ExpressPCB 是一款免費(fèi)的PCB設(shè)計(jì)軟件，簡(jiǎn)單實(shí)使。可以畫(huà)雙層板。 Our Free PCB software is a snap to learn and use. For the first time, designing circuit boards is simple for the beginner and efficient for the professional. Our board manufacturing service makes top quality two and four layer PCBs. Use our MiniBoard service and pay only $51 for three boards (plus $8 shipping).
標(biāo)簽： ExpressPCB PCB 設(shè)計(jì)軟件
上傳時(shí)間： 2013-11-15
上傳用戶：lchjng
ExpressPCB 是一款免費(fèi)的PCB設(shè)計(jì)軟件，簡(jiǎn)單實(shí)使。可以畫(huà)雙層板。 Our Free PCB software is a snap to learn and use. For the first time, designing circuit boards is simple for the beginner and efficient for the professional. Our board manufacturing service makes top quality two and four layer PCBs. Use our MiniBoard service and pay only $51 for three boards (plus $8 shipping).
標(biāo)簽： ExpressPCB PCB 設(shè)計(jì)軟件
上傳時(shí)間： 2013-10-09
上傳用戶：1047385479
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.
標(biāo)簽： pci PCB 設(shè)計(jì)規(guī)范
上傳時(shí)間： 2014-01-24
上傳用戶：s363994250
一個(gè)將數(shù)字轉(zhuǎn)換成文本（例如32轉(zhuǎn)換成thirty two）
標(biāo)簽： thirty two 轉(zhuǎn)換成 數(shù)字
上傳時(shí)間： 2013-12-09
上傳用戶：chongcongying
Persistence Layer s ebook and source code.
標(biāo)簽： Persistence source Layer ebook
上傳時(shí)間： 2015-01-14
上傳用戶：咔樂(lè)塢
Enter Two Numbers:26 35 the sum is 61 Enter Two Numbers:26 35 the sum is 61
標(biāo)簽： Numbers Enter Two the
上傳時(shí)間： 2014-01-13
上傳用戶：1159797854
ngrep strives to provide most of GNU grep s common features, applying them to the network layer. ngrep is a pcap-aware tool that will allow you to specify extended regular or hexadecimal expressions to match against data payloads of packets. It currently recognizes TCP, UDP and ICMP across Ethernet, PPP, SLIP, FDDI, Token Ring and null interfaces, and understands bpf filter logic in the same fashion as more common packet sniffing tools, such as tcpdump and snoop.
標(biāo)簽： applying features network strives
上傳時(shí)間： 2014-01-15
上傳用戶：bcjtao
Scott W. Ambler在1998年寫(xiě)的關(guān)于ORM Persistence Layer的詳細(xì)設(shè)計(jì)論文，本文檔張笑猛翻譯的中文版．
標(biāo)簽： W. Persistence Ambler Scott
上傳時(shí)間： 2014-01-26
上傳用戶：lgnf
根據(jù)Scott W. Ambler在1998年寫(xiě)的關(guān)于ORM Persistence Layer的詳細(xì)設(shè)計(jì)論文的設(shè)計(jì)思路,Artem Rudoy 開(kāi)發(fā)了一個(gè)開(kāi)源的ORM實(shí)現(xiàn) -- PL(Persistence Layer)開(kāi)源項(xiàng)目。
標(biāo)簽： W. Persistence ORM Persist
上傳時(shí)間： 2013-12-17
上傳用戶：阿四AIR
Simple DirectMedia Layer - Simple DirectMedia Layer 是一個(gè)跨平臺(tái)的多媒體庫(kù)設(shè)計(jì)用來(lái)提供快速圖形framebuffer和音頻驅(qū)動(dòng)。應(yīng)用MPEG為軟件，模擬器或其他流行的游戲回放聲音。支持Linux, Win32, BeOS, MacOS, Solaris, IRIX, and FreeBSD
標(biāo)簽： DirectMedia Simple Layer framebuffer
上傳時(shí)間： 2013-12-23
上傳用戶：cjl42111
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