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hardware中文資料

  • 如何Linux操作系統(tǒng)驅(qū)動程序編寫

    時的this引用)。 一個網(wǎng)絡(luò)設(shè)備最基本的方法有初始化、發(fā)送和接收。 deliver packets receive packets queue (dev_queue_xmit()) |them(netif_rx()) methods and variables(initialize,open,close,hard_xmit, interrupt handler,config,resources,status…) send to hardware receivce from hardware hardware media 初始化程序完成硬件的初始化、device中變量的初始化和系統(tǒng)資源的申請。發(fā)送程序是在驅(qū)動程序的上層協(xié)議層有數(shù)據(jù)要發(fā)送時自動調(diào)用的。一般驅(qū)動程序中不對發(fā)送數(shù)據(jù)進(jìn)行緩存,而是直接使用硬件的發(fā)送功能把數(shù)據(jù)發(fā)送出去。接收數(shù)據(jù)一般是通過硬件中斷來通知的。在中斷處理程序里,把硬件幀信息填入一個skbuff結(jié)構(gòu)中,然后調(diào)用netif_rx()傳遞給上層處理。 2.2 網(wǎng)絡(luò)驅(qū)動程序的基本方法 網(wǎng)

  • MOXAIR推出全新的Moxair PowerPure Hardware邏輯內(nèi)核

    lcd背光控制專業(yè)廠商moxair公司日前宣布正式推出全新的moxair powerpure hardware邏輯內(nèi)核,這一創(chuàng)新性的產(chǎn)品可節(jié)省高達(dá)70%的顯示屏能耗,從而將手機(jī)、pda、上網(wǎng)本和筆記本電腦等設(shè)備的電池續(xù)航能力大幅提升高達(dá)40%以上。 moxair獨有的content adaptive backlight control technology(內(nèi)容自適應(yīng)背光控制)技術(shù)能夠在保持顯示圖像播放質(zhì)量的同時極大降低lcd液晶顯示屏的背光能耗。moxair公司原有的主打產(chǎn)品powerpure系列是基于arm11和ti omap等嵌入式平臺實現(xiàn)的軟件應(yīng)用,此次推出的moxair powerpure hardware可獨立于軟件操作系統(tǒng),簡化了在多種平臺系統(tǒng)中的應(yīng)用,而且進(jìn)一步提升了系統(tǒng)整體節(jié)能水平。 德州儀器公司全球無線系統(tǒng)事業(yè)部經(jīng)理markus tremmel在ctia行業(yè)貿(mào)易大展上介紹ti-omap應(yīng)用moxair技術(shù)演示時表示:“moxair的powerpure技術(shù)做到了在大幅度降低能耗的同時保持了最佳的顯示質(zhì)量?!?moxair powerpure hardware作為

  • NXP汽車無線電CD/MP3解決方案

    mplete, highly integrated car radio cd / mp3 player sub-system. this cost effective and easy-to-use system solution reduces development time and cost, helping you create high quality end-products quickly and simply.this integrated and cost-effective hardware and software reference solution lets manufacturers bring high-quality car audio systems to market fast. it provides a quick and easy path for product differentiation that is vital in the highly competitive after-sales market, and it also serves the

  • 基于TinyOS的CC2420驅(qū)動組件的研究

    c2420無線收發(fā)模塊驅(qū)動組件設(shè)計作了深入的研究,以組件的形式將其硬件功能封裝成接口供上層軟件調(diào)用,實現(xiàn)了對上層軟件的硬件特征屏蔽,從而實現(xiàn)該模塊功能的軟件語言表達(dá)和兼容性較強(qiáng)的跨平臺抽象體系結(jié)構(gòu)。 引言 網(wǎng)絡(luò)節(jié)點是構(gòu)成無線傳感器網(wǎng)絡(luò)的基本單位,無線傳感器網(wǎng)絡(luò)節(jié)點有兩種常用體系結(jié)構(gòu):atmel avr處理器+tinyos[1]和msp430+tinyos[2].本文采用 atmega128l+tinyos的體系結(jié)構(gòu)。因此,cc2420驅(qū)動組件設(shè)計應(yīng)符合tinyos的硬件抽象體系結(jié)構(gòu)(hardware abstraction architecture,haa)[3].tinyos中將硬件抽象體系結(jié)構(gòu)分為3層:硬件表示層(hardware presentation layer,hpl)、硬件適配層(hardware adapation layer,hal)和硬件接口層(hardware interface layer,hil)。各層功能作用及具體設(shè)計原理在本文中作了細(xì)致的研究。cc2420是一款基于ieee 802.15.4協(xié)議的低功耗無線收發(fā)模塊。本文根據(jù)硬件抽象體系結(jié)構(gòu)的原則,對cc242

