135个经典VerilogHDL源码和说明文档，入门的好资料

one of example about hardware design language

说明：  nios开发板电路图CycloneII_NiosII_2C35_Rev02_DB_SCH.zip(nios development board circuit CycloneII_NiosII_2C35_Rev02_DB_SCH.zip)

先用Matlab理论仿真，再用Verilog语言在ISE环境下编写程序，可通过手机发送指令来控制上下变频器的参数。(Firstly, we use the theory of MATLAB to simulate, and then use Verilog language to write programs in ISE environment. The parameters of up-down converter can be controlled by sending instructions from mobile phone.)

伪随机序列FPGA 通过仿真 M3000(Pseudo-random sequence M3000 FPGA simulation)

这是执行高速的代码通用异步收发器代码是用VHDL写的语言.UART是一种在传输端进行并行输入和串行输出，在接收端进行串行输入和并行输出的算法。

讲述了dds直接数字频率合成的基本原理，同时用ＶＨＤＬ语言编写dds原代码用于生成正弦波，并在ISE开发平台进行仿真和MATLAB验证正弦波输出结果(described dds direct digital frequency synthesis of the basic tenets addition to the use of VHDL prepared dds source used to produce sine, and ISE development platform for simulation and verification MATLAB sine wave output)

高通滤波器的仿真（由matlab和simulink两种方法实现）源文件以及图片示例(Simulation of the high-pass filter (implemented by the two methods matlab and simulink) source files as well as images example)

说明：  实现二项混合式步进电机的驱动，和步进电机的细分程序。(The driving of binomial hybrid stepper motor and the subdivision program of stepper motor are realized.)

基于NIOS II的SD CARD MUSIC PLAYER源码，包括硬件SOPC-NIOS II based on the SD CARD MUSIC PLAYER source, including hardware SOPC

一个用vhdl硬件描述语言实现的一个比较简单的除法器-an divider using vhdl