I wrote this code early this year using ColdFire MCF5213 in codewarrior IDE. The LCD is STN B/W 320x240 dot matrix LCD. The code include 3 different fonts, and basic LCD driver. All original!
标签： this codewarrior ColdFire wrote
上传时间： 2013-12-20
上传用户：皇族传媒
Thinking in C++(Second Edition) 国外经典C++原版书库《C++编程思想(英文版.第2版)》/(美)埃克尔(Eckel,B)著 十分经典、难得！
标签： Thinking Edition Second Eckel
上传时间： 2016-08-17
上传用户：520
Data Structures and Algorithms with Object-Oriented Design Patterns in Java Bruno R. Preiss B.A.Sc., M.A.Sc., Ph.D., P.Eng. Associate Professor Department of Electrical and Computer Engineering University of Waterloo, Waterloo, Canada
标签： B.A.S R. Object-Oriented Algorithms
上传时间： 2017-03-07
上传用户：z754970244
随着光伏发电系统快速发展,以及电动汽车充电桩的普及,传统的剩余电流保护器无法满足实际需求。介绍了一款B型剩余电流保护器,采用磁调制剩余电流互感器和零序电流互感器采集剩余电流。根据GB/T 22794—2017标准要求,可识别1 kHz及以下的正弦交流、带和不带直流分量的脉动直流、平滑直流等剩余电流信号。经信号调理电路将电压信号送到单片机进行采集和判断。通过试验测试,该样机在测试精度和速度上均符合国家标准的相关要求。The rapid development of photovoltaic power generation systems and the popularity of electric vehicle charging piles make the traditional residual current protective devices unable to meet the actual demand.This paper proposed a type B residual current protective device,which uses the magnetically modulated residual current transformer and the zero sequence current transformer to acquire the residual current.According to the requirements of GB/T 22794—2017,the type B residual current protective device can detect sinusoidal AC residual current of 1kHz and below 1kHz,pulsating DC residual current with and without DC component,smooth DC residual current and so on.The signal processing circuit sends the voltage signal to the MCU for acquisition and judgment.Through experimental tests,the device meets the relevant requirements of national standards in terms of test accuracy and speed.
标签： 电流保护器
上传时间： 2022-03-27
上传用户：
针对目前使用的RS232接口数字化B超键盘存在PC主机启动时不能设置BIOS，提出一种PS2键盘的设计方法。基于W78E052D单片机，采用8通道串行A/D转换器设计了8个TGC电位器信息采集电路，电位器位置信息以键盘扫描码序列形式发送，正交编码器信号通过XC9536XL转换为单片机可接收的中断信号，软件接收到中断信息后等效处理成按键。结果表明，在满足开机可设置BIOS同时，又可实现超声特有功能，不需要专门设计驱动程序，接口简单，成本低。 Abstract: Aiming at the problem of the digital ultrasonic diagnostic imaging system keyboard with RS232 interface currently used couldn?蒺t set the BIOS when the PC boot， this paper proposed a design method of PS2 keyboards. Based on W78E052D microcontroller，designed eight TGC potentiometers information acquisition circuit with 8-channel serial A/D converter， potentiometer position information sent out with keyboard scan code sequentially.The control circuit based on XC9536 CPLD is used for converting the mechanical actions of the encoders into the signals that can be identified by the MCU， software received interrupt information and equivalently treatmented as key. The results show that the BIOS can be set to meet the boot， ultrasound specific functionality can be achieved at the same time， it does not require specially designed driver，the interface is simple and low cost.
上传时间： 2013-10-10
上传用户：asdfasdfd
* "Copyright (c) 2006 Robert B. Reese ("AUTHOR")" * All rights reserved. * (R. Reese, reese@ece.msstate.edu, Mississippi State University) * IN NO EVENT SHALL THE "AUTHOR" BE LIABLE TO ANY PARTY FOR * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE "AUTHOR" * HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
上传时间： 2015-09-24
上传用户：mpquest
Verilog HDL: Magnitude For a vector (a,b), the magnitude representation is the following: A common approach to implementing these arithmetic functions is to use the Coordinate Rotation Digital Computer (CORDIC) algorithm. The CORDIC algorithm calculates the trigonometric functions of sine, cosine, magnitude, and phase using an iterative process. It is made up of a series of micro-rotations of the vector by a set of predetermined constants, which are powers of two. Using binary arithmetic, this algorithm essentially replaces multipliers with shift and add operations. In a Stratix™ device, it is possible to calculate some of these arithmetic functions directly, without having to implement the CORDIC algorithm.
标签： representation Magnitude the magnitude
上传时间： 2013-12-24
上传用户：金宜
design LP,HP,B S digital Butterworth and Chebyshev filter. All array has been specified internally,so user only need to input f1,f2,f3,f4,fs(in hz), alpha1,alpha2(in db) and iband (to specify the type of to design). This program output hk(z)=bk(z)/ak(z),k=1,2,..., ksection and the freq.
标签： Butterworth internally Chebyshev specified
上传时间： 2015-11-08
上传用户：253189838
基于verilog HDL的自动售货机控制电路设计: 可以对5种不同种类的货物进行自动售货,价格分别为A=1.00,B=1.50,C=1.80,D=3.10,E=5.00 。售货机可以接受1元,5角,1角三种硬币(即有三种输入信号IY,IWJ,IYJ),并且在一个3位7段LED(二位代表元,一位代表角)显示以投入的总钱数，最大9.90元，如果大于该数值，新投入的硬币会退出,选择货物的输入信号Ia,Ib,Ic,Id,Ie和一个放弃信号In,输出指示信号为 Sa, Sb ,Sc ,Sd, Se 分别表示售出相应的货物,同时输出的信号yuan, jiao代表找零,相应每个脉冲代表找零相应的硬币，上述输入和输出信号均是一个固定宽度的脉冲信号。
上传时间： 2016-07-12
上传用户：lanwei
Matlab实现： Erlang B model(M/M/n/n)与 Erlang C model排队系统的模拟，并画出阻塞概率(P)与负载(A=lamda/miu in Erlang)的关系图。用法：运行RunMe
上传时间： 2014-01-02
上传用户：wcl168881111111
