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《Journal of Gun Launch & Control》 2009-04
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FPGA Realization of SDRAM Controller Design in Digital System

FAN Ji,WU Xiao-yi,WANG Bin-yi,HU Jiang-feng(Northwest Instiutte of Mechanical & Electrical Engineering,Xianyang 712099,Shaanxi,China)  
In modern digital system such as target surveillance and image processing system,image data need to process and store by use of high speed and large capacity.Synchronous dynamic random access memory (SDRAM) was widely used as data buffer.Aimed at the working principle and the characteristics of time sequence,SDRAM controller implementation method was put forward based on FPGA.Using hardware description language(VHDL),the design and simulation were performed under the environment of quartus7.2,and the switching between various working states were realized.The simulation results coincide with control time sequence required by SDRAM.This design was tested on Altera's FPGA to control Micron's SDRAM,and the test results showed that SDRAM can work regularly to perform stipulated read and write. Parametric design allows the controller to have a good versatility.
【CateGory Index】: TN791
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