發(fā)布時(shí)間：2018-04-04 01:03

  本文選題：現(xiàn)場(chǎng)可編程門(mén)陣列　切入點(diǎn)：固態(tài)盤(pán)　出處：《計(jì)算機(jī)應(yīng)用》2017年05期

【摘要】：針對(duì)采用DDR3接口來(lái)設(shè)計(jì)的新一代閃存固態(tài)盤(pán)(SSD)需要完成與內(nèi)存控制器進(jìn)行通信與交互的特點(diǎn),提出了基于現(xiàn)場(chǎng)可編程門(mén)陣列(FPGA)的DDR3協(xié)議解析邏輯方案。首先,介紹了DDR3內(nèi)存工作原理,理解內(nèi)存控制器對(duì)存儲(chǔ)設(shè)備的控制機(jī)制;然后,設(shè)計(jì)了接口協(xié)議解析邏輯的總體架構(gòu),采用FPGA實(shí)現(xiàn)并對(duì)其中的各個(gè)關(guān)鍵技術(shù)點(diǎn),包括時(shí)鐘、寫(xiě)平衡、延遲控制、接口同步控制等進(jìn)行詳細(xì)闡述;最后,通過(guò)modelsim仿真并進(jìn)行板級(jí)驗(yàn)證,證明了該設(shè)計(jì)的正確性和可行性。在性能方面,通過(guò)單次讀寫(xiě)、連續(xù)讀寫(xiě)和混合讀寫(xiě)三種模式下的數(shù)據(jù)讀寫(xiě)測(cè)試,取得了最高77.81%的DDR3接口帶寬利用率,在實(shí)際的SSD開(kāi)發(fā)過(guò)程中能夠有效提高系統(tǒng)的訪問(wèn)性能。
[Abstract]:Aiming at the need to communicate and interact with the memory controller, a new generation of flash memory solid-state disk (SSDs) designed with DDR3 interface is proposed. A DDR3 protocol parsing logic scheme based on FPGA (Field Programmable Gate Array) is proposed.First of all, the principle of DDR3 memory is introduced, and the control mechanism of memory controller to storage device is understood. Then, the architecture of interface protocol parsing logic is designed, which is implemented by FPGA and every key technology, including clock, is implemented.Write balance, delay control and interface synchronization control are described in detail. Finally, the correctness and feasibility of the design are proved by modelsim simulation and board level verification.In terms of performance, the data read and write tests in single read / write mode, continuous read / write mode and mixed read / write mode are carried out, and the maximum bandwidth utilization of DDR3 interface is 77.81%, which can effectively improve the access performance of the system in the actual SSD development process.
【作者單位】： 國(guó)防科學(xué)技術(shù)大學(xué)計(jì)算機(jī)學(xué)院;高性能計(jì)算國(guó)家重點(diǎn)實(shí)驗(yàn)室(國(guó)防科學(xué)技術(shù)大學(xué));
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(NSFC61433019,NSFC61472432)~~
【分類號(hào)】：TN791;TP333
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本文編號(hào)：1707690