原文出处:http://www.fpga4fun.com/PCI-Express4.html 感觉没什么好翻译的,都比较简单,主要讲了TLP的帧结构 In the transaction layer, we receive "packets". There is a 32-bits bus and the packets arrive on the bus (packet lengths are always multiples of 32-bits). Maybe one packe…

原文地址:http://www.fpga4fun.com/PCI-Express6.html Let's try to control LEDs from the PCI Express bus. Xilinx's "Endpoint Block Plus" core allows us to work at the transaction layer level, so it's just going to take us a few lines of code.Instead of…

原文出处:http://www.fpga4fun.com/PCI-Express3.html Packetized transactions PCI express is a serial bus. Or is it? From the computer's perspective, it is a conventional bus where read and write transactions can be achieved. The trick is that all operation…

http://xillybus.com/tutorials/pci-express-tlp-pcie-primer-tutorial-guide-1 Down to the TLP: How PCI express devices talk (Part I) Foreword While I was writing the Xillybus IP core for PCI express, I quickly found out that it’s very difficult to start…

1.1课题研究背景 在目前高速发展的计算机平台上,应用软件的开发越来越依赖于硬件平台,尤其是随着大数据.云计算的提出,人们对计算机在各个领域的性能有更高的需求.日常生活中的视频和图像信息包含大量的数据,对此计算机对这些海量信息的实时处理.高效传输和大容量存储都是今后计算机发展的趋势和目标. 总线是由多个部件和设备所共享的,是计算机通信接口的重要技术.为了简化硬件电路设计.简化系统结构,通常用一组线路配置适当的接口电路,与各部件和外围设备连接,这组共用的连接线路称为总线.采用总线结构便于部件和设备…

http://xillybus.com/tutorials/pci-express-tlp-pcie-primer-tutorial-guide-2 Data Link Layer Packets Aside from wrapping TLPs with its header (2 bytes) and adding a CRC at the end (LCRC actually, 4 bytes), the Data Link layer runs packets of its own fo…

How PCI Express Works | PCIe工作原理 PCI Express is a high-speed serial connection that operates more like a network than a bus. Learn how PCI Express can speed up a computer and replace the AGP and view PCI Express pictures. Peripheral Component Interco…

一.PCI总线的信号定义 PCI总线是一条共享总线,在一条PCI总线上可以挂接多个PCI设备.这些PCI设备通过一系列信号与PCI总线相连,这些信号由地址/数据信号.控制信号.仲裁信号.中断信号等多种信号组成. PCI总线是一个同步总线,每一个设备都具有一个CLK信号,其发送设备与接收设备使用这个CLK信号进行同步数据传递.PCI总线可以使用33MHz或者66MHz的时钟频率,而PCI-X总线可以使用133MHz.266MHz或者533MHz的时钟频率. 除了RST#.INTA~D#.PME#和…

一 .PCI总线的基本知识 PCI总线作为处理器系统的局部总线,主要目的是为了连接外部设备,而不是作为处理器的系统总线连接Cache和主存储器.但是PCI总线.系统总线和处理器体系结构之间依然存在着紧密的联系. (1) PCI总线空间与处理器空间隔离 PCI设备具有独立的地址空间,即PCI总线地址空间,该空间与存储器地址空间通过HOST主桥隔离.处理器需要通过HOST主桥才能访问PCI设备,而PCI设备需要通过HOST主桥才能主存储器.在HOST主桥中含有许多缓冲,这些缓冲使得处理器总线与PCI…

原文地址:http://www.fpga4fun.com/PCI-Express5.html Xilinx makes using PCI express easy - they provide a free PCI Express core (called "Endpoint Block Plus") and a wizard to configure it, all that in their free version of ISE - ISE WebPack. So let's…