  • 數(shù)字信號控制器改善了汽車電子中馬達(dá)的控制性能

    scs are excellent at executing the complex, high-speed mathematical functions required by many automotive electronics systems. dscs, such as microchip's dspic, offer a seamless migration path and pin-for-pin compatibility, which enable the re-use of hardware and software building blocks. this combination of a 16-bit mcu with dsp capabilities enhances the performance of automotive electronic systems, while lowering system costs and enabling designers to get products to market faster. the dsc co

  • MOXAIR推出全新的Moxair PowerPure Hardware邏輯內(nèi)核

      LCD背光控制專業(yè)廠商Moxair公司日前宣布正式推出全新的Moxair PowerPure Hardware邏輯內(nèi)核,這一創(chuàng)新性的產(chǎn)品可節(jié)省高達(dá)70%的顯示屏能耗,從而將手機(jī)、PDA、上網(wǎng)本和筆記本電腦等設(shè)備的電池續(xù)航能力大幅提升高達(dá)40%以上。

      Mox...

  • Win32環(huán)境下一種通用控制軟件的實現(xiàn)方法

    ware in win32 circumstance cai wenzhai (the 39th institute,electronics science & technology group corp oration of china,xi′an,710065,china) abstract:in this paper,an universal control system software method is introduced,the method abstract hardware device with steam object, cont rol software only operate the steam objectread and write all hardware sensor d atausing each threads singly,each the event synchronize the threads, synchroni zation event is created by the interrupt,the interrupt is c

  • 系統(tǒng)級芯片設(shè)計技術(shù)

    s for programs such as the u.s. department of defense joint tactical radio system (jtrs) program. it is the industry’s first sdr kit to support partial reconfiguration and sca-enabled system-on-chip (soc). the jtrs sdr kit consists of reconfigurable hardware and software elements that are compliant with jtrs-mandated specifications, including the software communications architecture (sca). the kit leverages the low-power, high-performance digital signal processing (dsp) features of xilinx® virtex

  • 當(dāng)前計算機(jī)技術(shù)發(fā)展對基于PC機(jī)自動測試系統(tǒng)的影響

    系統(tǒng)的影響。計算機(jī)硬件的發(fā)展包括微處理器、數(shù)據(jù)采集系統(tǒng)、計算機(jī)總線、儀器總線、pc卡和外部解決方案;軟件技術(shù)的發(fā)展,包括操作系統(tǒng)、測試系統(tǒng)軟件的開發(fā)。 關(guān)鍵詞 數(shù)據(jù)采集系統(tǒng) isa總線 pci總線 儀器總線 通用串行總線(usb) 多線程 labview 虛擬儀器 computer technology advancements impactpc-based automated test system abstract:recent advancements of computer hardware and software technology impact pc-based automated test system.the advanced hardware include processor,data acquisition system,computer bus,instrument bus,pc card and external solution.the advanced software include operation system and test system so

  • 華邦電子推出新系列之省電溫度監(jiān)控芯片

    華邦電子推出全新系列之高準(zhǔn)度省電溫度監(jiān)測芯片(hardware monitoring ic)-w83l771awg/773g/775g,該系列產(chǎn)品配合可程序化切換速率(programmable conversion rate)及待命模式(standby mode)的親和設(shè)計,有效降低工作電流,提供高效能微處理器的運(yùn)算系統(tǒng),例如筆記本計算機(jī)、桌上型計算機(jī)及服務(wù)器絕佳的省電優(yōu)勢。 w83l771awg/773g/775g系列產(chǎn)品除了本身即為一靈敏的溫度傳感器,w83l771awg再搭配一組遠(yuǎn)程溫度傳感器,共提供兩組精準(zhǔn)的溫度偵測器;w83l773g/775g則另外搭配兩組的遠(yuǎn)程溫度傳感器,共提供三組精準(zhǔn)的溫度偵測器,能有效提供對溫度敏感的系統(tǒng)環(huán)境最佳的保護(hù)與監(jiān)控。 w83l771awg/775g系列除了監(jiān)控溫度,使用者亦可依本身需求設(shè)定臨界溫度。當(dāng)監(jiān)控溫度超過臨界溫度時,芯片會發(fā)出過溫警示訊號,使用者可根據(jù)此一警示訊號啟動各項過溫保護(hù)裝置,甚或關(guān)閉系統(tǒng)以免系統(tǒng)受損。此外,考慮噪聲對溫度量測準(zhǔn)確度的影響,提供遠(yuǎn)程溫度傳感器一個噪聲過濾器,能有效將噪聲對溫度量測準(zhǔn)確度的干擾降到最低。本系列產(chǎn)品

