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[文件格式] 51单片机外部中断仅检测上升沿的方法

STC15系列单片机的外部中断0(INT0)和外部中断1(INT1)的触发有两种方式,上升沿和下降沿均可触发方式和仅下降沿触发方式。在实际应用中,有时候需要上升沿触发。这时有两种方案可以解决。 1.将触发方式设置成仅下降沿触发。当外部电路产生一个上升沿时,通过硬件电路加一个三极管进行反向变成下降沿。 2.这种方法不需要改变硬件电路。将触发方式设置成上升沿和下降沿均可触发方式。外部中断产生一个上升沿时,进入中断服务函数,这时在中断服务函数里做进一步处理,检测当前INT0的电平状态。如果是高电平,则判断为上升沿。如果是低电平,则判断为是下降沿。
STC15 series microcontroller external interrupt 0 (INT0) and external interrupt 1 (INT1) trigger in two ways, the rising and falling sides can trigger mode and only the falling edge trigger mode. In practical applications, sometimes the rising edge is required to trigger. There are two possible solutions. 1. set the trigger mode to only the falling edge trigger. When an external circuit produces a rising edge, a transistor is added to the reverse direction by means of a hardware circuit. 2., this method does not need to change the hardware circuit. The trigger mode is set to the rising edge and the falling edge. When an external interrupt generates an ascending edge, it enters the interrupt service function, and then performs further processing in the interrupt service function to detect the level status of the current INT0. If it is high, it is judged to be the rising edge. If it is low, it is judged to be the falling edge. (2017-09-25, C51, 11KB, 下载9次)

http://www.pudn.com/Download/item/id/1506331997741616.html

[文件格式] tongxungongchenglunw

本专业培养能适应我国社会主义市场经济和信息科学技术及产业的发展要求,在德、智、体诸方面全面发展,具有良好的科学文化素质、工程实践能力、创新思【其实论文,没必要自己写,太烦了,还不如找这位抢手帮写 加上他吧!ΩΩ:一二零七三四零二三 保你能过关】维能力和创业能力,能在通信领域中从事研究、设计、制造、运营及在国民经济各部门和国防工业中从事开发、应用通信技术与设备的高级工程技术人才。
The professional training to meet the development requirements of China s socialist market economy and information science and technology and industry, and all-round development in moral, intellectual, physical aspects, scientific and cultural qualities with good engineering practice, innovation thinking [Actually papers, no need write your own, too tired, not as sought help to find the write with his right! ΩΩ: 120,734,023 guarantee you can pass] peacekeeping capacity and entrepreneurial ability, to engage in research, design, manufacture, operation and engaged in the development of the national economy and defense industry sectors in the communications field, the application communication advanced engineering and technical personnel and equipment technology. (2015-04-17, ASP, 75KB, 下载2次)

http://www.pudn.com/Download/item/id/1429250551273265.html

[文件格式] example4

题目:输入某年某月某日,判断这一天是这一年的第几天? 1.程序分析:以3月5日为例,应该先把前两个月的加起来,然后再加上5天即本年的第几天,特殊       情况,闰年且输入月份大于3时需考虑多加一天。
Title: enter a certain period of a day, judgment day is the first few days of the year? Program analysis: March 5, for example, before the first two months combined, then add five days on the first few days of this year' s special circumstances, a leap year and enter a month more than 3 needs Consider the extra day. (2013-01-16, Visual C++, 3KB, 下载2次)

http://www.pudn.com/Download/item/id/2119585.html

[文件格式] Rossby1

首先介绍差分格式,然后数值模拟非线性罗斯贝波扰动能量的演变,给出流场和扰动能量演变的示意图
Numerical method is to be used to investigate the evolutions of linear and nonliear Rossby wave of middle-high latitude in different seasons under the actual basic flow, we mainly discuss the evolutions of relative total energy and the structure of stream field for different initial field and basic flows (2012-04-17, PDF, 518KB, 下载5次)

http://www.pudn.com/Download/item/id/1833216.html

[文件格式] Discrete-Mathematics-report(1)

