转换,TS201 LINK口实现了在物理层按照RocketIO方式通信,数据层按照LINK口协议通信的远程数据传输功能,数据传输速度单向为250 MB/s,双向为500 MB/s,且具有高速、可靠稳定等特点。更多还原

【Abstract】 For DSP(digital signal processor)TS201 can not communicate with each other through LINK port when long instance existed,a kind of circuit interface design based on FPGA(Xilinx Virtex 4)and SFP optical module is presented,including hardware structure,logic design module and simulation example.Based the design,TS201 LINK port can transmit remote data with the RocketIO protocol in the physical layer and LINK protocol in the data layer,and the unidirectional data speed is 250 MB/s and the full-duplex data speed is 500 MB/s,which can be verified in the virtual DSP development environment.更多还原