CH372DSK.ZIP 2005-07-10 332KB 1.1 · CH372+MCU的U盤方案,適用于CH372或者CH375, 使用普通的MCS51單片機(jī)和SRAM或者串行EEPROM或者閃存 自行設(shè)計(jì)專用U盤或閃存盤。含源程序及相關(guān)技術(shù)規(guī)范文檔, 正式應(yīng)用建議參考小容量U盤控制芯片CH331的資料 -------------------------------------------------------------------------------- CH341EVT.ZIP 2006-01-12 722KB 1.1 · CH341綜合功能評估板的使用說明及應(yīng)用參考, 用于USB轉(zhuǎn)異步串口、轉(zhuǎn)打印口或EPP并口、轉(zhuǎn)2線和4線串口, 演示數(shù)字I/O控制、讀寫兼容I2C的EEPROM,含識別CH341串口 的源程序、外部EEPROM配置工具、演示和速度測試源程序等 -------------------------------------------------------------------------------- CH452IF.ZIP 2006-08-23 12KB 1.1 · CH452與單片機(jī)接口的C語言和ASM語言的參考子程序 支持4線接口/兼容CH451/兼容SPI,支持2線接口/兼容IIC, 支持真正2線接口/兼容IIC/使用SDA作為中斷請求 -------------------------------------------------------------------------------- USB_SER.PDF 2006-04-21 236KB 1.2 · USB轉(zhuǎn)串口Serial模塊的說明,用于USB轉(zhuǎn)RS232串口, USB轉(zhuǎn)異步串口UART、USB轉(zhuǎn)兩線串口(兼容IIC/I2C), 異步串口驅(qū)動(dòng)程序請另下載CH341SER.ZIP或CH341SER.EXE 兩線串口驅(qū)動(dòng)程序請另下載CH341PAR.ZIP或CH341P...... -------------------------------------------------------------------------------- CH341PAR.EXE 2006-01-12 96KB 2.0 · USB轉(zhuǎn)并口CH341的WINDOWS驅(qū)動(dòng)程序和DLL動(dòng)態(tài)庫的安裝包 支持WINDOWS 98/ME/2000/XP,支持USB轉(zhuǎn)EPP/MEM并口, 支持USB轉(zhuǎn)同步串口:IIC/I2C、SPI等, 用于隨產(chǎn)品發(fā)行到最終用戶 -------------------------------------------------------------------------------- CH341SER.EXE 2006-06-05 119KB 2.3 · USB轉(zhuǎn)串口CH341的WINDOWS 98/ME/2K/XP驅(qū)動(dòng)程序的安裝包 在計(jì)算機(jī)端將USB設(shè)備仿真為標(biāo)準(zhǔn)Serial串口設(shè)備COM? 用于隨產(chǎn)品發(fā)行到最終用戶,支持CH340和CH341 -------------------------------------------------------------------------------- CH372DRV.EXE 2005-12-15 91KB 2.4 · CH372或CH375的Windows驅(qū)動(dòng)程序和DLL動(dòng)態(tài)庫的安裝包 可以用于內(nèi)置及外置固件模式,支持WINDOWS98/ME/2000/XP 用于隨產(chǎn)品發(fā)行到最終用戶 -------------------------------------------------------------------------------- SOURCE37.ZIP 2005-07-15 59KB 0.1 · USB芯片CH372或CH375(在USB設(shè)備模式時(shí))的 簡化版WINDOWS驅(qū)動(dòng)程序源程序和DLL動(dòng)態(tài)鏈接庫的源程序 僅供了解和學(xué)習(xí)USB設(shè)備的驅(qū)動(dòng)程序及動(dòng)態(tài)庫的開發(fā)過程 建議普通用戶直接下載正式版的驅(qū)動(dòng)程序包CH372DRV使用 -------------------------------------------------------------------------------- FORMATUD.EXE 2006-04-25 56KB 1.2 · 可移動(dòng)磁盤格式化工具,能夠提高磁盤空間利用率 用于格式化小容量U盤,支持以CH331為控制芯片的U盤, 也可用于將U盤格式化為1.44MB軟盤格式 README.TXT 2006-02-28 1KB 1.0 · 仿軟驅(qū)接口的U盤驅(qū)動(dòng)器的說明 仿3.5英寸1.44MB軟盤驅(qū)動(dòng)器,連線和用法同普通軟驅(qū), 用于直接替換PC機(jī)/工控機(jī)/嵌入式系統(tǒng)/工業(yè)設(shè)備中的 普通軟驅(qū)FDD,純硬件,應(yīng)用程序軟件無需修改 -------------------------------------------------------------------------------- CH374LIB.ZIP 2006-09-01 1.26MB 1.1 · CH374的U盤文件級操作子程序庫及相關(guān)例子源程序 支持FAT12/FAT16/FAT32的閃存盤和移動(dòng)硬盤 支持MCS51/AVR/MSP430/ARM/80X86等單片機(jī)和DSP -------------------------------------------------------------------------------- CH374EVT.ZIP 2006-09-01 493KB 1.0 · CH374評估板說明及單片機(jī)使用U盤移動(dòng)存儲(chǔ)的應(yīng)用參考 單片機(jī)通過CH374讀寫U盤/閃存盤文件或控制其它USB設(shè)備 提供U盤文件級子程序庫的說明 -------------------------------------------------------------------------------- CH375HM.ZIP 2005-12-14 704KB 2.4 · U盤文件讀寫模塊的說明和相關(guān)例子源程序 嵌入式/單片機(jī)系統(tǒng)大容量/海量數(shù)據(jù)移動(dòng)存儲(chǔ)的解決方案 支持常用的FAT12/FAT16/FAT32文件系統(tǒng),支持8位并口, 支持I2C兩線串口,支持各種波特率TTL/RS232異步串口等 -------------------------------------------------------------------------------- README.PDF 2005-06-15 184KB 2.3 · USB芯片的電路和PCB設(shè)計(jì)參考及重要注意事項(xiàng) 含CH375、CH372、CH341等芯片的電路設(shè)計(jì)說明 涉及工作穩(wěn)定性和抗干擾以及USB-HOST帶電熱插拔 -------------------------------------------------------------------------------- CH375HST.ZIP 2005-12-29 122KB 1.2 · CH375主機(jī)方式USB-HOST的應(yīng)用參考及相關(guān)例子程序 兩個(gè)單片機(jī)系統(tǒng)通過USB交換數(shù)據(jù)或控制USB打印機(jī)等設(shè)備 -------------------------------------------------------------------------------- CH375HMU.ZIP 2005-12-29 185KB 2.9 · U盤文件讀寫模塊的USB升級和配置工具以及串口演示工具 通過USB連接計(jì)算機(jī)就可以升級U盤模塊中的程序, 配置U盤模塊的接口方式、功能以及串口波特率等 含最新版本的模塊目標(biāo)程序、下載工具軟件及演示工具軟件 -------------------------------------------------------------------------------- CH341SER.ZIP 2006-06-05 98KB 2.3 · USB轉(zhuǎn)串口CH341的WINDOWS 98/ME/2000/XP驅(qū)動(dòng)程序 在計(jì)算機(jī)端仿真標(biāo)準(zhǔn)Serial串口設(shè)備COM?, 含串口監(jiān)控調(diào)試工具,支持CH341和CH340 -------------------------------------------------------------------------------- CH341PRT.ZIP 2005-12-29 42KB 1.1 · USB轉(zhuǎn)打印口CH341的WINDOWS驅(qū)動(dòng)程序 將普通并口打印機(jī)轉(zhuǎn)換為USB打印機(jī),支持WINDOWS 98/ME (WINDOWS 2000/XP不需要安裝驅(qū)動(dòng)程序) CH341PAR.ZIP 2006-01-12 33KB 2.0 · USB轉(zhuǎn)并口CH341的WINDOWS驅(qū)動(dòng)程序和DLL動(dòng)態(tài)庫 支持WINDOWS 98/ME/2000/XP,支持USB轉(zhuǎn)EPP/MEM并口, 支持USB轉(zhuǎn)同步串口:IIC/I2C、SPI等, 可用于USB轉(zhuǎn)異步串口代替仿真串口驅(qū)動(dòng),參考INF說明 -------------------------------------------------------------------------------- CH365ED.ZIP 2004-11-28 1.28MB 1.2 · PCI總線的大容量擴(kuò)展ROM應(yīng)用方案 用于PCI電子盤和WINDOWS終端卡,支持無盤啟動(dòng), 可仿真軟盤和小容量硬盤,支持DOS操作系統(tǒng)
上傳時(shí)間: 2015-05-14
上傳用戶:lxclxc72
在LTE系統(tǒng)中采用自適應(yīng)軟頻率復(fù)用的方法,有效的提高了邊緣區(qū)域的SINR以及整體的性能。
上傳時(shí)間: 2015-11-23
上傳用戶:wang1234
3GPP release13 LAA協(xié)議原文。
上傳時(shí)間: 2016-05-30
