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Description: 电子时钟功能与使用
该电子钟由于使用12MHZ晶振，故而能获得较高精度的时间。它能同时显小时，分钟和秒。设有两个按键：A和B键。A键用于选择要校正的目标，是小时，分钟还是秒，按第一下时，选择秒，按第二下则选分钟，第三下则选小时，第四下则退出校时，第五下又选秒，如此循环，可选择校时或退出校时。B键每按一次，所选对象就会加1，比如，已选择分钟，那么每按一下此键，分钟数目就会加上1。
-Electronic clock function and the use of the bell as a result of the use of e-12MHZ crystal, they are able to obtain a higher accuracy of the time. At the same time it can significantly hours, minutes and seconds. There are two buttons: A and B keys. A key is used to select the goal of correction is hours, minutes or seconds, the next by the first, the choice of seconds, according to the election under the second minute, the third hour of the election, has withdrawn from school under the fourth, the fifth another election under the second, and so the cycle of school or may choose to withdraw from school. B button every time, the selected object will be plus 1, for example, have chosen to minutes, then each click on this button will add the number of 1 minute.
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Size: 57344 |
Author: yu |
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Description: This a program for automatic school bells using signals from LTP [printer port]. Advanced windows like graphics Multi exe program Hot keys file database electronic circuit for fire alarm using LDR A bell circuit Parallel port HOW TO GUIDE Keyboard HOTKEY program fire alarm details Electonic circuit control through parallel port [LTP]
- This is a program for automatic school bells using signals from LTP [printer port]. Advanced windows like graphics Multi exe program Hot keys file database electronic circuit for fire alarm using LDR A bell circuit Parallel port HOW TO GUIDE Keyboard HOTKEY program fire alarm details Electonic circuit control through parallel port [LTP]
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Size: 78848 |
Author: anatolia |
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Description: 串行通信接口标准经过使用和发展，目前已经有几种。但都是在RS-232标准的基础上
经过改进而形成的。所以，以RS-232C为主来讨论。RS-323C 标准是美国EIA(电子工业联合
会）与BELL等公司一起开发的1969 年公布的通信协议。它适合于数据传输速率在0～
20000b/s 范围内的通信。这个标准对串行通信接口的有关问题，如信号线功能、电器特性
都作了明确规定。由于通行设备厂商都生产与RS-232C制式兼容的通信设备，因此，它作为
一种标准，目前已在微机通信接口中广泛采用。
-Serial communication interface standard through the use and development, there are already several. But they are in the RS-232 standard based on the improved formed. Therefore, to RS-232C-based discussion. RS-323C standard is the U.S. EIA (Electronic Industries Alliance) and BELL companies announced in 1969 with the development of communication protocols. It is suitable for data transmission rates in the 0 ~ 20000b/s within the scope of communication. The standard serial communications interface issues, such as the signal line feature, the electrical properties have been clearly defined. As the access equipment vendors are manufacturing and RS-232C standard compatible communications equipment, so it as a standard, currently in widespread use in computer communication interface.
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Size: 907264 |
Author: wang |
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Description: 这是我准备电子设计大赛时，用VHDL写的一个自动打铃系统，很好的学习资料。-This is when I am going to Electronic Design Contest, use VHDL to write an automatic bell playing system, a very good learning materials.
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Size: 3398656 |
Author: shuwei |
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Description: 用c++制作的,有电子显频可显示的电子打铃系统-Produced by c++, there are significant frequency electronic display system, an electronic beat bell
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Size: 212992 |
Author: 刘德华 |
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Description: RS232串口技术文摘
串口硬件标准：串行通信接口标准经过使用和发展，目前已经有几种。但都是在RS-232标准的基础上经过改进而形成的。所以，以RS-232C为主来讨论。RS-323C 标准是美国EIA(电子工业联合会）与BELL等公司一起开发的1969 年公布的通信协议。它适合于数据传输速率在0～20000b/s 范围内的通信。这个标准对串行通信接口的有关问题，如信号线功能、电器特性都作了明确规定。由于通行设备厂商都生产与RS-232C制式兼容的通信设备，因此，它作为一种标准，目前已在微机通信接口中广泛采用。
串口通信软件：随着计算机应用领域的不断扩展，计算机之间的远程通信用得也越来越广泛，计算机间的远程通信所使用的通信软件，在市面上可以买到，但是通用的通信软件虽然能发送和接收文件，在许方情况下这些通信软件并不能满足实际工作的需要。本文就这一技术进行了探讨，介绍了有关的知识和技术，并由实例分步骤说明如何进行通信软件的开发。-RS232 serial port technology digest
Standard serial port hardware: serial communication interface standard through the use and development, there are already several. However, RS-232 standards are based on the improved formed. Therefore, in order to discuss the main RS-232C. RS-323C standard is the U.S. EIA (Electronic Industries Alliance) and BELL and other companies announced in 1969 with the development of communication protocols. It is suitable for data rates in the 0 ~ 20000b/s within the communication. The standard serial communication interface issues, such as the signal line functions, electrical characteristics have been defined. As the production and access equipment vendors are standard RS-232C compatible communications equipment, therefore as a standard, currently in extensive use of computer communications interface.
