这是一个用vhdl编的多功能电子秒表，可以记录几个人的时间，并且可以在跑秒的时候查看记录。。〔原创〕...

AGC(自动增益放大) Verilog代码 设计可以参考(AGC (automatic gain control) can refer to the Verilog code design )

下面给定 zip 包含各项的组合电路与时序电路设计的 vhdl 代码二进制加法器 （全以及一半）、 二进制比较器、 二进制交易加法器，bcd 码与二进制并行加法器，j k 翻转翻牌，像拿倒了计数器，计数器等十年对抗等以及源代码、 测试台架波形 (ubuntu 支持) 还提供了 pdf 和屏幕截图的 RTL 原理图和技术示意图。

7段数码显示译码器设计7段数码是纯组合电路，通常的小规模专用IC，如74或4000系列的器件只能作十进制BCD码译码，然而数字系统中的数据处理和运算都是二进制的，所以输出表达都是十六进制的，为了满足十六进制数的译码显示，最方便的方法就是利用译码程序在FPGA/CPLD中来实现。例子作为七段译码器，输出信号LED7S的7位分别接数码管的7个段，高位在左，低位在右。例如当LED7S输出为“1101101”时，数码管的7个段g、f、e、d、c、b、a分别接1、1、0、1、1、0、1；接有高电平的段发亮，于是数码管显示“5”。-7 digital display decoder design 7 Digital is pure combinational circuits, usually of small-scale dedicated IC, such as 74 or 4000 Series devices can only be used to decimal BCD decoder, but digital systems in the data processing and computing are binary, so the output expression are hexadecimal, and hexadecimal number in order to meet the needs of the decoding shows that the most convenient way is to use decoding process in FPGA/CPLD in to achieve. Seven-Segment decoder as an example, the output signal of the seven were LED7S access digital pipe 7 above, high in the left, low in the right. For example, when LED7S output as

实现4倍抽取的CIC抽取滤波器模块的Verilog实现，在对数据进行抽取之前，首先进行滤波(Extracted 4 times realize CIC decimation filter module Verilog realize that in the data collected before the first filter)

说明：  高斯最小频移键控（Gaussian Filtered Minimum Shift Keying），这是GSM系统采用的调制方式。数字调制解调技术是数字蜂窝移动通信系统空中接口的重要组成部分。GMSK调制是在MSK（最小频移键控）调制器之前插入高斯低通预调制滤波器这样一种调制方式。GMSK提高了数字移动通信的频谱利用率和通信质量。(Gauss Filtered Minimum Shift Keying is a modulation method used in GSM system. Digital modem technology is an important part of air interface of digital cellular mobile communication system. GMSK modulation is a method of inserting a Gaussian low-pass pre-modulation filter before the MSK (minimum frequency shift keying) modulator. GMSK improves the spectrum utilization and communication quality of digital mobile communication.)

wavelet transform of a signal,it is important and useful code to trans form frequency to time domain

本人编写的定点除法器,开发软件为XILINX的ISE6.2,通过PAR仿真.-I prepared for the sentinel division, the development of software for the ISE6.2 Xilinx, PAR through simulation.

MIG IP控制DDR3读写测试，于MIG IP核用户接口时序较复杂，这里给出扩展接口模块用于进一步简化接口时序。(MIG IP controls DDR3 reading and writing tests, and the time sequence of MIG IP kernel user interface is more complex.)

此功能是实现曼彻斯特编码的Verilog代码，经过在xilinx sp6上实际运行证实可行。(This function is to achieve the Manchester code Verilog code, through the Xilinx SP6 actual operation proved.)

verilog 比较基础的教程 呵呵 新手学习学习啊 大家有资料工乡-basis of comparison of the tutorial Verilog Ha ha ah novice learn Rural U.S. Data Works