上傳用戶:yanfuguo
詳細(xì)描述TD-LTE基本原理, 是無線通信經(jīng)典教材
標(biāo)簽: TD-LTE技術(shù)原理·
上傳時(shí)間: 2016-06-13
上傳用戶:mikexjmeng
關(guān)于通信專業(yè)的信令與協(xié)議,講的很詳細(xì),可以學(xué)到很多知識的總結(jié)資料。
標(biāo)簽: 016.102 TD-LTE DTM PX3 協(xié)議 信令
上傳時(shí)間: 2017-10-18
上傳用戶:guomiao
物理上行控制信道PUCCH,用于承載上行鏈路控制信息,根據(jù)所承載的上行控制信息的不同,LTE物理層支持不同的PUCCH格式,采用不同的發(fā)送方式。
上傳時(shí)間: 2018-01-04
上傳用戶:wwjj173
3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Further advancements for E-UTRA; LTE-Advanced feasibility studies in RAN WG4 (Release 9)
上傳時(shí)間: 2018-04-28
上傳用戶:doforfuture
由于中國電信CDMA網(wǎng)絡(luò)發(fā)展到3G 之后,沒有后續(xù)演進(jìn)路線。所以中國電信 必然全力以赴建設(shè)基于FDD的NB-IoT 網(wǎng)絡(luò),不存在選擇上的糾結(jié), 力量用在一 處。5月17日, 中國電信宣布建成全球目前 覆蓋最廣的商用新一代物聯(lián)網(wǎng)(NB-IoT) 網(wǎng)絡(luò), 實(shí)現(xiàn)31萬個(gè)基站升級。
上傳時(shí)間: 2018-06-01
上傳用戶:cc2018
In recent years, cellular voice networks have transformed into powerful packet-switched access networks for both voice communication and Internet access. Evolving Universal Mobile Telecommunication System (UMTS) networks and first Long Term Evolution (LTE) installations now deliver bandwidths of several megabits per second to individual users, and mobile access to the Internet from handheld devices and notebooks is no longer perceived as slower than a Digital Subscriber Line (DSL) or cable connection. Bandwidth and capacity demands, however, keep rising because of the increasing number of people using the networks and because of bandwidth-intensive applications such as video streaming. Thus, network manufacturers and network operators need to find ways to continuously increase the capacity and performance of their cellular networks while reducing the cost.
標(biāo)簽: BRINGING NETWORKS Beyond and 3G 4G
上傳時(shí)間: 2020-05-26
上傳用戶:shancjb
4G Americas is an industry trade organization composed of leading telecommunications service providers and manufacturers. The organization's mission is to advocate for and foster the advancement and full capabilities of the LTE mobile broadband technology and its evolution beyond to 5G, throughout the ecosystem's networks, services, applications and wirelessly connected devices in the Americas. 4G Americas, the voice of 5G for the Americas, is invested in leading 5G development for the Americas and maintaining the current global innovation lead in North America with LTE technology.
標(biāo)簽: Development Caribbean Broadband Markets Mobile
上傳時(shí)間: 2020-05-26
上傳用戶:shancjb
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