VHDL语言进行，调试通

四位动态数码管显示数字时钟的分位和秒位。工具：Quartus ii 6.0 语言：VHDL-4 shows the number of dynamic digital tube digital clock and seconds bit. Tools: Quartus ii 6.0 Language: VHDL

verilog写的数字频率计的选择模块,用与显示的选择-written in Verilog digital frequency meter option module, used and display options

BCD to 7 segments display decoder

计数器是数字系统中使用最多的时序电路，它不仅能用于对时钟脉冲计数，还可以用于分频、定时、产生节拍脉冲和脉冲序列以及进行数字运算等。(Counter is the most frequently used sequential circuit in digital system. It can be used not only for counting clock pulses, but also for frequency division, timing, generating beat pulses and pulse sequences, and performing digital operations.)

使用并行结构对32位数据进行前导零检测，使用Verilog编程(Use parallel structure to the 32-bit data, leading zero detection, using Verilog Programming)

说明：  基于高清视频的3D人脸识别源代码，四万多行，经过FPGA实际验证，最近调试完毕。(The source code of 3D face recognition based on HD video, more than 40,000 lines, has been verified by the actual FPGA, and has been debugged recently.)

说明：  利用ISE编写的产生WALSH码的verilog程序，简单易懂，稍稍修改就可以产生出自己想的8 16 32 64位的WALSH码。。(Prepared using ISE verilog code generated WALSH procedures, easy to understand, a little modification can generate their own like the 8,16，32，64-bit code WALSH. .)

HDB3_verilog编码程序,附有文字解说,格式整齐,便于观看(HDB3_verilog coding procedures)

能够完美产生数字地面电视（DTMB）的信源的程序。帧头模式为模式一。信道可选择，信号加入频偏，延时，后经滤波器后输出。(Able to produce perfect digital terrestrial television (DTMB) of the source program. Mode is the mode a header. Channels to choose from, the signal adding offset, delay, after the filter output.)

基于FPGA的Sobel边缘检测算法的实现与仿真。此程序提供算法的verliog实现。(Implementation and Simulation of Sobel edge detection algorithm based on FPGA. This program provides the verliog implementation of the algorithm.)