  • BSE Group成立BSE Tech 擴(kuò)展前端設(shè)備市場

    group 首席執(zhí)行官兼總裁 doug elder 表示。 bse tech 已經(jīng)在亞利桑那州坦普簽署協(xié)議長期租賃75,000平方英尺的設(shè)施,較 asia tech 的原有設(shè)施面積擴(kuò)大了一倍。新的地點還將擁有15,000平方英尺的清潔室,目前正在建設(shè)中。asia tech 總裁 francis colligan 將加入 bse tech 擔(dān)任副總裁。asia tech 的全體員工現(xiàn)在成為 bse tech 的一部分。 “透過我們的 bse tech 和 test advantage hardware 公司,bse group具有強(qiáng)大的前端和后端設(shè)備及解決方案,已在半導(dǎo)體行業(yè)作好充分準(zhǔn)備?!眀se group 執(zhí)行副總裁 colin scholefield 表示,“此外,這兩家公司為我們提供靈活的設(shè)備和融資模式,這是我們在去年收購 test advantage hardware 時引入的。在過去6個月中,我們公司通過這種商業(yè)模式經(jīng)歷了強(qiáng)勁的增長。我們已經(jīng)完成了前端設(shè)備市場的幾筆交易,并熱切期望 bse tech 將在這個市場快速擴(kuò)張?!?/p>

  • SST89C58電子盤電路及代碼

    相關(guān)元件pdf下載:sst89c58 74hc573 reference design for sst ata-disk chip into 8051 microcontrollerapplication noteabstract: this application note introduces the hardware and firmware of reference design for sst ata-disk chip sst58sd/ldxxx into sst flashflex51 sst89c54/58 (8051 compatible microcontroller).1. hardware connections: please reference to attached schematic diagram for hardware connections. sst ata-disk chip (adc) sst58sd/ldxxx only supports one working mode, ie. ata/i

  • Easy-Downloader V1.1 with SDCC

    ce. after i succeeded writing a new firmware of xtimer and easy-downloader v1.1 with sdcc. i cannot stop preparing a new page that gives the idea how to use sdcc and of course it's time to renovate my old project with orcad. for now i can design the hardware, draw a schematic, write the firmware and layout the pcb. so i think why shouldn't begin with easy-downloader. since the programmer board will enable learning and developing the small project with a cheap 20-pin mcu easily. figure 1: complete hardw

  • xTimer V1.0

    as a preset time value that was commonly used, e.g. -1, 0, 3, 5, 10, 15, 20, 25. when time-out, display will show 0, and the output bit is activated. the optional two buzzers are for timer1 and timer2 alarm. i made this output alarm for kitchen use. hardware schematic complete schematic is shown in fig 2. the mcu is at89c4051 with 11.0592mhz xtal. the max7219 needs only three signals, clk, din and load. these signals are software generated assembly code. you may learn how assembly code interface with c

  • 中輝盛電子 聯(lián)發(fā)科技推出無線連接四合一單芯片MT6620

    : 低功耗、小封裝和高性能的wi-fi/藍(lán)牙/gps/fm 解決方案 wi-fi 802.11 a/b/g/n 雙頻單流 (20/40mhz),集成雙頻lna 和2.4ghz pa 集成pa,支持藍(lán)牙4.0+hs  支持gps/galileo/qzss/sbas,-165dbm tracking sensitivity fm tx/rx,支持rds/rbds 支持wi-fi direct 和wapi hardware encryption  支持fm over bluetooth plc (packet loss concealment) 技術(shù),實現(xiàn)卓越音頻質(zhì)量 先進(jìn)的alwayslocatetm location awareness 技術(shù),超低功耗 包括單sdio的靈活host interfaces,適于所有的無線功能 歡迎轉(zhuǎn)載,信息來自維庫電子市場網(wǎng)(www.udpf.com.cn)

  • 自己動手制造at89c51編程器 (英文)

    atmel 89 series flash microcontroller programmer ver 3.0 introductionthis programmer was designed in view of to be flexible, economical and easy to built, the programmer hardware utilizes the standard ttl series parts and no special components are used. the programmer is interfaced with the pc parallel port and there is no special requirement for the pc parallel port, so the older computers can also be used with this programmer. supported devicesthe programmer software supports the foll

