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on-Board

  • Using the 87LPC76X microcontro

    I2C interface, is a very powerful tool for system designers. Theintegrated protocols allow systems to be completely software defined.Software development time of different products can be reduced byassembling a library of reusable software modules. In addition, themultimaster capability allows rapid testing and alignment ofend-products via external connections to an assembly-line computer.The mask programmable 87LPC76X and its EPROM version, the87LPC76X, can operate as a master or a slave device on the I2Csmall area network. In addition to the efficient interface to thededicated function ICs in the I2C family, the on-Board interfacefacilities I/O and RAM expansion, access to EEPROM andprocessor-to-processor communications.

    標簽: microcontro Using 76X LPC

    上傳時間: 2013-12-30

    上傳用戶:Artemis

  • 87C576微控制器的在線編程

    The 87C576 includes two separate methods of programming theEPROM array, the traditional modified Quick-Pulse method, and anew on-Board Programming technique (OBP).Quick Pulse programming is a method using a number of devicepins in parallel (see Figure 1) and is the traditional way in which87C51 family members have been programmed. The Quick-Pulsemethod supports the following programming functions:– program USER EPROM– verify USER EPROM– program KEY EPROM– program security bits– verify security bits– read signature bytesThe Quick-Pulse method is quite easily suited to standardprogramming equipment as evidenced by the numerous vendors of87C51 compatible programmers on the market today. Onedisadvantage is that this method is not well suited to programming inthe embedded application because of the large number of signallines that must be isolated from the application. In addition, parallelsignals from a programmer would need to be cabled to theapplication’s circuit board, or the application circuit board wouldneed to have logic built-in to perform the programming functions.These requirements have generally made in-circuit programmingusing the modified Quick Pulse method impractical in almost all87C51 family applications.

    標簽: 87C576 微控制器 編程

    上傳時間: 2013-10-21

    上傳用戶:xiaozhiqban

  • 基于DSP的車載雷達測速系統設計

    針對運行中火車測速運用多普勒效應采用DSP 設計雷達測速系統并闡述了其基本設計思想與工作原理給出系統硬件軟件設計結構和原理圖改善了原有光電測速精度提高了系統工作穩定性和可靠性經實驗證明DSP 采集板工作穩定測速效果好關鍵詞DSP; 雷達測速; 多普勒效應 On Board DSP-Based Radar Speed Measurement System TANG Wei, SUN Zhi-fang, CHEN Quan (Dept.of computer Science,Yangtze University,Jingzhou 434023,China)Abstract: This paper presents a DSP-based train speed measurement by using Doppler radar. The structure of the system is introduced.The hardware and software are also discussed.Key words: DSP; rader speed measurement; doppler principle

    標簽: DSP 車載 系統設計 雷達測速

    上傳時間: 2013-10-27

    上傳用戶:003030

  • XAPP098 - Spartan FPGA低成本、高效率串行配置

    This application note shows how to achieve low-cost, efficient serial configuration for Spartan FPGA designs. The approachrecommended here takes advantage of unused resources in a design, thereby reducing the cost, part count, memory size,and board space associated with the serial configuration circuitry. As a result, neither processor nor PROM needs to be fullydedicated to performing Spartan configuration.In particular, information is provided on how the idle processing time of an on-Board controller can be used to loadconfiguration data from an off-board source. As a result, it is possible to upgrade a Spartan design in the field by sending thebitstream over a network.

    標簽: Spartan XAPP FPGA 098

    上傳時間: 2014-08-16

    上傳用戶:adada

  • 71M6541演示板用戶手冊

    The Maxim Integrated 71M6541-DB REV 3.0 Demo Board is a demonstration board for evaluating the 71M6541 device for single-phase electronic energy metering applications in conjunction with the Remote Sensor Inter-face. It incorporates a 71M6541 integrated circuit, a 71M6601 Remote Interface IC, peripheral circuitry such as a serial EEPROM, emulator port, and on-Board power supply. A serial to USB converter allows communication to a PC through a USB port. The Demo Board allows the evaluation of the 71M6541 energy meter chip for measurement accuracy and overall system use.

    標簽: 71M6541 演示板 用戶手冊

    上傳時間: 2013-11-06

    上傳用戶:雨出驚人love

  • XAPP098 - Spartan FPGA低成本、高效率串行配置

    This application note shows how to achieve low-cost, efficient serial configuration for Spartan FPGA designs. The approachrecommended here takes advantage of unused resources in a design, thereby reducing the cost, part count, memory size,and board space associated with the serial configuration circuitry. As a result, neither processor nor PROM needs to be fullydedicated to performing Spartan configuration.In particular, information is provided on how the idle processing time of an on-Board controller can be used to loadconfiguration data from an off-board source. As a result, it is possible to upgrade a Spartan design in the field by sending thebitstream over a network.

    標簽: Spartan XAPP FPGA 098

    上傳時間: 2013-11-01

    上傳用戶:wojiaohs

  • XAPP904 - CoolRunner-II特性LCD模塊接口

      There are many manufacturers of dot matrix LCD modules. However, most of these displaysare similar. They all have on-Board controllers and drivers capable of displaying alpha numericsand a wide variety of other symbols (including Japanese "Katakana" characters). The internaloperation of LCD controller devices is determined by signals sent from a central processing unit(in this case, a CoolRunner-II CPLD).

    標簽: CoolRunner-II XAPP 904 LCD

    上傳時間: 2013-12-17

    上傳用戶:haiya2000

  • Cypress Semiconductor makes a variety of PLL-based clock generators. This application note provides

    Cypress Semiconductor makes a variety of PLL-based clock generators. This application note provides a set of recommendations to optimize usage of Cypress clock devices in a system. The application note begins with recommended termination techniques for clock generators. Subsequently, power supply filtering and bypassing is discussed. Finally, the application note provides some recommendations on board layout.

    標簽: Semiconductor application generators PLL-based

    上傳時間: 2013-12-20

    上傳用戶:水中浮云

  • 用AVR單片機設計的MP3播放器 功能: MP3 Player IDE ATA interface FAT 32 with long file name support USB

    用AVR單片機設計的MP3播放器 功能: MP3 Player IDE ATA interface FAT 32 with long file name support USB interface On board power supply (input from 7v to 20v DC) Bootloader firmware upgradeable via USB port Infrared bi-directional interface Remote Control Back light graphic LCD worked with only 2x AA batteries In sleep mode sink less than 1uA (2.5mA in active mode) 5 buttons for easy navigation Long range (more than 20 feets)

    標簽: MP3 interface support Player

    上傳時間: 2016-07-02

    上傳用戶:fandeshun

  • 是英文 “ Surface mount technology ”的縮寫。即表面安裝技術

    是英文 “ Surface mount technology ”的縮寫。即表面安裝技術,這是一種較傳統的安裝方式。其優點是可靠性高,缺點是體積大,成本高,限制 LCM 的小型化。 是英文 “ Chip On Board ”的縮寫。即芯片被邦定(Bonding)在PCB上,由于IC制造商在LCD控制及相關芯片的生產上正在減小QFP( SMT 的一種)封裝的產量,因此,在今后的產品中傳統的 SMT 方式將被逐步取代。

    標簽: technology Surface mount 英文

    上傳時間: 2016-10-08

    上傳用戶:nairui21

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