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…
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…
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…
在FPGA4FUN上看到一篇介绍PCI-E的帖子,简单易懂,适合入门,特地搬过来 原文地址:http://www.fpga4fun.com/PCI-Express.html 前言: As PCI Express becomes common place in high-end FPGAs, let's see how easy FPGA vendors made the technology available. 由于PCI-E在高端FPGA中变得越来越常见,我们来看看FPGA厂商们是怎样让它很…
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…
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-…
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-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…