Software of Serial Communication: With the expanding field of computer applications, remote communication between the computer more and more widel
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Size: 907264 |
Author: 小小 |
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Description: C++程序设计陷阱。作者Stephen Dewhurst曾经是贝尔实验室中第一批C++使用者的一员，他具有将近20年的C++应用经验，曾经用C++解决了诸多领域中的问题，如编译器设计、证券安全交易、电子商务以及嵌入式通讯等领域。他还是《Programming in C++》的作者之一，是C/C++ User Journal杂志的编辑和C++ Report杂志的专栏作家。更为重要的是，他还是两个C++编译器的开发者。
书做到极至，可以令许多拥有它的人感到释怀，于是，我身边的同行朋友就把它当成一本指南，不是把玩，而是反复地阅读，仔细地回味- Avoiding common Problems in coding and design ， stephen c.dewhurst 。
The author Stephen Dewhurst was bell LABS in the first C++ a member of the user, he has nearly 20 years of c + + application experience, once in c + + to solve the problems in many fields, such as the compiler design, securities transactions, electronic commerce and the safety of embedded communication, etc. He still "Programming in C++", one of the authors of C/C + + User Journal magazine editors and C + + Report magazine columnist. Even more important, he is still two c + + compiler developers.
Book do extreme, can make many people who have this was let go, so, I nearby of the colleague friend put it as a guide, not play, but repeated to read carefully, to a...
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Size: 21272576 |
Author: ellin |
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Description: protues的仿真电子打铃器 AT89C51-protues simulation of electronic devices AT89C51 bell
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Size: 9216 |
Author: llc |
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Description: Teng! Teng! Sound school bell rang, students began to enter their respective kekelas, That story Bel School antiquity. Of course you still remember the school bell clang sound when you re still in Elementary school (SD), junior and high school students when the clock showed 7:00 pm. Over time the school bell and the advancement of technology is now beginning to more advanced. Starting with the changes using electronic devices that use a transistor to use Integrated Circuit (IC) to replace a school bell or old iron bell.-Teng! Teng! Teng! Sound school bell rang, students began to enter their respective kekelas, That story Bel School antiquity. Of course you still remember the school bell clang sound when you re still in Elementary school (SD), junior and high school students when the clock showed 7:00 pm. Over time the school bell and the advancement of technology is now beginning to more advanced. Starting with the changes using electronic devices that use a transistor to use Integrated Circuit (IC) to replace a school bell or old iron bell.
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Size: 663552 |
Author: nice |
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Description: 本书的大部分内容取材于作者一年前的书籍手稿（尚未出版） ，现整理汇编成为上
海贝尔网络应用事业部的一个规范化文件，同时作为培训教材。
本书的大部分内容取材于作者一年前的书籍手稿（尚未出版） ，现整理汇编成为上
海贝尔网络应用事业部的一个规范化文件，同时作为培训教材。
由于 C++/C 编程是众所周知的技术，没有秘密可言。编程的好经验应该大家共享，
我们自己也是这么学来的。作者愿意公开本书的电子文档-Most of the content of the book is drawn is to compile an inventory of a year ago, the manuscript for a book (not yet published), a standardized file for Shanghai Bell Network Applications Division, at the same time as training materials. Most of the content of the book is drawn is to compile an inventory of a year ago, the manuscript for a book (not yet published), a standardized file for Shanghai Bell Network Applications Division, at the same time as training materials. C++/C programming is well-known technology, there is no secret at all. Programming experience should share our own so to learn. The authors are willing to open book electronic document
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Size: 267264 |
Author: 光明星 |
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Description: 电子钟设计的原代码 你可以在keli51的界面上和protus连接 进行运行-Electronic the bell design the original code
and schmatic sheet
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Size: 52224 |
Author: 地瓜 |
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Description: 关于数码管动态显示显示 定时器的用法 电子钟的设计方法-Usage of electronic digital dynamic display shows the timer bell design method
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Size: 1024 |
Author: 金雪亮 |
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Description: 电子钟使用晶振计时，数码管显示，可选铃设置闹钟，按键调时-Electronic clock crystal oscillator timing, digital display, optional bell set alarm, key tune
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Size: 603136 |
Author: Young |
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Description: 串口传输，传输协议为RS232。RS-232C标准是美国EIA（电子工业联合会）与BELL等公司一起开发的1969年公布的通信协议。-Serial transmission, the transmission protocol for RS232. RS-232C standard communication protocol is developed with the EIA (Electronic Industries Association) BELL companies in the United States, published in 1969.
