虫虫首页| 资源下载| 资源专辑| 精品软件
登录| 注册

How-To

  • 如何选择补偿的硅压力传感器

    Abstract: This reference design provides design ideas for a cost-effective, low-power liquid-level measurement dataacquisition system (DAS) using a compensated silicon pressure sensor and a high-precision delta-sigma ADC. Thisdocument discusses how to select the compensated silicon pressure sensor, suggest system algorithms, and providenoise analyses. It also describes calibration ideas to improve system performance while also reducing complexity andcost.

    标签: 如何选择 补偿 硅压力传感器

    上传时间: 2013-10-08

    上传用户:sjy1991

  • 三菱FX系列PLC与计算机无协议通讯

    本文主要通过介绍PLC通讯的意义和三菱FX系列PLC的四种通讯方式,并重点介绍FX系列PLC与计算机无协议通讯,主要从无协议通讯的硬件、配线、数据寄存器设置、PLC与计算机无协议通讯的指令用法、PLC程序编写和计算机VB程序的编写来说明无协议通讯的过程和一般方法。 My dissertation introduces the significance of PLC communications and the four means of communication of Mitsubishi FX’s PLC, And highlights the no protocol communications of FX series PLC and computer, no protocol communications hardware, wiring, Register data set, and the usage of command about no protocol communications, How to write PLC program and computer VB program to illustrate the process of no protocol communications and general method.

    标签: PLC 三菱FX系列 计算机 协议

    上传时间: 2014-11-29

    上传用户:Jerry_Chow

  • CodeWarrior开发套件简明指南

    The CodeWarrior Development Suite provides access and technical support to amultitude of CodeWarrior products. In this quick start guide, Section 1 explains howto register your CodeWarrior Development Suite. Section 2 explains how to activateand install one of your products. Section 3 describes what you are entitled to withthe purchase of your CodeWarrior Development Suite, and Section 4 discusses theavailable purchase options. Section 5 describes the benefits of maintaining a currenttechnical support contract, and Section 6 tells you how to access support.

    标签: CodeWarrior 开发套件

    上传时间: 2014-03-02

    上传用户:784533221

  • MAXQ1050评估套件和面向MAXQ30入门的CrossStudio编译

    Abstract: This application note describes how to create, build, and debug applications targeted for the MAXQ1050 RISC

    标签: MAXQ CrossStudio 1050 30

    上传时间: 2014-08-11

    上传用户:qwerasdf

  • XAPP1023-测试Virtex-4 TEMAC系统的性能

    This application note provides step-by-step instructions on how to recreate a Tri-Mode Ethernet(TEMAC) performance testing system using the ML405 board and MontaVista Linux 4.0. Thisapplication note shows how to set up a simple EDK Base System Builder system on the ML405Evaluation Platform and run performance tests. The network architecture for the test isdescribed. A system is built and downloaded into the FPGA. A MontaVista Linux kernel isconfigured, built, and downloaded into the ML405 Evaluation Platform. The instructions forobtaining and setting up the software used to perform the measurements, netperf, are given.

    标签: Virtex TEMAC XAPP 1023

    上传时间: 2013-11-11

    上传用户:saharawalker

  • 飞思卡尔S12处理器培训讲义

    飞思卡尔S12处理器培训讲义   In this LAB, we will: Get familiar with CodeWarrior 4.7 IDE; How to work with project wizard; Light the LEDs

    标签: S12 飞思卡尔 处理器 培训讲义

    上传时间: 2013-11-13

    上传用户:LIKE

  • 错误观念妨碍电量计在无线手机中的应用

    Abstract: Most hand-held products lack accurate battery-charge monitors ("fuel gauges") because of the misconception that an accurate fuel gauge is difficult to achieve. This article debunks the myths and discusses how to accurately monitor charge at all temperatures, charge and discharge rates, and aging conditions. 无线通信和数据在新一代手机和PDA中的融合为再一次的生产力飞跃创造了条件。。随之而来的将是经济的增长和全新的工作方式,在便携式计算机领域,PC笔记本曾经扮演了类似的开拓者角角。

    标签: 错误 电量计 无线 手机

    上传时间: 2013-10-17

    上传用户:erkuizhang

  • 差分電路中單端及混合模式S-參數的使用

    Single-Ended and Differential S-Parameters Differential circuits have been important incommunication systems for many years. In the past,differential communication circuits operated at lowfrequencies, where they could be designed andanalyzed using lumped-element models andtechniques. With the frequency of operationincreasing beyond 1GHz, and above 1Gbps fordigital communications, this lumped-elementapproach is no longer valid, because the physicalsize of the circuit approaches the size of awavelength.Distributed models and analysis techniques are nowused instead of lumped-element techniques.Scattering parameters, or S-parameters, have beendeveloped for this purpose [1]. These S-parametersare defined for single-ended networks. S-parameterscan be used to describe differential networks, but astrict definition was not developed until Bockelmanand others addressed this issue [2]. Bockelman’swork also included a study on how to adapt single-ended S-parameters for use with differential circuits[2]. This adaptation, called “mixed-mode S-parameters,” addresses differential and common-mode operation, as well as the conversion betweenthe two modes of operation.This application note will explain the use of single-ended and mixed-mode S-parameters, and the basicconcepts of microwave measurement calibration.

    标签: 差分電路 單端 模式

    上传时间: 2014-03-25

    上传用户:yyyyyyyyyy

  • 错误观念妨碍电量计在无线手机中的应用

    Abstract: Most hand-held products lack accurate battery-charge monitors ("fuel gauges") because of the misconception that an accurate fuel gauge is difficult to achieve. This article debunks the myths and discusses how to accurately monitor charge at all temperatures, charge and discharge rates, and aging conditions.

    标签: 错误 电量计 无线 手机

    上传时间: 2014-03-18

    上传用户:wenwiang

  • 基于(英蓓特)STM32V100的串口程序

    This example provides a description of how  to use the USART with hardware flowcontrol and communicate with the Hyperterminal.First, the USART2 sends the TxBuffer to the hyperterminal and still waiting fora string from the hyperterminal that you must enter which must end by '\r'character (keypad ENTER button). Each byte received is retransmitted to theHyperterminal. The string that you have entered is stored in the RxBuffer array. The receivebuffer have a RxBufferSize bytes as maximum. The USART2 is configured as follow:    - BaudRate = 115200 baud      - Word Length = 8 Bits    - One Stop Bit    - No parity    - Hardware flow control enabled (RTS and CTS signals)    - Receive and transmit enabled    - USART Clock disabled    - USART CPOL: Clock is active low    - USART CPHA: Data is captured on the second edge     - USART LastBit: The clock pulse of the last data bit is not output to                      the SCLK pin

    标签: V100 STM 100 32V

    上传时间: 2013-10-31

    上传用户:yy_cn