自制51编程器 I have build my own programmer. This device can program the AT89C51 and works with it. So it can easily be adapted to programming other devices by itself. The Atmel Flash devices are ideal for developing, since they can be reprogrammed easy, often and fast. You need only 1 or 2 devices in low cost plastic case for developing. In contrast you need 10 or more high cost windowed devices if you must develop with EPROM devices (e.g. Phillips 87C751).
标签： programmer program device build
上传时间： 2015-05-11
上传用户：sdq_123
he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with only 2 discrete levels, for example 0V and 5V and a constant period. The current value of this signal at a certain poiTnt of time is proportional to its Duty Cycle. That s the High Time during one period divided by the period. It can also be calculated as the average value during a particular period. That means after low pass filtering, (e.g. RC circuit) the signal becomes analog, with an actual value controlled by the microcontroller. The PWM functionality enables the LPC932 to control for example the speed of DC motors or the brightness of electric lighting.
标签： signal Modulated analog create
上传时间： 2015-05-14
上传用户：CHINA526
关闭系统服务 @echo off @net share ipc$ /delete @net share admin$ /delete @net share c$ /delete @net share d$ /delete @net share e$ /delete @net share f$ /delete @net share g$ /delete pause
上传时间： 2014-01-08
上传用户：xg262122
参考了JAVA方面MIS系统开发的书籍做的一个 电力收费的系统,包里面是可以直接运行的JAR文件了...SRC是源文件可一些需要的包...数据库是用的MSQLserver2000,"java程序数据源.BAK"如果安装不到SQLserver就按照在SSQL2000里面的提示做,或者在G盘下安装(我原来的数据库是安装在G盘的)一个数据库,再在里面安装(恢复)这个备份
标签： MSQLserver JAVA 2000 java
上传时间： 2015-05-16
上传用户：zhouli
软件测试方便的入门书，比较全，我这里ebook有好多，编程设计的收集了好几个G
标签： 软件测试
上传时间： 2014-12-07
上传用户：561596
The Audio File Library provides a uniform programming interface to standard digital audio file formats. This library allows the processing of audio data to and from audio files of many common formats (currently AIFF, AIFF-C, WAVE, NeXT/Sun .snd/.au, IRCAM, AVR, Amiga IFF/8SVX, and NIST SPHERE). The library also supports compression (currently G.711 mu-law and A-law and IMA and MS ADPCM) as well as PCM formats of all flavors (signed and unsigned integer, single- and double-precision floating point).
标签： programming interface provides standard
上传时间： 2014-12-06
上传用户：a6697238
This comprehensive clear screen tutorial using Java native interface. Teaches you from A-Z how you go about clearing the windows dos console.
标签： comprehensive interface you tutorial
上传时间： 2015-05-28
上传用户：qlpqlq
Appliction => rs232测试 应用程式 Driver => usb to rs232 驱动程式(wdm ddk) DLL => 应用程式 Firmware => USBtoRS232 硬体韧体
标签： Appliction 232 gt Firmware
上传时间： 2015-06-03
上传用户：yimoney
做到在互连网的语音通信功能，使用g.729压缩，在 北京 -------- 重庆 间测试过，一端是长城宽带。一端是56k modem 拨号上网。语音比较清晰，但有一点停吨现象。
上传时间： 2013-12-26
上传用户：cursor
魔王语言解释 [问题描述] 有一个魔王总是使用自己的一种非常精练而又抽象的语言讲话，没有人能听得懂，但他的语言是可以逐步解释成人能听懂的语言，因为他的语言是由以下两种形式的规则由人的语言逐步抽象上去的： （1） α 转换为 β1β2…βm （2） （θδ1δ2…δn） 转换为 θδnθδn－1… θδ1θ 在这两种形式重，从左到右均表示解释。试写一个魔王语言的解释兄，把他的话解释成人能听得懂的话。 [基本要求] 用下述两条具体规则和上述规则形式（2）实现。设大写字母表示魔王语言的词汇；小写字母表示人的语言词汇；希腊字母表示可以用大写字母或小写字母代换的变量。魔王语言可含人的词汇。 （1）B 转换为 tAdA （2）A 转换为 sae [测试数据] B（exnxgz）B解释成tsaedsaeezegexenehetsaedsae 若将小写字母与汉字建立下表所示的对应关系，则魔王说的话是：“天上一只鹅地上一只鹅鹅追鹅赶鹅下鹅蛋鹅恨鹅天上一直鹅地上一只鹅”。 t d s a e z g x n h 天 地 上 一只 鹅 追 赶 下 蛋 恨
上传时间： 2014-12-21
上传用户：大三三
