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Description: AVR键盘方案-AVR keyboard program
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Size: 62464 |
Author: 王木 |
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Description: 键盘扫描程序，可以用来对4*4矩阵键盘进行扫描。C语言程序-keyboard scanning procedure can be used to 4* 4 matrix keyboard scan. C Programming Language
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Size: 1024 |
Author: 吴松 |
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Description: 4X4矩阵式键盘识别程序，有效，刚用过。你可以往里面添加自己定义的函数-4x4 matrix keyboard identification procedures, effective and just used. You can add their own definitions to hide the function
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Size: 1024 |
Author: 王铁鑫 |
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Description: 4*4矩阵键盘扫描函数,用状态机实现,不用延时以消抖,只需在一个定时10~12ms左右的中断函数里调用,从而节省了单片机时间-4* 4 matrix keyboard scan function, the state machine to achieve, not delay to eliminate buffeting, only in a regular 10-12ms about the interruption function within the call, thereby saving the time of microcontroller
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Size: 1024 |
Author: lkh |
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Description: 本文给出基于单片机系统的16×15 三色LED 点阵双显示屏设计方案,采用动态显示原
理,配合优化的程序设计,在动态扫描方式下,得到较高刷新速率、画面清晰的三色显示效
果。
本设计实现了由红、黄、绿组成的十二种颜色搭配的静态和动态字符、文字、动画显
示：集成ASCII 码子库显示；四条广告语的十二种颜色循环显示；生动的动画显示。按键
控制上下左右移动及速度大小和灰度等级。
【关键词】
三色LED 显示屏 动态显示 单片机 双-In this paper, based on single-chip microcomputer system of 16 × 15 three-color LED dot-matrix dual-screen design, the use of dynamic display principle, with the optimized programming, in a dynamic scan mode, get a higher refresh rate, frame-accurate three- color display. The design by the red, yellow and green, composed of 12 kinds of colors of the static and dynamic characters, text, animation show: Integrated ASCII different library display four of the 12 kinds of advertisement cycle color display vivid animation show . About moving up and down buttons control the speed and size and gradation. [Key Words] tri-color LED display single-chip dual dynamic display
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Size: 189440 |
Author: www |
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Description: This paper introduces an affine invariant of trapezia, and the explicit constraint equation between the intrinsic matrix of a camera and the similarity invariants of a trapezium are established using the affine invariant. By this constraint, the inner parameters, motion parameters of the cameras and the similarity invariants of trapezia can be linearly determined using some prior knowledge on the cameras or the trapezia. The proposed algorithms have wide applicability since parallel lines are not rare in many scenes. Experimental results validate the proposed approaches. This work presents a unifying framework based on the parallelism constraint, and the previous methods based on the parallelograms or the parallelepipeds can be integrated into this framework.
Key words: invariant parallelism constraint camera calibration 3D reconstruction
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Size: 188416 |
Author: 王峰 |
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Description: 一个4*4矩阵键盘的VERILOG接口程序设计（FPGA）-A 4* 4 matrix keyboard interface program Verilog Design (FPGA)
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Size: 199680 |
Author: 林虎 |
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Description: 键盘扫描程序,从RS232口输出,4*4键盘矩阵-Keyboard scanning process, the output from the RS232 port, 4* 4 keyboard matrix
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Size: 1024 |
Author: 陈培 |
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Description: 用AT89S51的并行口P1接4×4矩阵键盘，以P1.0－P1.3作输入线，以P1.4－P1.7作输出线；在数码管上显示每个按键的“0－F”序号。-AT89S51 using the parallel port P1 then 4 × 4 matrix keyboard to P1.0-P1.3 as input lines to P1.4-P1.7 for output line in digital tube display each key of
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Size: 316416 |
Author: 小昭 |
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Description: 这是单片机驱动液晶显示器12864和键盘的源代码，其中12864的驱动芯片是ST7290，键盘是4*4的矩阵键盘。-This is a single-chip LCD driver and keyboard 12864 source code, of which 12,864 of the driver IC is ST7290, the keyboard is a 4* 4 matrix keyboard.
