基于USB协议的DSP高速上位机接口设计  

High-speed PC Interface Design for DSP Based on USB Protocol

作　　者：白森[1] 苏延川[1] 

机构地区：[1]中国空空导弹研究院航空制导武器航空科技重点实验室,河南洛阳471009

出　　处：《现代电子技术》2011年第15期8-10,14,共4页Modern Electronics Technique

摘　　要：弹载信号处理机的DSP系统需要高速、简便的上位机接口实现大数据量的变量实时监控和在线程序加载功能。USB接口以其简单、高速与通用的优势成为优选。介绍一种基于USB接口芯片(CY7C68013A)和FPGA实现的ADSP-TS101扩展USB接口的设计方法,该方法利用DSP的Linkport接口,以DMA方式进行高速数据交换,目前该设计已成熟、可靠地应用于某弹载信号处理系统。The high-speed,simple control PC interface is necessary for missile-based signal processor DSP system to realize mass variable real-time monitoring and in-system boot loading.Therefore,USB bus with high-speed,compatibility and some others characteristics is suitable.In this paper,an extended USB interface system for ADSP-TS101 based on CY68013A USB interface chip and FPGA is presented,which adopted DSP Linkport to accomplish high-speed data exchange with DMA mode.Currently,this design has been successfully used in certain missile-based signal processing system.

关 键 词：USB DSP Linkport PC机接口 高速数据交换 

分 类 号：TN87-34[电子电信—信息与通信工程]