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Description: 本系统以直流电流源为核心，AT89S52单片机为主控制器，通过键盘来设置直流电源的输出电流，设置步进等级可达1mA，并可由数码管显示实际输出电流值和电流设定值。本系统由单片机程控输出数字信号，经过D/A转换器（AD7543）输出模拟量，再经过运算放大器隔离放大，控制输出功率管的基极，随着功率管基极电压的变化而输出不同的电流。单片机系统还兼顾对恒流源进行实时监控，输出电流经过电流/电压转变后，通过A/D转换芯片，实时把模拟量转化为数据量，再经单片机分析处理， 通过数据形式的反馈环节，使电流更加稳定，这样构成稳定的压控电流源。实际测试结果表明，本系统输出电流稳定，不随负载和环境温度变化，并具有很高的精度，输出电流误差范围±5mA，输出电流可在20mA~2000mA范围内任意设定，因而可实际应用于需要高稳定度小功率恒流源的领域。-the system to DC current source to the core, MCU AT89S52 main controller, through the keyboard to set up DC power supply output current, set up to 1mA Stepping grades, digital control can be shown by the actual output current value and current setting. The system consists of programmable microcontroller digital signal output, after the D / A converters (AD7543) analog output. After Operational Amplifiers isolation, amplification and control of the output power base. With the power of the base voltage changes in the output current. SCM system also takes on the constant current source for real-time monitoring, after current output current / voltage changes, the A / D converter chip, real-time conversion from analog to the volume of data and then analyzed by the MCU, through data link in the
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Size: 197253 |
Author: DAI |
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Description: 基于AT89S52的简易逻辑分析仪！IDE:VB6.0
通过单片机与电脑的串口链接将数据发送至电脑，由电脑分析逻辑波形！可保存波形数据，以备下此分析使用。-Simple logic analyzer! IDE : VB6.0 through SCM and computer serial data link will be sent to a computer by computer analysis logic waveform! Kept waveform data for use under this analysis.
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Size: 668765 |
Author: zzwgdut |
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Description: 单片机与LCD电路的链接程序可实现多功能-SCM and LCD circuit link procedures can be multifunctional.
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Size: 29218 |
Author: andy |
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Description: PC机与单片机之间进行通讯连接的C51代码和PC机的VC++代码-PC and SCM communications link between the C51 code and PC VC code
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Size: 10841 |
Author: dffdfe |
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Description: 本系统以直流电流源为核心，AT89S52单片机为主控制器，通过键盘来设置直流电源的输出电流，设置步进等级可达1mA，并可由数码管显示实际输出电流值和电流设定值。本系统由单片机程控输出数字信号，经过D/A转换器（AD7543）输出模拟量，再经过运算放大器隔离放大，控制输出功率管的基极，随着功率管基极电压的变化而输出不同的电流。单片机系统还兼顾对恒流源进行实时监控，输出电流经过电流/电压转变后，通过A/D转换芯片，实时把模拟量转化为数据量，再经单片机分析处理， 通过数据形式的反馈环节，使电流更加稳定，这样构成稳定的压控电流源。实际测试结果表明，本系统输出电流稳定，不随负载和环境温度变化，并具有很高的精度，输出电流误差范围±5mA，输出电流可在20mA~2000mA范围内任意设定，因而可实际应用于需要高稳定度小功率恒流源的领域。-the system to DC current source to the core, MCU AT89S52 main controller, through the keyboard to set up DC power supply output current, set up to 1mA Stepping grades, digital control can be shown by the actual output current value and current setting. The system consists of programmable microcontroller digital signal output, after the D/A converters (AD7543) analog output. After Operational Amplifiers isolation, amplification and control of the output power base. With the power of the base voltage changes in the output current. SCM system also takes on the constant current source for real-time monitoring, after current output current/voltage changes, the A/D converter chip, real-time conversion from analog to the volume of data and then analyzed by the MCU, through data link in the
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Size: 196608 |
Author: |
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Description: 基于AT89S52的简易逻辑分析仪！IDE:VB6.0
通过单片机与电脑的串口链接将数据发送至电脑，由电脑分析逻辑波形！可保存波形数据，以备下此分析使用。-Simple logic analyzer! IDE : VB6.0 through SCM and computer serial data link will be sent to a computer by computer analysis logic waveform! Kept waveform data for use under this analysis.
Platform: |
Size: 668672 |
Author: zzwgdut |
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Description: 单片机与LCD电路的链接程序可实现多功能-SCM and LCD circuit link procedures can be multifunctional.
Platform: |
Size: 28672 |
Author: andy |
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Description: PC机与单片机之间进行通讯连接的C51代码和PC机的VC++代码-PC and SCM communications link between the C51 code and PC VC code
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Size: 10240 |
Author: |
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Description: Rabbit4000单片机的网络编程，该程序可以实现了网络套接字的链接和网络端口的数据收发-Rabbit4000 SCM network programming, the program can realize the network link and network socket port data transceiver
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Size: 1024 |
Author: 邓从阳 |
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Description: Spatial Channel Model for system and link simulations.
