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Dual-channel data acquisition module hardware design 3GSPS

Author: WuWei
Tutor: WangHouJun
School: University of Electronic Science and Technology
Course: Detection Technology and Automation
Keywords: FMC Data Acquisition PCI bus Signal integrity
CLC: TP274.2
Type: Master's thesis
Year: 2011
Downloads: 116
Quote: 1
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Abstract


With the bus technology development of convenient and flexible use of powerful PC, CPU computing power of the sampling data processing, computer bus technology based on a variety of data acquisition card in the field of data collection to occupy an important position.FMC standards and the diversity of FPGA combination of data acquisition card can be divided into more detailed FMC data acquisition module and carrier board FPGA data module, designers can design different needs of the market indicators of the FMC data acquisition module, re-use of a design different kinds of index cards containing the series of market products, while, with higher performance, more powerful new type of FPGA, designers can ensure that the FMC module is fully compatible with the existing, while the carrier board redesign can be FMC applied to different product lines. This will reduce the designer’s development time for high performance data acquisition system indexes into the market to provide a better competitive edge.The subject of the study is based on PCI-bus high-speed data acquisition, the hardware structure using FMC and the carrier board seat plates connected by VITA57 a joint approach to implementation. FMC part of the high-speed data acquisition will complete the work, the use of FPGA board containing a wealth of I / O resources will be collected by the data cache through the PCI interface transfer to the PC, data processing and analysis.In this article, I will focus on design detail FMC completed the data acquisition module, carrier board in the same time and data receiving module, PCI interface, data storage module and briefly discusses the basic circuit. Details are as follows:Data Acquisition and storage control circuit design include channel control, receiving the data of ADC, clockgenerator, trigger modules, time-based control module, data storage module and so on.High Speed Data Acquisition FMC design. It includes the A / D data acquisition circuit, clock generation and distribution circuit and trigger circuit. It also includes communication with the FPGA’s RS232, I2C communication interface.PCI interface data carrier introduced. Includes data receiving circuit, high-capacity data storage circuit and the PCI interface circuit.High-Speed PCB signal integrity analysis, system module debugging process is given some of the problems encountered, and give their own experiences .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Data collection and processing systems
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