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…

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…

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…

来源:http://forum.ubuntu.org.cn/viewtopic.php?f=116&t=463646 1.执行如下命令 uname -a sudo lspci -knn sudo lshw -C network ifconfig ping 192.168.1.1 -c 4 tail /var/log/syslog -n 20 2.查看状态: gofox@gofox-To-be-filled-by-O-E-M:~$ uname -aLinux gofox-To-be-filled-…

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…

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…

0.写在前面 本文首发于公众号[两猿社],后续将在公众号内持续更新~ 其实算下来接触PCIe很久了,但是由于之前换工作,一直没有系统的学习和练手项目,现在新项目买了Synopsys的PCIe IP,总算是有机会和时间来整理学习了~~~ 目前PCI Express总线取代PCI总线成为PC局部总线的主流,且PCIe在很大程度上继承了PCI的设计思想,可以说PCI是PCIe的基础,本文所重点讲解的Posted和Non-Posted传输也是基于PCI总线讲解,但在PCIe总线中绝大部分是相同的,PCI…

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…

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…