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Size: 3072 |
Author: 陈恺 |
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Description: 《单片机应用与项目实践》里面有电子抢答器、电子钟、自动打铃系统等的源代码以及PPT-" SCM application projects and practice" there are electronic Responder, digital clock, automatic bell system' s source code as well as PPT
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Size: 4241408 |
Author: fuguoqiang |
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Description: C++程序设计编程，贝尔实验室著，电子版PDF-C++ program design programming, with Bell Labs, the electronic version in PDF
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Size: 24520704 |
Author: 高天宇 |
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Description: 串行通信接口标准经过使用和发展，目前已经有几种。但都是在RS-232标准的基础上
经过改进而形成的。所以，以RS-232C为主来讨论。RS-323C 标准是美国EIA(电子工业联合
会）与BELL等公司一起开发的1969 年公布的通信协议。它适合于数据传输速率在0～
20000b/s 范围内的通信。这个标准对串行通信接口的有关问题，如信号线功能、电器特性
都作了明确规定。由于通行设备厂商都生产与RS-232C制式兼容的通信设备，因此，它作为
一种标准，目前已在微机通信接口中广泛采用。-Serial communication interface standards through the use and development, now has several. But they are in the RS-232 standard on the basis of improved formed. Therefore, in RS-232C-based discussion. RS-323C standard U.S. EIA (Electronic Industries Association) BELL companies announced in 1969 with the development of communication protocols. It is suitable for the communication data transfer rate in the 0 ~ 20000b/s range. The standard serial communication interface of the relevant issues, such as the signal line function, electrical characteristics have been clearly defined. Since access equipment manufacturers are producing compatible with standard RS-232C communications equipment, so it as a standard, has been widely used in computer communication interface.
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Size: 912384 |
Author: 冯海 |
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Description: 本书是由C语言的设计者Brian W. Kernighan 和 Dennis M. Ritchie 编写的一部介绍标准 C语言及其程序设计方法的权威性经典著作。全面、系统地讲述了C语言的各个特性及程序设
计的基本方法，包括基本概念、类型和表达式、控制流、函数与程序结构、指针与数组、结构、输入与输出、UNlX 系统接口、标准库等内容。书的讲述深入浅出，配合典型例证，通
俗易懂，实用性强，适合作为大专院校计算机专业或非计算机专业的 C 语言教材，也可以作为从事计算相关软硬件开发的技术人员的参考书。-Authorized translation from the English language edition entitled The C Programming Language, Second Edition, ISBN: 0-13-110362-8 by Brian W. Kernighan and Dennis M. Ritchie,
published hy Pearson Education, Inc, publishing as Prentice Hall PTR, Copyright © 1988, 1978 by
Bell T elephone Laboratories, Incorporated.
All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanic, including photocopying,recording,or by any information
storage retrieval system, without permisson of Pearson Education, Inc.
CHNESE SIMPLIFIED language edition published by China Machine Press.
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Size: 1690624 |
Author: 李治 |
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Description: 2012年江苏省蓝桥杯电子设计大赛单片机组题目：自动打铃器，具体功能忘记，可以在官网找题目或可以放在官方的开发板上尝试。-2012 Jiangsu Lanqiao Cup electronic design contest single-chip unit Title: automatic bell, the specific function of forget, you can find the title in the official website or can be on the official development board to try.
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Size: 47104 |
Author: 秦磊 |
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