pwm virterbi 译码器

用verilog hdl编写的248分频器,有助于对verilog编程语言的了解，可直接用于FPGA编程

FPGA上的一个半加器实例程序，通过测试，可以直接运行在fpga开发板上。(One and a half adder example on FPGA program, through the test, can be run directly on the FPGA development board)

Encryption has become a part and parcel of our lives and we have accepted the fact that data is going to encrypted and decrypted at various stages. However, there is not a single encryption algorithm followed everywhere. There are a number of algorithms existing, and I feel there is a need to understand how they work. So this text explains a number of popular encryption algorithms and makes you look at them as mathematical formulas.

FPGA经验总结：时序是设计出来的 我们在做详细设计的时候，对于一些信号的时序肯定会做一些调整的，但是这种时序的调整最多只能波及到本一级模块，而不能影响到整个设计。(FPGA Experience: Timing is designed to do the detailed design of our time, for some signal timing will certainly make some adjustments, but adjust this timing can only spread to up to this level of the module, but not affect the whole design.)

若农场路无车辆，则在高速路保持绿灯。在探测农场路有车辆，高速路上的交通灯应由绿到黄，再到红，并允许农场路方向灯变绿，绿灯亮一段时间，由绿变黄再到红。(If there is no vehicle on the farm road, keep the green light on the highway. There are vehicles on the farm road, the traffic lights on the high speed road should be green to yellow, and then red, and allow the farm road lights to turn green, the green light for a period of time, from green to yellow, then to red.)

FSK/MSK/GFSK/GMSK DIGITAL DEMODULATOR VHDL SOURCE CODE OVERVIEW

基于basys3制作的简易四则运算计算器，能够计算加减乘除，将每部分代码封装成ip和在vivado 2015.4上进行开发，结果正确，

说明：  ADD MOV MOVi SUB四指令cpu设计，qutartus，(Design of four-instruction CPU)

测试AD9226采集数据能力，并将数据发送到串口显示为电压值.采用的是cyclone iv的FPGA。

eda的入门学习课件，老师不错，内容页挺好的(eda learning files)