This document provides practical, common guidelines for incorporating PCI Express interconnect
layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10-
layer or more server baseboard designs. Guidelines and constraints in this document are intended
for use on both baseboard and add-in card PCB designs. This includes interconnects between PCI
Express devices located on the same baseboard (chip-to-chip routing) and interconnects between
a PCI Express device located “down” on the baseboard and a device located “up” on an add-in
card attached through a connector.
This document is intended to cover all major components of the physical interconnect including
design guidelines for the PCB traces, vias and AC coupling capacitors, as well as add-in card
edge-finger and connector considerations. The intent of the guidelines and examples is to help
ensure that good high-speed signal design practices are used and that the timing/jitter and
loss/attenuation budgets can also be met from end-to-end across the PCI Express interconnect.
However, while general physical guidelines and suggestions are given, they may not necessarily
guarantee adequate performance of the interconnect for all layouts and implementations.
Therefore, designers should consider modeling and simulation of the interconnect in order to
ensure compliance to all applicable specifications.
The document is composed of two main sections. The first section provides an overview of
general topology and interconnect guidelines. The second section concentrates on physical layout
constraints where bulleted items at the beginning of a topic highlight important constraints, while
the narrative that follows offers additional insight.
TheTool is highy customizable map editor(based on QT) which can be extended via LUA scripts. A first implentation is ready and can be published to the public. The editor is the perfect tool who wants to design some 3d games but don t have time to write
Displaying a large bitmap file on a dialog box, in its original size, is quite difficult in the VC++ environment. However, it is possible to display a large bitmap to a predefined area of the dialog by using the StretchBlt( ) function.The major disadvantage of this is that the clarity of the image will be lost. Check out this article for displaying large bitmaps into the desired area of your dialog box in its original size with a scrolling technique used to show the entire bitmap. 滾動(dòng)顯示位圖 在VC++環(huán)境下，在一個(gè)對(duì)話(huà)框中顯示一個(gè)原始尺寸的大小的位圖文件相當(dāng)是困難的。然而,通過(guò)使用 StretchBlt()函數(shù)一個(gè)給定的區(qū)域顯示一個(gè)大的位圖是可能的。主要的缺點(diǎn)是圖像將會(huì)失真。看了這篇通過(guò)卷動(dòng)技術(shù)顯示整個(gè)位圖技術(shù)的文章，你將能夠以它的原始尺寸在給定對(duì)話(huà)框的區(qū)域內(nèi)顯示一個(gè)大位圖。 來(lái)源: http://www.codeguru.com/bitmap/ScrollBitmap.html
This article is based in part on Bob Place s ADO is AOK (a simple ADO tutorial). Wrapper Usage This is consist of 2 classes. CDyndb : This Class manages connections and recordsets. Recordsets are organized as linked list (CList) and you can access them using their ids. CDynRec : This class is the node to populate for each recordsets. ADO封裝器類(lèi) 這篇文章一部分基于Bob Place的《ADO is AOK》 (簡(jiǎn)單的ADO指導(dǎo)) 。 包裹的用法 由2個(gè)類(lèi)組成。 類(lèi)CDyndb: 這個(gè)類(lèi)別管理連接和記錄集。記錄集是連接起來(lái)的記錄的集合，你可以通過(guò)他們的ID訪(fǎng)問(wèn)他們。 類(lèi)CDynRec: 這個(gè)類(lèi)別存放記錄集的代碼。
sheerdns is a master DNS server whose zone records are stored on a One-Record-Per-File bases. Because of this, it is the simplest of any DNS to configure, the easiest to update, and the most efficient for networks that experience a lot of updates (for example master servers for dynamic IP address ranges). You never have to restart it; any updates are available immediately without having to notify the sheerdns process. 來(lái)源: http://freshmeat.net/projects/sheerdns/?topic_id=149 sheerdns是一個(gè)主DNS服務(wù)器，它的域記錄保存在一個(gè)One-Record-Per-File（每文件一個(gè)記錄）的庫(kù)中。因此，它是最簡(jiǎn)單的DNS配制，最容易更新，對(duì)于有大量更新的網(wǎng)絡(luò)（如動(dòng)態(tài)IP地址范圍的主服務(wù)器）來(lái)說(shuō)它是最高效的。你不必重新啟動(dòng)它，任何更新不用通知對(duì)應(yīng)DNS進(jìn)程就可以立即生效。
This a wonderful reference on the In s and Out s of using Global JavaScript Variables within Brio Intelligence BQY s. 這是一個(gè)關(guān)于 Brio Intelligence BQY中使用全局 JavaScript 變量進(jìn)行輸入輸出的好參考
This hands-on, one-stop guide delivers the focused, streamlined direction you need to get your Web solutions up and running quickly. Zero in on key ASP.NET configuration details and techniques using quick-reference tables, lists, coding and more.
