一个用VerilogHDL语言编写的模6的二进制计数器

verilog实现的简易通用型CPI接口-verilog easy to achieve CPI general-purpose interface

利用verlilog hdl语言编程，完成了8051内核，非常值得学习硬件描述语言的人看看！-Verlilog hdl programming language to use to complete the 8051 core, very much worth learning hardware description language of the people to see!

　　本文对数字基带信号脉冲成型滤波的应用、原理及实现进行了研究。首先介绍了数字成型滤波的应用意义并分析了模拟和数字两种硬件实现方法，接着介绍了成形滤波器设计所需要MATLAB软件，以及利用ISE system generator在FPGA上进行滤波器实现的优势。文中给出了成形滤波函数的数学模型，讨论了几种常用成形滤波函数的传输特性以及对传输系统信号误码率的影响。然后介绍了本次设计中使用到的数字成形滤波器设计的几种FIR滤波器结构。把各种设计方案进行仿真，比较仿真结果，最后根据实际应用的情况并结合设计仿真中出现的问题进行分析，得出各种设计结构的优缺点以及适合应用的场合。(In this paper, the application of the principles and implementation of digital baseband signal pulse shaping filter is studied. First introduced the significance of digital shaping filter application and analysis of both analog and digital hardware implementation, then introduces the shaping filter design requires MATLAB software, and the use of ISE system generator on the FPGA to achieve the advantages of the filter. This paper presents a mathematical model of shaping filter function, the transmission characteristics discussed several common shaping filter functions and the impact on the error rate of the signal transmission system. Then introduced the use of this design to several digital shaping filter design FIR filter structure. The various design simulation, compare the simulation results, and finally according to the actual application and combine design simulation to analyze problems, come and where appropriate to the application advantages and disadvantages of various design s)

Meyers wavelet. DWT VHDL.

BT656转RGB的算法实现代码，使用VORILOG语言编写(BT656-->RGB, verilog)

卫星信道模拟器能够模拟卫星信道的传播特性，用于设备的通信调试，节 约研发成本。目前，很多卫星信道模拟器在参数设置上存在问题：有的参数难 以调节；有的采用上位机进行参数设置，通过上位机设置参数需要连接电脑， 适应性差。针对上述问题提出了一种基于FPGA可触控卫星信道模拟器，FPGA 作为算法实现和控制单元，通过控制触摸屏方便快捷的实现参数设置。(Literature of Satellite Channel Simulation Based on FPGA)

用于modelsim仿真的xilinxfpga平台IP库，以ise 13.x为基础制作，在modelsim10下验证通过。(xilinx IP core library for modelsim simulate, based on ise 13.x, verified in modelsim10.)

说明：  matlab bpsk with rayleigh performance expirement

利用VHDL语言编写的一个16分频器，另外可以在程序中修改为任意2N的分频器-use VHDL prepared a 16 dividers, Also in the revision process to be arbitrary 2 N Divider

一个具有“百分秒，秒，分”计时功能的数字跑表，可以实现一个小时以内的精确至百分之一秒的计时。 数字跑表的显示读者可以通过编写数码管显示程序来实现，本训练只给出数字跑表的实现过程。 读者还可以通过增加小时的计时功能，实现完整的跑表功能。(A " percentage of seconds, seconds, minutes," digital stopwatch timer can be achieved within an hour of precision to the hundredth of a second time. Digital stopwatch readers can display the digital display through the preparation of procedures to achieve, given the training is only the realization of the process of digital stopwatch. Readers can also function to increase hours of time to achieve full stopwatch function.)