【作者】 马鑫；

【导师】 彭喜元；

【作者基本信息】 哈尔滨工业大学 ， 仪器科学与技术， 2008， 硕士

【摘要】 分布式测控系统由于其在民用和军用方面的广泛应用,受到了越来越多的重视。与此同时,应用于测试系统的数采设备性能也得到了迅速的提高,因此导致了数据传输量成倍地增加,现有的数据传输系统已经无法满足实际需求。因此研制高速数据传输系统已经成为分布式测控系统发展急需解决的问题之一。本课题应用PCI总线技术、DMA数据传输技术和LVDS信号技术实现了高速数据通讯板的设计。课题选用PCI-9054芯片作为PCI总线控制器并采用DMA技术设计实现了通讯板与计算机之间的高速数据传输;课题采用高性能FPGA,综合运用硬件描述语言、数据传输同步技术以及模块化思想设计实现了并行数据与串行数据之间的转换以及数据传输控制;通过FPGA内的控制模块与高速静态RAM的配合应用,课题完成了PCI总线控制器与高速数据收发模块之间的数据缓存;课题采用FPGA提供的LVDS信号接口,设计实现了LVDS高速串行数据传输通道并利用高速PCB设计方法进行设计以保证信号的完整性。在完成硬件设计的基础上,本课题采用VC6.0完成了通讯板应用程序的开发。本课题分别采用了误码率与眼图的测试方案针对高速数据传输的性能进行了测试。测试在实验室条件下完成。测试结果表明,通讯板的开发完成了设计指标要求。更多还原

【Abstract】 Because of its widely application in military and civilian affairs, distributed measurement and control system has gained more and more attention. At the same time, performance of data acquisition equipment applied to measurement system has been developed rapidly, which led to the transmission of data have multiplied, the existing data transfer systems are not able to meet demand. Therefore study on high-speed data transmission technology has become an urgent need to to solve the problem of distributed measurement and control system development.Using PCI bus technology, DMA data transfer technology and LVDS technology this topic has achieved high-speed data communication board design. PCI-9054 chip, designed as a PCI bus controller and developed with DMA technology, is implemented by this topic to achieve high-speed data transmission between the board and computer. The topic uses high-performance FPGA, applying hardware description language, data synchronization technology and modular design ideas, to realize high-speed data transmission controll and the conversion between parallel and serial data flow. Using the controller designed by the FPGA and high-speed static RAM, this topic realizes the data cache between PCI bus controller and high-speed serial data transfer modules. The topic uses high-speed LVDS interfaces provided by the FPGA to develop LVDS high speed serial data transmission channels and high speed PCB designing method is also considered to keep signal integrity. Upon completion of the hardware design, this topic develops the communications board application programme by using VC6.0.The topic uses bit error rate and eye test programme for high-speed data transmission performance test. The tests are done under the laboratory conditions. Test results show that the subject of design has met the demands of technical indexes.更多还原