8255参考设计VHDL源代码

基于FPGA设计的串口发送及接收程序，波特率可调(FPGA - based serial port sending and receiving)

verilogHDL语言编写，简单的FPGA脉冲程序，初学者必备。(verilogHDL language, a simple FPGA pulse program, beginners must.)

利用FPGA实现USB芯片CY7C68013与上位机的进行通信的系统，代码采用VHDL语言实现，利用状态机实现FPGA控制USB的数据传输，传输时序采用SLAVE FIFO实现

AXI4-Lite总线的主从机读写，例程及代码(AXI4-Lite Bus Host-Slave Read-Write, Routine and Code)

在fpga中对于pll无法完成的分频，可采用计数方式，本例用状态机实现对时钟的奇数分频。(Pll in fpga can not be completed in the sub-frequency counting method can be used, in this case with the state machine to achieve an odd number on the clock frequency.)

verilog支持noise噪声的端口port, 可以用于仿真运行. 评估噪声影响 Verilog port that supports noise and can be used for simulation run. Evaluate noise effects

LDPC的编码模块和解码模块，实现802-3an协议的编码(The module of LDPC to implement the coding of the 802-3an protocol)

EDA设计实验，用VHDL编写的数字时钟代码，能显示分，秒，小时。根据所设置的频率不同，能够调整时间快慢。-EDA design of experiments, prepared by VHDL code digital clock showing the hours, seconds, hours. According to the frequency of different settings, time to adjust speed.

三相PWM整流，实现功率双向流动,可保持直流侧电压稳定(three-phase PWM rectifier, power can bidirectional flow ，can maintain the stable DC voltage)

基于FPGA的交通灯代码，VHDL语言书写。适合新手学习vhdl语言时使用(FPGA-based traffic light code, VHDL language writing. Suitable for novice learning vhdl language used when)