verilog_ad0809 cpld control

本例为电子琴VHDL程序原代码,电子琴,可实现基本功能-In this case the procedures for organ VHDL source code, organ, can realize the basic functions of

VHDL语言实现的程序，功能如下：在键盘上输入什么，在相应的LCD上显示你输入的字符-VHDL language procedures, functions as follows: What is the keyboard input, in the corresponding LCD display the characters you type

基于FPGA的2FSK调制解调，里面有详细的工程说明，对于学习ISE软件和通信原理的知识很有帮助(FPGA based 2FSK modulation and demodulation, which contains detailed engineering instructions, for learning ISE software and communication principles of knowledge is very helpful.)

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.)

用VHDL语言写的代码 包括全局的输入时钟缓冲器来去抖动，块RAM模块65536*10，读数据，写数据，空标志信号的产生，满标志信号的产生，读写使能信号的产生七个模块！对各位有帮助噢！

说明：  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VHDL语言在CPLD上实现串行通信-using VHDL on the CPLD Serial Communication

说明：  基于FPGA 黑金ALINX 515的 ADDA采样模块源码（需调试）(ADDA Sampling Module Source Code Based on FPGA Heijin ALINX 515)

说明：  直接数字式频率合成器DDS设计、Verilog。 产生的信号可以是正弦波或方波、三角波、锯齿波等，自选。 采用DDS技术，将所需生成的波形写入ROM中，按照相位累加原理合成任意波形。 此方案得到的波形稳定，精度高，产生波形频率范围大，容易产生高频。 本实验在设计的模块中，包含以下功能： （1）通过 freq 信号输入需要的频率的值； （2）通过 wave_sel 信号选择所需的波形； （3）通过 amp_adj 信号选择波形放大的倍数。(DDS design of direct digital frequency synthesizer, Verilog. The generated signal can be sinusoidal or square wave, triangular wave, sawtooth wave and so on, optional. By using DDS technology, the required waveforms are written into ROM, and arbitrary waveforms are synthesized according to the principle of phase accumulation. The waveform obtained by this scheme is stable, accurate and easy to generate high frequency waveform. This experiment includes the following functions in the designed module: (1) Input the required frequency value through freq signal; (2) Choosing the required waveform by wave_sel signal; (3) Select the multiplier of waveform amplification by amp_adj signal.)

基于单片机和FPGA实现DPSK调制解调的功能和分类比较。(MCU and FPGA implementation based on DPSK modulation and demodulation functions and classification comparison.)