系数为4的扰码生成器，并每四位扰码产生一个触发串并转换的触发信号，可用于4b/5b编码的触发信号。verilog程序，带test程序...

New files for pudn website

一个时钟程序，还有跑表，感觉相当不错的，有需要就下载吧-A clock procedures, as well as stopwatch, I feel pretty good, there is a need to download it

FPGA在直流电机调速中的应用,利用fpga进行PID闭环控制(tell us speed control for DC motor by FPGA,use fpga for PID circle control)

vhdl code for programming

基于Verilog HDL的完整数字跑表工程，在试验机台上运行验证通过了的。 用8位7段数码管分别显示微妙，秒，分。 有开始，暂停，复位功能。 学习VerilogHDL的经典例子，添加了显示功能。-Complete Verilog HDL-based digital stopwatch works in the test machine is running verify pass the platform. With 8-bit 7-segment digital tube showed the delicate, seconds, minutes. Has started, pause, reset. Learning VerilogHDL classic example of adding a display.

program for half subtractor.

relative cpu design implementation

说明：  用VHDL语言设计一个校验器，用for loop实现8位数据的偶校验，(With a for loop to achieve 8-bit data parity)

说明：  分数时延FIR滤波器FPGA设计的相关资料及软件无线电实验平台MFSS6842使用说明(Fractional delay FIR filter FPGA design related information and software radio experimental platform MFSS6842 instructions)

FSM_test for textbanch in vhdl-FSM_test