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MIXED-Signal

  • 多路温度采集及监控系统的设计

    介绍一种基于单片机的多路温度采集及监控系统,能够测量6路温度信号,具有计算机联网功能,各测量点可以单独监控和设置,可根据用户的需求自动控制。测量温度范围为-10 ℃~200 ℃,控制方式采用模拟量调压模式。该系统具有控制精度高、冲击小等特点。 Abstract:  A temperature collecting and surveillance-controlling system based on sing-chip microcomputer is introduced. It can measure 6 channel signal of the temperature,and it has a function of network connection.The temperature measure points can be monitored and located, it can be controlled automatic according to user’s demand.The temperature range is -10℃ to 200℃.The model of control is adjustable voltage with simulation. It features high precision and little impact.

    标签: 多路 温度采集 监控系统

    上传时间: 2013-10-23

    上传用户:bjgaofei

  • 基于ADuC841的膜片钳放大器系统设计

    为降低成本和解决现有膜片钳放大器系统中PC机的干扰问题,研究了一种基于单片机的膜片钳放大器小系统。该系统采用ADI公司生产的ADuC841作为控制核心,并且配置相应的液晶显示模块LCM3202401。模拟电路部分采用高输入阻抗的AD8627实现微电流信号的采集,并由后级电路进行信号的放大和电阻电容的补偿。它具有硬件电路简单、体积小、使用方便的特点。既可以单独作为小系统实现采集和显示,也可以通过红外方式和PC机进行通讯,在PC机上进行信号的处理。 Abstract:  In order to reduce cost and resolve the interferential problem with PC in existing patch clamp amplifiers, a small patch clamp amplifier system design based on microcontroller is studied. It adopts a new high performance microconverter ADuC841 by the ADI as the control core in the system, configuring a liquid crystal module LCM3202401. In the analog circuit, AD8627 with high input impedance is used to detect the low current,signal magnification, as well as resistance and capacitance compensation are accomplished by subsequent circuits. It has the advantage of simple hardware circuit design, small volume and convenient operation. It can either be used as an independent system to measure and show signal detected or transmit to PC by infrared ray.

    标签: ADuC 841 膜片钳 放大器

    上传时间: 2013-11-06

    上传用户:yy_cn

  • SAM8系列S3C825A型单片机软件设计

    以S3C825A为例介绍三星公司SAM8系列单片机的内部结构及其软件开发环境,详细描述采用混合编程法来对SAM8系列单片机进行软件设计的一般方法,最后给出用混合编程法对S3C825A进行软件设计的具体应用实例。 Abstract:  With S3C825A,this paper firstly introduces the SAM8 series single-chip microcontrollers and their software development environment, then introduces mixed programming technology for SAM8 series single-chip microcontrollers. In the end, the application program is also given.

    标签: S3C825A SAM8 单片机 软件设计

    上传时间: 2013-12-09

    上传用户:ZZJ886

  • SPCE061A单片机简介

    随着单片机功能集成化的发展,其应用领域也逐渐地由传统的控制,扩展为控制处理、数据处理以及数字信号处理(DSP,Digital Signal Processing)等领域。凌阳的16位单片机就是为适应这种发展而设计的。它的CPU内核采用凌阳最新推出的µ’nSP™(Microcontroller and Signal Processor)16位微处理器芯片(以下简称µ’nSP™)。围绕µ’nSP™所形成的16位µ’nSP™系列单片机(以下简称µ’nSP™家族)采用的是模块式集成结构,它以µ’nSP™内核为中心集成不同规模的ROM、RAM和功能丰富的各种外设接口部件。

    标签: SPCE 061A 061 单片机

    上传时间: 2013-11-07

    上传用户:wpwpwlxwlx

  • dsPIC30F产品手册

    dsPIC30F产品手册 High Performance Digital Signal Controllers This section of the manual contains the following topics:1.1 Introduction 1.2 Manual Objective 1.3 Device Structure1.4 Development Support  1.5 Style and Symbol Conventions 1.6 Related Documents 1.7 Revision History

    标签: dsPIC 30F 30 产品手册

    上传时间: 2013-12-26

    上传用户:xzt

  • CAT28LV64-64Kb CMOS并行EEPROM数据手

    The CAT28LV64 is a low voltage, low power, CMOS Parallel EEPROM organized as 8K x 8−bits. It requires a simple interface for in−system programming. On−chip address and data latches, self−timed write cycle with auto−clear and VCC power up/down write protection eliminate additional timing and protection hardware. DATA Polling and Toggle status bit signal the start and end of the self−timed write cycle. Additionally, the CAT28LV64 features hardware and software write protection.

    标签: EEPROM 64 CMOS CAT

    上传时间: 2013-11-16

    上传用户:浩子GG

  • DTMF Decoding with a PIC16xxx

    This application note describes how to decode standard DTMF tones using the minimum number of external discrete components and a PIC. The two examples use a PIC which has an 8 bit timer and either a comparator or an ADC, although it can be modified for use on a PIC which has only digital I/O. The Appendices have example code for the 16C662 (with comparator) and 16F877 (using the ADC). As the majority of the Digital Signal Processing is done in software, little is required in the way of external signal conditioning. Software techniques are used to model the individual elements of a DTMF Decoder IC.

    标签: Decoding DTMF with PIC

    上传时间: 2013-11-21

    上传用户:zhaoke2005

  • PCA82C250 PCA82C251 CAN Transc

    The PCA82C250 and PCA82C251 are advanced transceiver products for use in automotive and general industrialapplications with transfer rates up to 1 Mbit/s. They support the differential bus signal representation beingdescribed in the international standard for in-vehicle CAN high-speed applications (ISO 11898). Controller AreaNetwork (CAN) is a serial bus protocol being primarily intended for transmission of control related data between anumber of bus nodes.

    标签: PCA 82C Transc 82

    上传时间: 2013-11-24

    上传用户:Alick

  • Clocking Options for Stellaris

    The main oscillator allows either a crystal or single-ended input clock signal. Cost-sensitiveapplications typically use an external crystal with the on-chip oscillator circuit since it is the mostcost-effective solution. It is also possible to use the internal oscillator to clock the device after theboot process has completed.

    标签: Stellaris Clocking Options for

    上传时间: 2013-10-14

    上传用户:pol123

  • Using the P82B96 for bus inter

    The P82B96 offers many different ways in which it can be used as abus interface. In its simplest application it can be used as aninterface between bus systems operating from different supplyvoltages. Opto isolation between two bus systems is possible, andalso the availability of the Tx and Rx signals permits interfacing ofthe P82B96 with other bus systems which separate the forwardoutput path, from the backward input signal path.

    标签: P82B96 Using inter the

    上传时间: 2013-10-11

    上传用户:洛木卓