//通過18B20檢測的數字溫度可在電腦上顯示當前溫度值 #include <reg52.h> #define uchar unsigned char #define uint unsigned int sbit DS=P2^2 //define interface uint temp // variable of temperature uchar flag1 // sign of the result positive or negative sbit dula=P2^6 sbit wela=P2^7
標簽： define unsigned include 18B20
上傳時間： 2014-01-19
上傳用戶：Andy123456
外國人開發的電磁時域有限差分方法工具包 Electromagnetic Finite-Difference Time-Domain (EmFDTD) is a basic two-dimensional FDTD code developed at the School of Electrical Engineering, Sharif University of Technology. This code has been written based on the standard Yee s FDTD algorithm. Applications include propagation, scattering, and diffraction of electromagnetic waves in homogeneous and non-homogeneous isotropic media for in-plane propagating waves. negative permittivites or permeabilities as well as dispersion is not included. Zero, Periodic, and Perfectly Matched Layer boundary conditions may be selectively applied to the solution domain. The program is best suited for study of propagation and diffraction of electromagnetic waves in Photonic Crystal structures. EmFDTD is written in MATLAB language and has been tested under MATLAB 5.0 and higher versions.
標簽： Finite-Difference Electromagnetic two-dimensio Time-Domain
上傳時間： 2014-11-24
上傳用戶：watch100
Shortest Paths with Multiplicative Cost. In a given undirected graph, the path cost is measured as a product of all the edges in the path. The weights are rational numbers (e.g., 0.25, 0.75, 3.75 etc) or integers (2, 3). There are no negative edges. Given such a graph as input, you are to output the shortest path between any two given vertices. Input is the adjacency matrix and the two vertices. You must output the path.
標簽： Multiplicative undirected Shortest measured
上傳時間： 2017-04-08
上傳用戶：邶刖
full wave rectifierDuring the period from 偽 to 蟺, the input voltage vs input current is are positive and the power flows from supply to the load. The converter is said to be operated at rectification mode .During the period from 蟺 to 蟺+偽 , the input voltage vs is negative and the input current is is positive and reverse power flows from load to the supply. The converter is said to be operated in inversion mode. Depending on the value of 偽, average output voltage can be either positive or negative and hence provides 2 quadrant operation.
標簽： input rectifierDuring the positive
上傳時間： 2017-04-10
上傳用戶：alan-ee
管腳號 管腳名稱 LEVER 管腳功能描述 1 VSS 0V 電源地 2 VDD 5.0V 電源電壓 3 VEE 5.0V~(-13V) 液晶顯示器驅動電壓 4 D/I H/L D/I=“H”,表示DB7~DB0為顯示數據 D/I=“L”,表示DB7~DB0為顯示指令數據 5 R/W H/L R/W=“H”,E=“H”,數據被讀到DB7~DB0 R/W=“L”,E=“H→L”, DB7~DB0的數據被寫到IR或DR 6 E H/L 使能信號：R/W=“L”,E信號下降沿鎖存DB7~DB0 R/W=“H”,E=“H” DRAM數據讀到DB7~DB0 7 DB0 H/L 數據線 8 DB1 H/L 數據線 9 DB2 H/L 數據線 10 DB3 H/L 數據線 11 DB4 H/L 數據線 12 DB5 H/L 數據線 13 DB6 H/L 數據線 14 DB7 H/L 數據線 15 CS1 L （19264A) 選擇IC1,即（左）64列 16 RESET L 復位控制信號，RST=0有效 17 CS2 L （19264A) 選擇IC2,即（中）64列 18 CS3 L （19264A) 選擇IC3,即（右）64列 19 V0 -9V negative Voltage for LCD driving 20 LED+ +5.0V The LED supply
上傳時間： 2014-01-01
上傳用戶：541657925
Two scripts are included here. 1. convsys.m - combines the state space representation of two systems connected in series. [Ao,Bo,Co,Do]=convsys(A1,B1,C1,D1,A2,B2,C2,D2) This algorithm gives the convolution of two state space representations | A1 B1 | | A2 B2 | u ==> | | ==> | | ==> y | C1 D1 | | C2 D2 | The algorithm also accepts state space objects as inputs and gives out a state space object as output. 2. sysfeedbk.m [Ao,Bo,Co,Do]=convsys(A1,B1,C1,D1,A2,B2,C2,D2) Gives the closed loop state space representation for two systems connected with negative feedback in the following manner. | A1 B1 | u ==> | | ==> y + o | C1 D1 | | - | | | | A2 B2 | | |= | |= | | C2 D2 | The zip file also contains checkcompatibility.m , which checks the compatibility of matrix dimensions in the system and cleanss.m which can be used to clean a state space representation.
標簽： representation included combines scripts
上傳時間： 2017-07-25
上傳用戶：semi1981
matlab有限元網格劃分程序 DistMesh is a simple MATLAB code for generation of unstructured triangular and tetrahedral meshes. It was developed by Per-Olof Persson (now at UC Berkeley) and Gilbert Strang in the Department of Mathematics at MIT. A detailed description of the program is provided in our SIAM Review paper, see documentation below. One reason that the code is short and simple is that the geometries are specified by Signed Distance Functions. These give the shortest distance from any point in space to the boundary of the domain. The sign is negative inside the region and positive outside. A simple example is the unit circle in 2-D, which has the distance function d=r-1, where r is the distance from the origin. For more complicated geometries the distance function can be computed by interpolation between values on a grid, a common representation for level set methods. For the actual mesh generation, DistMesh uses the Delaunay triangulation routine in MATLAB and tries to optimize the node locations by a force-based smoothing procedure. The topology is regularly updated by Delaunay. The boundary points are only allowed to move tangentially to the boundary by projections using the distance function. This iterative procedure typically results in very well-shaped meshes. Our aim with this code is simplicity, so that everyone can understand the code and modify it according to their needs. The code is not entirely robust (that is, it might not terminate and return a well-shaped mesh), and it is relatively slow. However, our current research shows that these issues can be resolved in an optimized C++ code, and we believe our simple MATLAB code is important for demonstration of the underlying principles. To use the code, simply download it from below and run it from MATLAB. For a quick demonstration, type "meshdemo2d" or "meshdemond". For more details see the documentation.
標簽： matlab有限元網格劃分程序
上傳時間： 2015-08-12
上傳用戶：凜風拂衣袖
本設計開發了一款基于單片機的指紋識別電子密碼鎖系統。該系統以ATmeg16單片機作為模塊核心，通過串口通信控制ZAZ-010指紋模塊實現錄取指紋并存儲指紋數據，并通過HS12864-15C液晶顯示比對流程及比對結果，輔以直流繼電器與發光二極管模擬開鎖的動作。本系統具有體積小、性價比高、傳輸速度快、適合家庭及單位使用。
上傳時間： 2016-05-22
上傳用戶：lucifer048
本設計開發了一款基于單片機的指紋識別電子密碼鎖系統。該系統以ATmeg16單片機作為模塊核心，通過串口通信控制ZAZ-010指紋模塊實現錄取指紋并存儲指紋數據，并通過HS12864-15C液晶顯示比對流程及比對結果，輔以直流繼電器與發光二極管模擬開鎖的動作。本系統具有體積小、性價比高、傳輸速度快、適合家庭及單位使用。
標簽： LCD 128 64 指紋識別 單片機控制 程序 液晶顯示
上傳時間： 2016-05-22
上傳用戶：lucifer048
貼出來和大家分享一下，文中借鑒來自互聯網和書籍 硬件平臺：康草EP2C5-V5 FPGA :EP2C5Q208C8N SDRAM:K4S641632k Flash:JS28F640 4位led，輸入0時亮 1位按鍵，有上拉，平時為高電平狀態 軟件平臺：Microsoft Windows xp Professional sp3(深度D版) Quartus II 10.0 SP1 Build: 262 Nios II IDE 10.0 SP1 Build: 262
上傳時間： 2018-10-31
上傳用戶：殘紅一號
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