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Wavelets have widely been used in many signal and image processing applications. In this paper, a new
serial-parallel architecture for wavelet-based image compression is introduced. It is based on a 4-tap wavelet
transform, which is realised usin
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USB、串口、并口是PC机和外设进行通讯的常用接口,但对于数据量大的图像来说,若利用串行RS-232协议进行数据采集,速度不能达到图像数据采集所需的要求;而用USB进行数据采集,虽能满足所需速度,但要求外设必须支持USB协议,而USB协议与常用工程软件的接口还不普及,给使用带来困难。有些用户为了利用标准并行口(SPP)进行数据采集,但SPP协议的150kb/s传输率对于图像数据采集,同样显得太低。因此,为了采集数据量大的图像数据,本文采用了具有较高传输速率的增强型并行口协议(EPP)和FPGA,
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ST7787 芯片的SPEC,比亚迪2.4inchLCM的SPEC。The ST7787 is a single-chip controller/driver for 262K-color, graphic type TFT-LCD. It consists of 720 source line and
320 gate line driving circuits. This chip is capable of connecting directly to an external micr
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串行通信使用单条数据线代替了并行通信的8位数据线,传输的距离更远。通信接口每次从CPU得到8位数据-Serial communication using a single parallel data lines, instead of 8-bit data communication lines, transmission distance farther. Communication interface for each 8-bit data from the CPU to be ...
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s77529.pdf
The ST7529 is a driver & controller LSI for 32 gray scale graphic dot-matrix liquid crystal display systems. It generates 255
Segment and 160 Common driver circuits. This chip is connected directly to a microprocessor, accepts Serial P
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单片机数据传输接口技术研究,是一篇毕业论文,1 引言
2 单片机数据传输接口概述
2.1 单片机并行数据接口
2.2 单片机串行数据接口
2.3 串行数据接口扩展
3 I2C总线接口
3.1 I2C总线协议
3.2 I2C总线接口(协议)的软件模拟
3.3 实例---- I2C总线接口8位模数/数模转换器PCF8591
4 SPI串行总线接口
4.1 SPI串行总线协议
4.2 SPI串行总线器件
4.3 实例----SPI接口
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parallel to serial code vhdl
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PR1245A控制器是专门用于驱动LTP1245A热敏机芯的。同时带有并行接
口和串行接口,自动切纸功能-The PR1245A controller is designed to drive LTP1245A thermal movement. With a parallel interface and serial interface, automatic cutting function
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The AD7654 is a low cost, simultaneous sampling, dual-channel, 16-bit, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. It contains two low noise, wide bandwidth, track-and-hold amplifiers that allo
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序列平行轉換器,對輸入的資料流進行轉換功用-Serial parallel converter to convert the input data stream function
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this routine implements the serial descrambling algorithm in parallel form
for the LSFR polynomial: x^16+x^5+x^4+x^3+1
this advances the LSFR 8 bits every time it is called
this requires fewer than 25 xor gates to implement (with a stati
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Welch 算法是一种应用很广的经典功率谱估计算法。但是面对现在日益膨胀的海量数据,单纯在串行Matlab环境下运行Welch 算法势必耗费大量的运算时间。根据Welch 算法的原理,在Linux 集群环境及消息传递接口MPI 的支持下,采用主从并行编程模式,实现了一个开源的Welch 并行算法PMWelch。实验结果表明,PMWelch 不仅具有Matlab 下Welch 算法一样的运算结果,还可以大幅减少运行时间.-It is well known that Welch algorithm
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单片机串行数据转为并行数据,很好的程序,单片机100例里面的例子-MCU serial data to parallel data, a very good program, microcontroller 100 cases inside the case
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介绍了软件无线电传统的嵌入式系统并行总线传输方式,分析了高速串行总线相对于并行
总线的优势,比较了当前常用的几种高速串行总线的优劣-It introduces traditional embedded systems software radio parallel bus transmission, high-speed serial bus analysis with respect to the advantages of the parallel bus, compare the pr
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将带查询序列分成k段,可将待比对序列的索引表分成几部分,并将这几部分分别存放于几台计算机节点上。在每一台计算机节点上,源序列的子序列都只与本地的索引表中的每一子序列进行比较,而各计算机节点上的比较过程是同时执行的,这就将串行的比较过程变成了并行的比较过程-take the query sequence into k segments, can be compared to the sequence of the index table is divided into several parts,
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12864黑白LCD通用程序,串口和并口选择使用,可按钮调节对比度和手动自动切换画面-12864 Black and white LCD common procedures, serial and parallel ports choose to use, you can button to adjust the contrast and manual and automatic switching screen
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下面简要介绍常用的几种类型的AD的基本原理及特点:积分型、逐次逼近型、并行比较型/串并行型、Σ-Δ调制型、电容阵列逐次比较型及压频变换型。
- Below is a brief introduction to the basic principle and characteristics of several common types of AD: integral, successive approximation type, parallel type/serial parallel t
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MFC 开发的打印源码,可以连接斑马打印机等其它打印机,支持 串口 和 LPT并口 打印两种方式,网上资源实在太少,得之不易,于是分享给大家-
MFC 开发的打印源码,可以连接斑马打印机等其它打印机,支持 串口 和 LPT并口 打印两种方式,网上资源实在太少,得之不易,于是分享给大家
Print source MFC development, can be connected to other Zebra printer printer, support serial and LP
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