1. 从键盘输入两个命题变元P和Q的真值,求它们的合取、析取、条件和双条件的真值。(A) 2. 求任意一个命题公式的真值表(B),并根据真值表求主范式(C) 注意:题目类型分为A,B,C三类,其中A为基本题,完成A类题目可达到设计的基本要求,其他均为加分题,并按字母顺序分数增加越高。
Input two propositional variables P and Q is the true value from the keyboard, find their conjunctive, disjunctive, conditional, and biconditional true value. (A) Lord paradigm (C) (2) seek any propositional formula a truth table (B), and in accordance with the truth table Note: topic types are divided into three categories A, B, C, where A is the basic question, to complete the Class A subject to meet the design requirements, the other are the bonus, in alphabetical order the higher the score increases. (2012-03-12, C/C++, 750KB, 下载5次)

http://www.pudn.com/Download/item/id/1791448.html

[文件格式] ribenlazhutu

借助蜡烛图技术,我们既可以进行投机交易,也可以进行保值交易。蜡烛图技术既可以应用到期货市场,也可以应用到股票市场、期权市场,或者适用的其它任何领域。通过本书,您将发现蜡烛图技术为市场分析添上了新一个空间维度。
With the help of candlestick charting techniques, we can engage in speculative trading, can also be hedging transactions. Candle technology can be applied to the futures market, also can be applied to the stock market, futures market, or any other field of application. Through this book, you will find the candlestick charting techniques for market analysis and add a new one spatial dimension. (2012-02-10, Visual C++, 6175KB, 下载9次)

http://www.pudn.com/Download/item/id/1768471.html

[文件格式] zw_0911020104

在表格里提供了某快递公司联邦快递的资费标准和服务项范围。本题要求我们通过输入包裹的重量和邮寄地点,我们可以查出输出它的邮费,并且对不在服务范围内的邮件进行提示。其中不接收21KG以下和不在表格所在地的物品。 Fedex联邦快递价格 國家 / 地區 21-44KG 45-70KG 71-99KG 100-300KG 301KG以上 日本 Japan 44.6 38.2 35.3 33.7 29.5 马来西亚 Malaysia 37.4 31.2 27.9 26.3 24.8 菲律宾 Philippines 36.2 29.9 26.1 24.7 23.2 南韩 S. Korea 38.0 33.6 31.0 28.2 26.5 新加坡 Singapore 36.8 31.8 29.2 27.5 25.9 台湾 Taiwan 36.2 29.9 27.3 25.7 24.1 泰国 Thailand 35.0 32.4 29.8 28.2 26.5 西欧 Europe 71.3 64.4 61.2 58.4 54.9 美国       53.7 51.6 备注:本公司暂时只服务以上区域,目前不接收21KG以下的物品
A express company fedex s due standard and service item scope. Subject requires us through the input of the weight of the package and mailing site, we can find out the output of its postage, and is not in service to within the scope of the E-mail reminder. Among them not receiving 21 KG and not in the form of seat of items. (2011-12-10, matlab, 6KB, 下载3次)

http://www.pudn.com/Download/item/id/1726449.html

[文件格式] 2

概括了空间重力异常和布格重力异常的计算方法,计算了中安第斯山局部地区的空间重力异常、地形改 正和布格重力异常,发现了其在海拔较高地区多为负值。
Summarizes the gravity anomaly and Bouguer gravity anomaly is calculated, calculated in some areas of the Andes gravity anomaly, Bouguer gravity anomaly and topographic correction, found at higher elevations than in the negative. (2011-06-30, HTML, 162KB, 下载35次)

http://www.pudn.com/Download/item/id/1585207.html

[文件格式] 2

1) 实现对两个文件数据进行合并,生成新文件3.txt 2) 抽取出三科成绩中有补考的学生并保存在一个新文件4.txt 3) 对合并后的文件3.txt中的数据按总分降序排序(至少采用两种排序方法实现) 4) 输入一个学生姓名后,能查找到此学生的信息并输出结果(至少采用两种查找方法实现) 5) 要求使用结构体,链或数组等实现上述要求. 6) 采用多种方法且算法正确者,可适当加分.
1) The realization of the merger of the two files of data to generate a new file 3.txt 2) extracted from three subjects for students in make-up and save a new file 4.txt 3) of the merged file 3.txt in data in descending order by total score (at least in two sequencing methods to achieve) 4) Enter the name of a student, the student can find this information and the output (at least by two to find ways to achieve) 5) require the use of structure, chain or an array such as the above-mentioned requirements. 6), using a variety of methods and algorithms are correct, may be appropriate bonus. (2010-08-06, Visual C++, 2KB, 下载11次)

