基于FPGA的PCIe总线DMA控制器的设计与验证  

Design and Verification of DMA Controller of PCIe Based on FPGA

作　　者：李丽斯[1] 崔志华 殷晔[1] 王石记[1] 常路[1] 

机构地区：[1]北京航天测控技术有限公司,北京100041 [2]哈尔滨东方报警设备开发有限公司,哈尔滨150090

出　　处：《计算机测量与控制》2014年第4期1166-1168,共3页Computer Measurement &Control

摘　　要：PCIe总线是为了解决高速率高带宽提出的新一代总线,随着处理器技术的发展,在互连领域中,PCIe总线的使用越来越多;为了实现上位机与FPGA之间的高速数据交换,基于FPGA设计了能够高速传输数据的DMA控制器,本设计的验证是基于北京航天测控公司开发的6槽机箱、嵌入式控制器(基于PCIe总线)、以及数字I/O模块;设计实现了嵌入式控制器与数字I/O模块之间的数据传输,并且通过了验证,证明了DMA控制器功能的正确性;加入DMA控制器后,写数据传输速率达到610MB/s,提高到了原来的7倍;读数据传输速率达到492MB/s,提高到原来的11倍,满足系统的设计要求;该控制器在大带宽的数据传输中有广泛的应用。PCI Express bus is the new generation bus for resolving problem of high--speed and high data bandwidth; In order to achieve the high --speed communicating between the host computer and FPGA, it designed DMA controller with high--speed data transaction, the design is realized based on 6--slot chassis, embedded controller （based on PCIe Bus） and Digital I/O module which were designed by Aerospace Measurement ＆ Control Technology co. ltd. It completed the design and implementation of the DMA controller, and proved its correctness through the verification. The rates of writing achieved 610MB/s, and improved 7 times; The rates of reading achieved 492MB/s, and improved 11 times. It can meet the system require- ments. The DMA controller has a wide range of applications in the large bandwidth data transmission.

关 键 词：FPGA PCIe总线 DMA控制器 数据传输 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]