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共 67 篇文章
column 相关的电子技术资料，包括技术文档、应用笔记、电路设计、代码示例等，共 67 篇文章，持续更新中。
基于TTL对单片机矩阵键盘算法的改进
<p>文章针对目前单片机矩阵键盘模块的低实时性问题,设计了一种基于TTL去抖算法的单片机矩阵键盘算法。利用TTL去抖算法的间隔时间采样机制以及双循环扫描法的逐行逐列扫描机制,保证矩阵键盘模块响应按键的实时性以及识别按键的准确性。实验结果表明,该矩阵键盘算法识别按键准,响应时间低,能够识别组合键,通用性强。</p><p>Aiming at the low real time problem of M
基于UPD70F3614单片机汽车方向柱锁电控系统设计
<p>设计了一款以UPD70F3614为核心CPU的汽车方向柱锁(ESCL)控制系统。系统包含分布式电源设计、双CPU控制,CAN外部通信,主副CPU内部通信,H桥电机驱动模块及相关软启动控制。介绍了ESCL各模块基本原理与实现方法,并对系统的基本测试方法进行了介绍,本系统的设计完成了初样并得到了较好的验证。</p><p>A vehicle direction column lock (ESCL)
FPGA Spartan6 CSG324数据手册
<p>The BUFIO2 clocking region column lists the BUFIO2 clock sources that connect to the I/Oclock input for the associated pin. For more information see Clock Inputs and BUFIO2Clocking Regions in Chapt
网络是怎样连接的_户根勤
<p><img src="/uploads/pic/1e/41e/e61fb239653143a82c0397b797d5a41e-1.png" alt="网络是怎样连接的_户根勤" title="网络是怎样连接的_户根勤"></p><p>网络是怎样连接的_户根勤---解压密码：666666</p><p>目录</p><p>浏览器生成消息 1</p><p>——探索浏览器内部</p><p>1.1 生成
基于FPGA设计的sdram读写测试实验Verilog逻辑源码Quartus工程文件+文档说明 DR
<p>基于FPGA设计的sdram读写测试实验Verilog逻辑源码Quartus工程文件+文档说明，DRAM选用海力士公司的 HY57V2562 型号,容量为的 256Mbit,采用了 54 引脚的</p><p>TSOP 封装, 数据宽度都为 16 位, 工作电压为 3.3V,并丏采用同步接口方式所有的信号都是时钟信号。FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus
FPGA读取OV5640摄像头数据并通过VGA或LCD屏显示输出的Verilog逻辑源码Quartu
<p>FPGA读取OV5640摄像头数据并通过VGA或LCD屏显示输出的Verilog逻辑源码Quartus工程文件+文档说明，FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus版本17.1。</p><p>module top(</p><p> input &nbs
FPGA读写SD卡读取BMP图片通过LCD显示例程实验 Verilog逻辑源码Quartus工程文件
<p>FPGA读写SD卡读取BMP图片通过LCD显示例程实验 Verilog逻辑源码Quartus工程文件+文档说明,FPGA型号Cyclone4E系列中的EP4CE6F17C8，Quartus版本17.1。</p><p>1 实验简介</p><p>在前面的实验中我们练习了 SD 卡读写，VGA 视频显示等例程，本实验将 SD 卡里的 BMP 图</p><p>片读出，写入到外部存储器，再通过 VGA
说明： column_list列出要添加数据的列名。在给表或视图中部分列添加数据时
说明：
column_list列出要添加数据的列名。在给表或视图中部分列添加数据时，必须使用该选项说明这部分列名。
DEFAULT VALUES说明向表中所有列插入其缺省值。对于具有INDENTITY属性或timestamp数据类型的列，系统将自动插入下一个适当值。对于没有设置缺省值的列，根据它们是否允许空值，将插入null或返回一错误信息。
Replace every element on the diagonal of an array with the sum of the elements on the current column
Replace every element on the diagonal of an array with the sum of the elements on the current column OR row. Labview
This is program with source code to convert ascii text files to the maxicode barcode standard.
This is program with source code to convert ascii text files to the maxicode barcode standard.
The input file consists of two columns. The first column represents a code and the second column is
Playfair Cipher 1.not even the large number of keys in a monoalphabetic cipher provides security 2
Playfair Cipher
1.not even the large number of keys in a monoalphabetic cipher provides security
2.one approach to improving security was to encrypt multiple letters
3.the Playfair Cipher is an exa
This software is a Matlab implementation of restricted sampling from Gaussian distribution, and samp
This software is a Matlab implementation of restricted sampling from Gaussian distribution, and sample x (column vector) from N(x_mu, x_var), restricted in x_min<=x<=x_max.
* The keyboard is assumed to be a matrix having 4 rows by 6 columns. However, this code works for an
* The keyboard is assumed to be a matrix having 4 rows by 6 columns. However, this code works for any
* matrix arrangements up to an 8 x 8 matrix. By using from one to three of the column inputs, the
The program constructs girth-twelve column-weight QC-LPDC codes. The rate can be changed by changing
The program constructs girth-twelve column-weight QC-LPDC codes. The rate can be changed by changing k(row-weight), size is changed by varying m(sub-matrix size).
ofdm信道特性 Channel transmission simulator Channel transmission simulator ％ ％ inputs: ％ sig2 - noi
ofdm信道特性
Channel transmission simulator
Channel transmission simulator
％
％ inputs:
％ sig2 - noise variance
％ Mt - number of Tx antennas
％ Mr - number of Rx antennas
％ x - vector of complex inp
Column permutation cipher是基于置换的加密解密方式。利用本程序可实现Column permutation cipher的加密和解密。
Column permutation cipher是基于置换的加密解密方式。利用本程序可实现Column permutation cipher的加密和解密。
星历表计算软件PyEphem指南
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<span style="font-size:10.000000pt;font-family:'TimesNewRoman';">PyEphem</span><span style="font-size:10.0
I built the Superlist control whilst developing an RSS reader called FeedGhost. Although there are p
I built the Superlist control whilst developing an RSS reader called FeedGhost. Although there are plenty of commercial grouped list controls available I wanted to have total control over the code and
红外解码程序
/*<br />
* _168ZHONGDUAN2.c<br />
*<br />
* Created: 2014/11/2 15:12:45<br />
* Author: lenovo<br />
*/ <br />
<br />
<br />
#include <avr/io.h><br />
#i
TFIND searches for one or more strings (boolean AND) in a text file. TFIND reports all lines whe
TFIND
searches for one or more strings (boolean AND) in a text file.
TFIND reports all lines where the string(s) were found (or NOT found
by option).
The search can be limited to a field in