  • 編譯VIVI的時候出了點問題,請教一下,多謝

    deo/video.o \ lib/priv_data/priv_data.o \ net/net.o \ \ -o vivi-elf -l/usr/local/arm/3.3.2/lib/gcc-lib/arm-linux/3.3.2 -lgcc -lcgnu ld version 2.14.90 20030820/usr/local/arm/3.3.2/bin/arm-linux-ld: error: lib/lib.o uses hardware fp, whereas vivi-elf uses software fp成功: failed to merge target specific data of file lib/lib.o/usr/local/arm/3.3.2/bin/arm-linux-ld: error: drivers/serial/serial.o uses hardware fp, whereas vivi-elf uses software fp成功: failed to merge target specif

  • 100個最佳linux站點,請參考!(轉(zhuǎn)貼)

    有技術(shù)愛好者所關(guān)心的信息。而且在當(dāng)今充盈著"鏈接到----網(wǎng)站"的情況下,該站點還做了其他此類網(wǎng)站沒有時間去真正做的事————自己親自動手寫稿件。 (5) wide open news 網(wǎng)址:http://www.wideopen.com 評介:該站點的新聞區(qū)經(jīng)常包含一些相當(dāng)有意義的專題特寫和文章,而且一般都由專業(yè)記者撰寫。wide open news站點每周都會發(fā)布一些原創(chuàng)作品,而且通常稿件質(zhì)量都很高。喜歡瀏覽行業(yè)新聞的不妨去感受一番。 (四)通用硬件 (1) linux hardware 網(wǎng)址: http://www.linuxhardware.net/ 評介:linux hardware站點中包括一個內(nèi)容非常廣泛的linux系統(tǒng)中所有的硬件信息數(shù)據(jù)庫。用戶既可以瀏覽這些數(shù)據(jù)庫資料,也可以使用該站點的搜索引擎來快速查找所需要的硬件資料。同樣,該站點也允許搜索usenet 組。其中l(wèi)inux friendly hardware vendor 列表也是另一個特點所在。 (2) linux hardware database 網(wǎng)址:http://lhd.datapower.com 評

  • 編譯VIVI的時候出了點問題,請教一下,多謝

    deo/video.o \ lib/priv_data/priv_data.o \ net/net.o \ \ -o vivi-elf -l/usr/local/arm/3.3.2/lib/gcc-lib/arm-linux/3.3.2 -lgcc -lcgnu ld version 2.14.90 20030820/usr/local/arm/3.3.2/bin/arm-linux-ld: error: lib/lib.o uses hardware fp, whereas vivi-elf uses software fp成功: failed to merge target specific data of file lib/lib.o/usr/local/arm/3.3.2/bin/arm-linux-ld: error: drivers/serial/serial.o uses hardware fp, whereas vivi-elf uses software fp成功: failed to merge target specif

  • 諧波計算程序請教

    pectrum, x(n). */__no_init int x_n_re[n];/* * tmp_32 * * a union that allows accessing the individual 16-bit * words of a 32-bit double word as well as the entire * double word. this union is used by the multiplication * macros that make use of the hardware multiplier and * convert the multiplication result to q8.7 notation. */__no_init union{ long tmp_32; struct { int lsw; // least significant 16-bit word int msw; // most significant 16-bit word } tmp_16;};/* * hardware multiplier macros *

  • 不是我程序問題就是2200的BUG。希望是我程序問題!不然我跳樓了

    2200系列的uart bug一般是在判斷前先將寄存器內(nèi)容讀至一暫存變量較好.下面是與uart相關(guān)的bug介紹,:uart.1 coinciding vpb read and hardware register update.introduction: reading the contents of the iir,lsr and msr registers will clear certain bits in the register.1. reading the iir should clear the thre status if thre is the highest priority pending interrupt(only affects uart1).2. reading lsr should clear the oe/pe/fe/bi bits (affects both uart0 and uart1).3. reading msr should clear the delta dcd/trailing edge ri/delta dsr/delta cts bits (only

hardware替代型號

HANNING HANMI HANA HAIER1232S HA9P5127-5Z HA7-5221/883 HA741 HA7210 HA51339SP-3 HA51339SP

HARRIS HARTING HAT1025R HAT1026R HAT1043M HAT1048R HAT1054R HAT1069C HAT1072H HAT1089C

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H5TQ2G83DFR-PBC HM6264ALP-10 HAT2165H-EL HT7536-1 HEF4094BP HRU0302ATRF HT48R06A-1 HYB18L256160BF-7.5 HSMP-4810-TR1G HCPL-3120-500E

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