一些vhdl的简单例子。直接解压，不用密码。

说明：  FPGA对系统50M时钟进行分频。FPGA最基本功能基础(FPGA Verilog program, key detection, program jitter elimination, jitter elimination, delay detection keys)

基于FPGA的频率测量，能测量方波信号的频率、占空比、相位差。范围100mHz~200MHz，精度0.0001Hz(The frequency measurement based on FPGA can measure the frequency, duty cycle and phase difference of the square wave signal. Range 100mHz~200MHz, precision 0.0001Hz)

说明：  OFDM基带处理的书籍和论文，以及发送和接收端源码。(OFDM baseband processing books and papers, as well as send and receive source code.)

此代码实现4人表决功能，4人中有三人同意即为通过。(Four voting)

多相抽取滤波器。分四相，两倍抽取，采用16阶FIR滤波器实现(Polyphase decimation filters. Divided into four phases, extracted twice using 16-order FIR filter implementation)

这是关于赢vhdl语言变得信号采集卡，很有实用性，大家可以来看看的。-This is about winning VHDL language has become signal acquisition card, is very practical, we can take a look at the.

LCD图形显示代码，已调试过，可以运行成功(LCD graphics display code has been debugged, you can run successfully)

实现basys3板子的串口通信，内容非常纤细，还带有数码管显示(Realization of serial communication of basys3 board)

Advanced FPGA Design - Architecture, Implementation, and Optimization(Advanced FPGA Design- Architecture, Implementation, and Optimization)

说明：  基于FPGA的数字式相位测量仪的设计与制作(FPGA-Based Digital Phase Meter Design and Production)