http://www.pudn.com/Download/item/id/1261556.html

[文件格式] 3

基于椭圆曲线离散对数问题的一次签名方案。出了一个基于椭圆曲线离散对数问题的可证安全性的一次签名方案,构造了一个椭圆曲线群上的单向 函数,给出了签名方案初始化的相关算法以及椭圆曲线群上的点加算法和倍点算法,设计了签名算法和验证算法,同时证明了签名方案的安全性.
Based on elliptic curve discrete logarithm problem in a signature scheme. Out of one based on elliptic curve discrete logarithm problem of provable security of a signature scheme, constructed on an elliptic curve group of one-way function, signature scheme is given the relevant initialization algorithm and a point on the elliptic curve group of plus fold-point algorithms and algorithms designed signature algorithm and validation algorithm, and proves the security of signature schemes. (2010-03-25, PDF, 181KB, 下载14次)

http://www.pudn.com/Download/item/id/1099068.html

[文件格式] avi

微软的音频/视频交错(AVI)文件格式是一种RIFF格式的文件规范与应用,捕捉,编辑使用和播放音频/视频序列。一般情况下,AVI文件包含了不同类型的数据多个流。大多数AVI序列将同时使用音频和视频流。一个简单的AVI序列变异使用视频数据,不需要音频流。专门阿维序列可能包括控制赛道作为额外的数据流或MIDI音轨。控制轨道可以控制,如一个MCI光碟机的外部设备。在MIDI轨道可以发挥的顺序的背景音乐。虽然专门序列需要专门的控制程序,利用它的全部功能,应用程序,可以阅读和发挥阿维序列仍然可以阅读和发挥在专门的AVI文件序列的优势。 (这些应用程序忽略了非专门文件阿维数据。)本章主要介绍AVI文件只包含音频和视频数据。 本章涵盖以下主题: • 一个AVI文件所需的块 • 一个AVI文件可选的数据块 • 制定程序写入AVI文件 有关RIFF格式文件的其他信息,请参阅Microsoft Windows多媒体程序员指南和Microsoft Windows多媒体程序员参考。 有关安装的压缩机及解压缩的其他信息,请参见第10章“视频压缩和解压驱动程序。”
The Microsoft Audio/Video Interleaved (AVI) file format is a RIFF file specification used with applications that capture, edit, and playback audio/video sequences. In general, AVI files contain multiple streams of different types of data. Most AVI sequences will use both audio and video streams. A simple variation for an AVI sequence uses video data and does not require an audio stream. Specialized AVI sequences might include a control track or MIDI track as an additional data stream. The control track could control external devices such as an MCI videodisc player. The MIDI track could play background music for the sequence. While a specialized sequence requires a specialized control program to take advantage of all its capabilities, applications that can read and play AVI sequences can still read and play an AVI sequence in a specialized file. (These applications ignore the non-AVI data in the specialized file.) This chapter primarily describes AVI files containing only audio and vide (2010-03-22, Visual C++, 12KB, 下载20次)

http://www.pudn.com/Download/item/id/1096035.html

[文件格式] jsj

计算机组成课程设计实验报告按照要求设计指令系统,该指令系统能够实现数据传送,进行加、减运算和无条件转移,具有累加器寻址、寄存器寻址、寄存器间接寻址、存储器直接寻址、立即数寻址等五种寻址方式。从而可以想到如下指令:
Computer curriculum design report in accordance with the requirements of the experimental design instruction, the instruction set to achieve data transmission, for Canada, by computing and unconditional transfer, with accumulator addressing, register addressing, register indirect addressing, directly addressable memory, immediately the number of addressable addressing five. So that we can think of the following instructions: (2008-06-22, Others, 232KB, 下载15次)

http://www.pudn.com/Download/item/id/495473.html

[文件格式] xiaoboquzao-chuzilunwen

小波用语语音去噪声,matlab实现,出自学位论文,相信对大家很有好处
wavelet language speech to noise, Matlab realized from the graduate thesis, we believe that the right will do much good (2006-09-03, matlab, 219KB, 下载820次)

http://www.pudn.com/Download/item/id/212086.html
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