Electronic code locks, FPGA

采用Verilog HDL硬件语言设计,实现基本的公用电话计费功能,设计完整.-Using Verilog HDL language hardware design, the realization of the basic public telephone billing function, design integrity.

由Verilog编写在FPGA实现sobel算法应用于图像边缘检测，工程文件可在quartus13.1以上版本打开；工程使用到ram、fifo、pll三种ip核，design文件夹下包含ram、fifo、vga控制以及串口收发和sobel算法模块，sim和doc文件夹下分别包含modelsim的仿真模块和仿真结果；测试时将200*200分辨率的图片用matlab文件夹下的matlab脚本压缩、二值化，再将生成文件中数据用串口发给FPGA，边缘检测结果会通过VGA输出。(Written by Verilog in the FPGA implementation sobel algorithm applied to the edge detection of the image, the project file can be opened in the quartus13.1 or later project use ram, fifo, pll three ip kernel, design folder contains ram, fifo, vga control and Serial port transceiver and sobel algorithm module, sim and doc folder, respectively, include modelsim simulation module and simulation results test will be 200* 200 resolution picture matlab folder under the matlab script compression, binarization, and then generated Data in the file with the serial port to the FPGA, edge detection results will be output through the VGA.)

多人抢答器 源代码 实用 课程设计 用用VHDL语言-The source code for more than Responder practical courses designed for use with the VHDL language

说明：  脉冲宽度调制，VHDL代码编写，包括QUARTUSII和MODELSIM工程以及testbench(Pulse width modulation, VHDL coding, including QUARTUSII and ModelSim engineering and Testbench)

verilog中调用门级电路的实验程序，实现了门级舰模-call Verilog gate-level circuit of the experimental procedures, to achieve a gate-level ship-mode

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     提供2个VHDL程序实现键盘显示的功能，第一个是16*16点阵显示“北京欢迎”，用VHDL语言编程实现，串烧在单片机实验工具箱上，让单片机点阵键盘上依次显示“北京欢迎”的字样。另附有LED数码管循环显示0～9数字的VHDL程序 ，成功串烧后，键盘上连续显示0~9这10个数字。

说明：  HDMI做为视频输出输入接口已经广泛使用很长时间，主要通过TMDS差分编码传输。本实验通过在HDMI屏幕上显示彩条和输入输出环通实验，来练习视频的时序和视频颜色的表示，为后面视频处理实验做个基础。(HDMI as video output input interface has been widely used for a long time, mainly through TMDS differential coding transmission. In this experiment, by displaying color bars and input/output loop experiments on HDMI screen, video timing sequence and video color representation are practiced to lay a foundation for video processing experiments later)

本文通过大量的例子讲解VHDL。对于初学者来说是一本非常好的 教材-Based on the large number of examples of VHDL. For a newcomer it is a very good teaching

这是一个简单的除法器（32bit/16bit),采用移位相减法-This is a simple divider (32bit/16bit), using phase shift subtraction