使用VHDL语言编程，烧录在芯片运行的倒数5秒响4声短铃最后一声长音的数字钟...

除法器-Divider

由乘法器组成 单边带信号产生的 仿真源代码 msm (Composed of single sideband signal by the multiplier generated simulation source code msm)

verilog code for bus controller

用verilog语言编写的4位算术逻辑单元ALU,功能参考74181，包含.v文件以及测试用.vwf文件-Verilog languages with four arithmetic logic unit ALU, functional reference to 74,181, including. V documents and testing. Vwf document

布斯算法用于在计算机体系结构的两个二进制现在的乘法。随着处理器为转移的运行情况良好，不能轻易做乘法这就是为什么正在使用它。

说明：  HDB3编码Quartus2 10.0的工程，modelsim仿真，有实物图、仿真图以及源程序，适合做通信原理课程设计的同学参考使用(HDB3 encoding Quartus2 10.0 project, modelsim simulation, there are physical map, simulation diagrams and source code, suitable for students of communication theory courses designed for reference use)

vga编程。实现3种模式的vga控制，分别产生横彩条，竖彩条，棋格彩条的显示-vga programming. Realization of the three-mode vga control, generate horizontal color of the color of the shaft, and the chess grid color of the show

曼彻斯特编码技术用电压的变化表示0和1。规定在每个码元中间发生跳变。高→ 低的跳变表示0，低→ 高的跳变表示为1。每个码元中间都要发生跳变，接收端可将此变化提取出来作为同步信号，使接收端的时钟与发送设备的时钟保持一致-Manchester coding techniques that use voltage changes in 0 and 1. Provisions in the middle of each symbol hopping happen. High → low hopping express 0, low → high jump for the express one. Symbol between each transition must happen, this change in the receiver can be extracted as a synchronization signal to the receiving end of the clock and send the equipment to maintain the same clock

ps2接口源程序。标准的键盘和鼠标接口，在Xilinx SpartanII XC2S200 实验板上通过验证-ps2 interface source. Standard keyboard and mouse interface, in the experiments on-board Xilinx SpartanII XC2S200 validated

十字路口交通灯的单片机控制源代码 红黄绿三灯 还有数码管时间显示(Intersection traffic lights SCM source code red yellow three lights and LED time display)