用C51实现的拼音输入法,这是改写的网友 embuffalo、独步上载在www.21ic.com自由发布区的由张凯原作的51上的拼音输入法程序。 原作使用了一个二维数组用以查表,我认为这样比较的浪费空间,而且每个字表的索引地址要手工输入,效率不高。所以我用结构体将其改写了一下。就是大家现在看到的这个。 因为代码比较的大,共有6,000多汉字,这样就得要12,000 byte来存放GB内码,所以也是没办法的 :-( 编译结果约为3000h,因为大部分是索引表,代码优化几乎无效。 在Keil C里仿真芯片选用的是华邦的W77E58,它有32k ROM, 256B on-chip RAM, 1K on-chip SRAM (用DPTR1指针寻址,相当于有1K的片上xdata)。条件有限,没有上片试验,仿真而已。 打算将其移植到AVR上,但CodeAVRC与IAR EC++在结构体、指针的定义使用上似乎与C51不太一样,现在还未搞定。还希望在这方面有经验的网友能给予指导。
上传时间: 2014-01-26
上传用户:semi1981
A detailed explanation of C# 2.0 An introduction to Visual Studio 2005, a tool set for building Windows and web applications More than 200 questions and programming exercises to help you better judge your understanding of the material A greater emphasis on event handling Information on generics and generic collections
标签: introduction explanation detailed building
上传时间: 2013-12-14
上传用户:爱死爱死
This preface introduces the Advanced Microcontroller Bus Architecture (AMBA) specification. It contains the following sections: • About this document on page iv • Feedback on page vii.
标签: Microcontroller specification Architecture introduces
上传时间: 2016-06-29
上传用户:frank1234
Full compliance with the USB Specification v1.1 and USB CDC v1.1 Support the RS232 Serial interface Support automatic handshake mode Support Remote wake-up and power management 256 bytes buffer each for upstream and downstream data flow Support default ROM or external EEPROM for device configuration On chip USB transceiver On chip crystal oscillator running at 12M Hz Supports Windows 98/SE, ME, 2000, XP, Windows CE3.0, CE .NET, Linux, and Mac OS 28 Pins SOIC package 28
标签: Specification compliance 1.1 USB
上传时间: 2016-08-21
上传用户:dapangxie
This sample displays a basic integer calculator powered by the 8051 microcontroller. Although Keil C51 has a full floating point math library the evaluation version is restricted to 2k of object code, so we have constrained this sample to integer maths in order to fit within this limit. The program for this design was written in C using the Keil uVision 2 IDE for which Proteus VSM provides a Debug Monitor driver. Instructions for configuring Proteus to run in conjunction with the Keil environment can be found by editing the 8051 microcontroller on the schematic (point at it and press CTRL-E) and then clicking on the help button on the Edit Component dialogue form.
标签: microcontroller calculator Although displays
上传时间: 2014-12-01
上传用户:edisonfather
Given Perl s natural fit for web applications development, it s no surprise that Perl is also a natural choice for web services development. It s the most popular web programming language, with strong implementations of both SOAP and XML-RPC, the leading ways to distribute applications using web services. But books on web services focus on writing these applications in Java or Visual Basic, leaving Perl programmers with few resources to get them started. "Programming Web Services with Perl" changes that, bringing Perl users all the information they need to create web services using their favorite language.
标签: Perl applications development surprise
上传时间: 2014-11-21
上传用户:xiaoyunyun
In this article, I will explain how to create UDP packets and then send them to a remote server through the Internet using WinPCap for Windows. The code has been tested to work with Windows XP SP2 and Vista SP1 on Linksys routers, and on Toshiba modems connected directly to the Internet. Please note that the code here is very minimalistic, and can be greatly expanded depending on your needs. The reason I use WinPCap in this article is that it solves the issue of Winsock for Windows (XP SP2 and above) not allowing raw UDP packets to be sent (in Linux, you can just use regular sockets). With WinPcap, it is possible to specify your own source IP and source hardware addresses in packets.
标签: article explain packets create
上传时间: 2013-12-12
上传用户:x4587
Objectives The purpose of this notebook is to give you a brief introduction to the DiscreteWavelets Toolbox and show you how to use it to load images. Some basic image manipulation is illustrated as well. You will also learn how to use measures and tools such as cumulative energy, entropy, PSNR, and Huffman coding. Help on the DiscreteWavelets Toolbox Help for the toolbox is available by clicking on Help and then Product Help (or press F1) and then clicking on the DiscreteWavelets Toolbox. Several demos and examples are available as well by clicking on the Demos tab on the Help menu. Image Basics The DiscreteWavelets Toolbox comes with 18 grayscale images and 9 color images for you to use. There are three functions available to tell you more about these images. The first function is called |ImageList|. This function can tell you the names and sizes of the digital images in the Toolbox.
标签: introduction DiscreteWav Objectives notebook
上传时间: 2017-06-30
上传用户:康郎
The BTS5016SDA is a one channel high-side power switch in PG-TO252-5-11 package providing embedded protective functions. The power transistor is built by a N-channel vertical power MOSFET with charge pump. The design is based on Smart SIPMOS chip on chip technology. The BTS5016SDA has a current controlled input and offers a diagnostic feedback with load current sense and a defined fault signal in case of overload operation, overtemperature shutdown and/or short circuit shutdown.
上传时间: 2019-03-27
上传用户:guaixiaolong
Two important microwave remote sensors are the radar and the radiometer. There have been a number of books written on various aspects of radar, but there have been only a few written on microwave radiometers, especially on sub- jects of how to design and build radiometer systems. This book, which is the second edition of a book originally published in 1989, attempts to fill this void.
标签: Radiometer Microwave Systems
上传时间: 2020-05-23
上传用户:shancjb