基于AM335x的工業自動化應用 etherCAT , ETHERNET/ip
上傳時間: 2019-10-18
上傳用戶:xcpwr
A decade ago, I first wrote that people moved, and networks needed to adapt to the reality that people worked on the go. Of course, in those days, wireless LANs came with a trade-off. Yes, you could use them while moving, but you had to trade a great deal of throughput to get the mobility. Although it was possible to get bits anywhere, even while in motion, those bits came slower. As one of the network engineers I worked with put it, “We’ve installed switched gigabit ETHERNET everywhere on campus, so I don’t understand why you’d want to go back to what is a 25-megabit hub.” He un- derestimated the allure of working on the go.
上傳時間: 2020-05-26
上傳用戶:shancjb
This book addresses two aspects of network operation quality; namely, resource management and fault management. Network operation quality is among the functions to be fulfilled in order to offer quality of service, QoS, to the end user. It is characterized by four parameters: – packet loss; – delay; – jitter, or the variation of delay over time; – availability. Resource management employs mechanisms that enable the first three parameters to be guaranteed or optimized. Fault management aims to ensure continuity of service.
標簽: ETHERNET Networks MPLS and IP
上傳時間: 2020-05-27
上傳用戶:shancjb
C10018_RTL8201CP-VD-LF_2012-11-22.PDFSINGLE-CHIP/SINGLE-PORT 10/100M FAST ETHERNET PHYCEIVER (With Auto Crossover) DATASHEET
標簽: rtl8201cp
上傳時間: 2022-01-13
上傳用戶:xsr1983
現在我們介紹一種基于USB物理線纜的以太網連接。只需要一根USB線,復用之前的DFU固件下載接口,將Windows主機與STM32MP1連接起來構成TCP/IP網絡。本文介紹了基于STM32MP1的便捷網絡配置,能夠提高開發STM32MP1的工作效率。
上傳時間: 2022-03-06
上傳用戶:
本實驗將實現 FPGA 芯片和 PC 之間進行千兆以太網數據通信, 通信協議采用 ETHERNET UDP 通信協議。 FPGA 通過 GMII 總線和開發板上的 Gigabit PHY 芯片通信, Gigabit PHY芯片把數據通過網線發給 PC
上傳時間: 2022-06-03
上傳用戶:得之我幸78
第 1 章,系統概述,包括原理、選型、安裝和接線第 2 章,編程入門,實現用最簡單的程序控制一套硬件。第 3 章, TwinCAT 開發環境的深入介紹,不做練習,僅供查詢。第 4 章,操作系統和硬件,包括系統備份、桌面接管等工具。第 5 章,常用功能:包括掉電保持、數據存儲、配方功能等第 6 章, TwinCAT 庫文件,重點介紹溫控、 PID、 OS 功能擴展、 EtherCAT 診斷和配置第 7 章, 連接 IO 模塊,介紹各種 IO 模塊的特殊用法。第 8 章, 連接其它 TwinCAT 系統,包括 ADS 通訊和 Realtime ETHERNET第 9 章, 連接第三方設備 ,包括與儀表、驅動、觸摸屏、視覺系統的各種通訊。第 10 章, 連接第三方 PLC , TwinCAT 作為現場總從站集成到其它 PLC 中。第 11 章, HMI 解決方案,包括觸摸屏、組態軟件、高級語言程序和 TwinCAT HMI第 12 章, 連接企業數據庫,通過 Tc Database Server 實現 PLC 與數據庫的通訊。第 13 章, 特殊 IO 模塊(待填充)第 14 章,從 TwinCAT 2 到 TwinCAT 3。講解 Tc 3.0 與 Tc 2.0 的區別。第 15 章,附錄,包括 PLC 編程手冊、 簡明安裝指南、 Codesys 中文幫助
標簽: twincat
上傳時間: 2022-06-13
上傳用戶:
Chapter 1:Introduction and Overview Chapter 2:Switches,Buttons,and Knob 開關按鈕Chapter 3:Clock Sources 時鐘脈沖源Chapter 4:FPGA Configuration Options 配置Chapter 5:Character LCD Screen LCD顯示屏特性Chapter 6:VGA Display Port VGA接口——接到顯示器上Chapter 7:RS-232 Serial Ports RS-232接口——接器件Chapter 8:PS/2 Mouse/Keyboard Port PS/2鼠標鍵盤接口Chapter 9:Digital to Analog Converter(DAC)D/A接口Chapter 10:Analog Capture Circuit 模擬捕獲電路Chapter 11:Intel StrataFlash Parallel NOR Flash PROM Chapter 12:SPI Serial Flash 串行外圍接口系列閃存Chapter 13:DDR SDRAM 內存Chapter 14:10/100 ETHERNET Physical Layer Interface以太網物理層接口Chapter 15:Expansion Connectors 擴展接口Chapter 16:XC2C64A CoolRunner-II CPLDChapter 17:DS2432 1-Wire SHA-1 EEPROMSpartan-3E入門實驗板使設計人員能夠即時利用Spartan-3E系列的完整平臺性能。設備支持:Spartan-3E、CoolRunner-ll關鍵特性:Xilinx器件:Spartan-3E(50萬門,XC3S500E-4FG320C),CoolRunnerTM-lI與Platform Flash時鐘:50MHz晶體時鐘振蕩器存儲器:128Mbit 并行Flash,16 Mbit SPI Flash,64MByte DDR SDRAM連接器與接口:以太網10/100Phy,JTAG USB下載,兩個9管腳RS-232串行端口,PS/2類型鼠標/鍵盤端口,帶按鈕的旋轉編碼器,四個滑動開關,八個單獨的LED輸出
標簽: Spartan-3E
上傳時間: 2022-06-19
上傳用戶:kingwide
以太網供電(POE)概述POE(Power Over ETHERNET)指的是在現有的以太網 Cat.5布線基礎架構不作做何改動的情況下,在為一些基于IP的終端(如IP電話機、無線局域網接入點AP、網絡攝像機等)傳輸數據信號的同時,還能為此類設備提供直流供電的技術。POE技術能在確保現有結構化布線安全的同時保證現有網絡的正常運作,最大限度地降低成本。POE也被稱為基于局域網的供電系統(POL,Power overLAN)或有源以太網(Active ETHERNET),有時也被簡稱為以太網供電,這是利用現存標準以太網傳輸電纜的同時傳送數據和電功率的最新標準規范,并保持了與現存以太網系統和用戶的兼容性。IEEE802.3af標準是基于以太網供電系統POE的新標準,它在IEEE802.3的基礎上增加了通過網線直接供電的相關標準,是現有以太網標準的擴展,也是第一個關于電源分配的國際標準。IEEE在1999年開始制定該標準,最早參與的廠商有3Com,Intel,PowerDsine,Nortel,Mitel和National Semiconductor。但是,該標準的缺點一直制約著市場的擴大。直到2003年6月,IEEE批準了802.3af標準,它明確規定了遠程系統中的電力檢測和控制事項,并對路由器、交換機和集線器通過以太網電纜向IP電話、安全系統以及無線LAN接入點等設備供電的方式進行了規定。IEEE802.3af的發展包含了許多公司專家的努力,這也使得該標準可以在各方面得到檢驗。
標簽: POE
上傳時間: 2022-06-25
上傳用戶:
Overview The MT7628 router-on-a-chip includes an 802.11n MAC and baseband,a 2.4 GHz radio and FEM,a 575/580MHz MIPS? 24K% CPU core,a 5-port 10/100 fast ETHERNET switch. The MT7628 includes everything needed to build an AP router from a single chip. The embedded high performance CPU can process advanced applications effortlessly, such as routing, security and VolP. The MT7628 also includes a selection of interfaces to support a variety of applications, such as a USB port for accessing external storage.Features· Embedded MIPS24KEc(575/580 MHz) with 64KBl-Cache and 32 KB D-Cache·2T2R 2.4 GHz with 300 Mbps PHY data rate· Legacy 802.11b/g and HT 802.11n modes·20/40 MHz channel bandwidth· Reverse Data Grant(RDG)· Maximal Ratio Combining(MRC)· Space Time Block Coding(STBC)· MCM 8 Mbytes DDR1 KGD(MT7628KN)
標簽: mt7628
上傳時間: 2022-07-18
上傳用戶: