编码器-使用if else 语句

实现在屏幕上显示绿色和红色相间的水平条纹。其中，vga_640x480模块将产生行同步信号hsyn和场同步信号 vsync; vga_stripes模块将产生red、green和blue三个输出。(The horizontal stripes of green and red are displayed on the screen. Among them, vga_640x480 module will produce line synchronization signal Hsyn and field synchronization signal vsync; vga_stripes module will produce red, green and blue three outputs.)

实现拟想要的音乐，基于at89s51单片机的电子琴设计！(To achieve the desired music to be based at89s51 keyboard microcontroller design!)

利用matlab设计了一个切比雪夫滤波器，并且对滤波器性能进行了仿真分析。(Using the matlab design a chebyshev filter, and has carried on the simulation analysis on filter performance. )

说明：  microsemi的Libero IDE 软件内部IP核详解(Microsemi's Libero IDE software internal IP kernel details)

vga interface with text rom. font size 80x40. core need core regeneration.

xilinx spartan6的pcie pio源代码(xilinx spartan6 pcie pio demo)

- RS码是Reed-Solomon 码（理德－所罗门码）的简称，它是一类非二进制BCH码，在RS码中，输入信号分成k·m比特一组，每组包括k个符号，每个符号由m个比特组成。(- RS code is a Reed-Solomon code (Reed- Solomon codes) for short, is a non-binary BCH code, the RS code, the input signal is divided into a set of k · m bits, each including k symbols, each symbol consists of m bits.)

一种能简单的实现I2C通讯的代码，对于主机和从机之间的通讯讲解的很清楚。(A Code for I2C Communication)

combinatorial modules

按键控制LED流水灯；按键1按下前8个灯从左到右依次点亮，按键2按下中间前8个灯从左到右依次点亮，按键3按下所有灯全亮(Water control button LED lights sequentially lit buttons the eight lights left to right 1 Press button 2 press from left to right is lit in the middle eight lights, key 3 Press All full bright light)