数字技术与应用
數字技術與應用
수자기술여응용
DIGITAL TECHNOLOGY AND APPLICATION
2015年
8期
3-7
,共5页
业青青%刁节涛%李楠%孙兆林
業青青%刁節濤%李楠%孫兆林
업청청%조절도%리남%손조림
PCI Express 3.0%高速采集回放%DMA%FPGA XILINX%数据传输
PCI Express 3.0%高速採集迴放%DMA%FPGA XILINX%數據傳輸
PCI Express 3.0%고속채집회방%DMA%FPGA XILINX%수거전수
PCI Express 3.0%High speed acquisition and playback%DMA%FPGA,XILINX%data transmission
PCI Express 3.0是最新的高速数据传输协议。本文介绍了基于FPGA的PCI Express 3.0的高速传输系统的DMA控制器结构,并详细说明了DMA控制器的逻辑设计。DMA控制器基于Xilinx公司的Virtex-7 FPGA Gen3 Integrated Block for PCI Express硬核开发,封装成标准FIFO结构,这样可以方便地连接采集数据源和回放目标系统。为了验证设计的功能及可靠性,本文搭建了基于PCI Express 3.0 x8通道的高速采集回放验证系统。实验表明,DMA控制器达到设计指标。当DMA传输大小为16MB时,8通道的DMA读/写速度均能达到4900 MBytes/s,可满足大部分超高速数据采集回放系统传输的需要。
PCI Express 3.0是最新的高速數據傳輸協議。本文介紹瞭基于FPGA的PCI Express 3.0的高速傳輸繫統的DMA控製器結構,併詳細說明瞭DMA控製器的邏輯設計。DMA控製器基于Xilinx公司的Virtex-7 FPGA Gen3 Integrated Block for PCI Express硬覈開髮,封裝成標準FIFO結構,這樣可以方便地連接採集數據源和迴放目標繫統。為瞭驗證設計的功能及可靠性,本文搭建瞭基于PCI Express 3.0 x8通道的高速採集迴放驗證繫統。實驗錶明,DMA控製器達到設計指標。噹DMA傳輸大小為16MB時,8通道的DMA讀/寫速度均能達到4900 MBytes/s,可滿足大部分超高速數據採集迴放繫統傳輸的需要。
PCI Express 3.0시최신적고속수거전수협의。본문개소료기우FPGA적PCI Express 3.0적고속전수계통적DMA공제기결구,병상세설명료DMA공제기적라집설계。DMA공제기기우Xilinx공사적Virtex-7 FPGA Gen3 Integrated Block for PCI Express경핵개발,봉장성표준FIFO결구,저양가이방편지련접채집수거원화회방목표계통。위료험증설계적공능급가고성,본문탑건료기우PCI Express 3.0 x8통도적고속채집회방험증계통。실험표명,DMA공제기체도설계지표。당DMA전수대소위16MB시,8통도적DMA독/사속도균능체도4900 MBytes/s,가만족대부분초고속수거채집회방계통전수적수요。
This paper introduces a new structure of DMA control er based on FPGA high speed transmission system with PCI Express 3.0, explains the logical design of DMA control er in detail and packages it into a standard FIFO structure, which can conveniently adopt to data acquisition or playback system. In order to verify the function and reliability of the design, a high-speed data acquisition and playback system based on PCI Express 3.0 X8 channel is built. The experiments show that the performance of the system has achieved the design specifications. The read/write speed of PCI Express 3.0 X8 channel DMA control er can reach 4,900MBytes/s when the size of the DMA is 16MB, which can meet the transmission needs of most of the high-speed data acquisition and playback systems.
