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Based on the PCI Express bus data transfer and storage

Author: RenLianFang
Tutor: GuHong
School: Nanjing University of Technology and Engineering
Course: Communication and Information System
Keywords: PCI Express bus PIO BMD device driver application procedure
CLC: TN957.522
Type: Master's thesis
Year: 2010
Downloads: 381
Quote: 2
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Abstract


To test and improve the performance of a radar, we need analyse of radar echo data, so we need to acquire, transfer and storage the radar data. As the radar developes nowadays, the requests of the speed for obtaining rada data and capacity for storaging data are more and more high. PCI Express bus is a serial interface bus with the highest speed currently. This paper describes a method of design and implement a PCI Express-based data transfer and storage system.In this system, data is transmitted to the memory of the computer in a high speed and saved in the hard disk of the computer through the PCI Express bus, and after this, the data which has been obtained is analysed, and the function of our system is validated. The paper first introduces the topology structure of PCI Express bus,the level of device connected to the PCIe bus, rules of transactions which include read and write requests, and configuration space for PCIe device. Then it introduces the way of design and implement of the hardware system, it includes the AD acquisition card and data transmission card, and the data transmission card is designed in a method in which we just use a FPGA. And then, according to the system functional requirements, we give the logical design of FPGA of the two circuit boards, in the AD acquisition card,we configure the board’s work mode according to the choice of parameters from user application procedure, and in the data transfer card, we mainly realize the PIO and BMD data transfer. At last, we give the design of the corresponding device driver and application for user, and we test the performance of system, analyze the data rate of Bus Master DMA and validate the system is feasible and effective by demonstrating the veracity and integrality of the data.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radar > Radar equipment,radar > Radar receiving equipment > Data,image processing and admission > Data recording , image admission
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