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Size: 242688 |
Author: tsubasa |
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Description: 故障指示器；单相接地故障；电流互感器；全波整流有效值电路；单片机-Fault Indicator Single-phase Ground Fault Current Transformer RMS circuit full-wave rectifier SCM
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Size: 3072 |
Author: 王子 |
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Description: 生成维纳信道模型，维纳信道模型主要是用于系统级和链路级仿真，此实现方法是基于以前的暂时维纳方法以及SCM信道模型的。-Channel model is generated Wiener, Wiener channel model is mainly used for system-level and link level simulation, this implementation method is based on previous methods, and the temporary Wiener SCM channel model.
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Size: 672768 |
Author: hanyantao |
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Description: 随着电子技术和计算机技术的发展，微控制芯片功能越来越强大，而嵌入微控制芯片的设备和系统越来越多，从而使得这种技术越来越引人注目。ARM嵌入式处理器是一种高性能、低功耗的RISC芯片。
本文将给予ARM做出一个全面的概述。要了解ARM技术及ARM芯片，要从两方面下手：第一是ARM的指令寻址分析；第二是ARM的硬件组成及体系结构分析。
该课题就ARM的由来、发展、优势及ARM芯片的体系结构、指令系统、编程方法以及开发工具进行研究。ARM和单片机之间有很大的联系，这里可以运用学习80C51的方法去了解ARM，但是他们之间又有很多的不同之处，这个也是ARM存在的理由。此内容将在最后进行行探讨，找出ARM处理器与80C51芯片之间、ARM处理器各版本之间的联系与区别。以达到通过此次设计掌握开发基于ARM的应用系统的各方面的知识的目的。
-As electronic technology and computer technology, micro-controller chips more powerful, while the embedded micro-controller chip devices and systems more and more, making this technology more and more attention. ARM embedded processor is a high performance, low-power RISC chips.
This article will give a comprehensive overview of ARM made. To learn more about ARM technology and ARM chips to start with in two ways: first, the ARM instruction addressing analysis second ARM hardware analysis of the composition and architecture.
The subject on the ARM origin, development, advantages and ARM chip architecture, instruction set, programming methods and tools for research. ARM and SCM there is a great link, where the method can be used to study 80C51 to understand ARM, but between them there are a lot of differences, this is also the ARM raison d etre. This content will be OK in the final study to find between the ARM processor and the 80C51 chips, ARM processor, the link between the vario
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Size: 2154496 |
Author: 侯志宁 |
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Description: The channel modeling work package WP1 of IST-WINNER project provided a Matlab implementation of
the WINNER Phase II Model (referred as WIM this onward). The main purpose of the WIM channel
models is to generate a radio channel realisations for a link and system level simulations. The
implementation is based on the earlier implementations of WINNER II interim model [6], WINNER I
(interim) model [3], 3GPP/3GPP2 Spatial Channel Model (SCM) [4] and SCM(E) Extension models. For
details concerning the WIM model, please refer to [1]. This document describes the SW implementation
structure of WIM, its input/output interface and its functionality. Channel model scenarios and parameters
are modified to correspond to IMT.EVAL [7] channel model.
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Size: 334848 |
Author: Nohjeehwan |
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Description: AD574A的资料，接口，与单片机的链接，很好用-AD574A data, interfaces, and SCM link, very good use
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Size: 214016 |
Author: 刘月 |
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Description: 3GPP中通用的信道模型，链路模型，天线模型及链路损耗的计算都有，可用来计算信噪比-3GPP in a common channel models, link model, antenna model and link-loss calculation of both can be used to calculate signal to noise ratio
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Size: 223232 |
Author: wqq |
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Description: 此USB数据采集系统分三部分，下位机采用EZUSB单片机，C语言编程，USB接口部分的动态链接库采用C语言编程，上位机显示部分采用LABVIEW编程，是一个完整的系统源码。-This USB data acquisition system in three parts, the lower computer use EZUSB SCM, C language programming, USB interface, part of the dynamic link library using C language programming, the PC shows some use of LABVIEW programming, is a complete system source code.
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Size: 580608 |
Author: 方周 |
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Description: STM8单片机的相关开发软件及编译器，包括ST Toolset，COSMIC，IAR，ST-LINK，STX-LINK，和单片机相关网站-STM8 microcontroller development software and compiler, including the ST Toolset,COSMIC, IAR, ST-LINK, STX-LINK, and SCM-related website
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Size: 2106368 |
Author: 芳 |
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Description: STC89C58单片机串口调试程序，利用串口RS232通过与上位机的链接，再用串口调试助手调试串口通信。-STC89C58 SCM serial debugger, use with the host computer via RS232 serial link, and then debug serial communication serial debugging assistant.
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Size: 13312 |
Author: 黄进 |
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Description: nodemcu用于集成了ESP8266的单片机链接YEELINK库(Nodemcu is used to integrate the ESP8266 SCM link YEELINK Library)
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Size: 3469312 |
Author: 幽冥澜
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