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Size: 55296 |
Author: 廖芳宇 |
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Description: 使用IAR编写的DS1302时钟芯片驱动和4*4矩阵按键的扫描函数，可以使用按键设置时间，采用msp430f149单片机-IAR prepared using DS1302 clock chip driver and 4* 4 matrix keypad scanning function, you can use the keys setup time, using MSP430F149 single-chip microcomputer
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Size: 43008 |
Author: longsky |
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Description: * 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 driver
* can support "SHIFT" keys. These keys are: SHIFT1, SHIFT2 and SHIFT3.
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Size: 6144 |
Author: davide yan |
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Description: 4键矩阵开关，有用的开关，用于单片机实验上的部分程序清单
-4 key matrix switch, a useful switch for single-chip experiments on a list of some of the procedures
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Size: 1112064 |
Author: 黄茂云 |
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Description: 4×4矩阵键盘键值LCD1602显示（汇编语言）,单片机的键盘基础设计-4 × 4 matrix keyboard key LCD1602 display (assembly language), single-chip based on the design of the keyboard
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Size: 14336 |
Author: joker |
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Description: 最近买了块开发板学习单片机，以下是电路原理图。不明白上面的4×4矩阵键盘(电路图最左上角）的编码原理。键盘的8条引线直接与p1.0^p1.7相连，疑惑的是即使按下任意按键也在p1口上读不到任何电平啊？
期待高手指点！-Recently bought a development board to study single-chip block, the following is the circuit schematic. Do not understand the above 4 × 4 matrix keyboard (circuit diagram most upper-left corner) encoding principle. 8-lead keyboard directly connected with the p1.0 ^ p1.7, doubts that even if the press any key I have also read p1 level no ah? Look forward to expert advice!
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Size: 944128 |
Author: 侯桂友 |
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Description: 4×4矩阵式键盘识别技术
（1．4×4矩阵键盘识别处理
（2．每个按键有它的行值和列值 ，行值和列值的组合就是识别这个按键的编码。矩阵的行线和列线分别通过两并行接口和CPU通信。每个按键的状态同样需变成数字量“0”和“1”，开关的一端（列线）通过电阻接VCC，而接地是通过程序输出数字“0”实现的。键盘处理程序的任务是：确定有无键按下，判断哪一个键按下，键的功能是什么；还要消除按键在闭合或断开时的抖动。两个并行口中，一个输出扫描码，使按键逐行动态接地，另一个并行口输入按键状态，由行扫描值和回馈信号共同形成键编码而识别按键，通过软件查表，查出该键的功能。
-4 × 4 matrix keyboard recognition technology
(1.4 × 4 matrix keyboard recognition processing
(2. Each key has its row value and column value, the value and the value of the portfolio is set out to identify the key number. Matrix line line line and out through the two parallel CPU interface and communications. The state of each key the same need to become a digital "0" and "1", switch on one end (line out) then through the resistor VCC, and ground through the output number "0" to achieve. keyboard processing task is to: determine whether the key pressed to determine which key to press, what key features would also like to eliminate the disconnect button when in the closed or jitter. two parallel population, a key scan output, so that key dynamic grounding line, and the other parallel port input keys, and by the line scan values and the formation of a common feedback signal coding and identification of key buttons, through the software look-up table for identifying the key fu
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Size: 1024 |
Author: 廖海涛 |
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Description: LPC2103 下的4*4矩阵按键 的基本程序 调试通过，可以直接使用 ADS环境下的-LPC2103 under 4* 4 matrix of keys through the basic procedures for debugging, you can directly use the ADS environment
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Size: 1024 |
Author: 李迟 |
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Description: 一个关于nios控制lcd12864和4*4矩阵键盘的源代码，详细注释-A control on the nios lcd12864 and 4* 4 matrix keyboard source code, detailed notes
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Size: 2048 |
Author: 石头 |
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Description: 文章是基于压缩感知理论的测量矩阵的研究。测量矩阵的选择是压缩感知理论的关键点，直接关系到信号重建效果的好坏！-Article is based on the theory of compressed sensing matrix measurement research. Measurement matrix of choice is the key to the theory of compressed sensing point, signal reconstruction is directly related to the effects of good or bad!
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Size: 2275328 |
Author: wangtao |
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Description: PIC18F452的4*4矩阵按键，不是用反转法，而是用行扫描法，实现功能是单键有效，多键不操作的功能。-PIC18F452 4* 4 matrix keys, not with inversion method, but with the line scanning method, to achieve effective function is a single bond, multi-key does not operate.
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Size: 37888 |
Author: linshaobin |
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