EDA常用计数函数VHDL程序设计，减法计数器：可预置数：

Oregano Systems 8051 ip核-Oregano Systems 8051 ip core

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.)

VHDL Checkers Implementation by Ibrahim Elbouchikhi Amir Nader-Tehrani - VHDL Checkers Implementation by Ibrahim Elbouchikhi Amir Nader-Tehrani

用来实现IRIG_B码的解码程序，在XILINX ISE上运行过没有问题，(Used to achieve IRIG_B code decoding process, in XILINX ISE run-off is no problem,)

The Hilbert Transform is an important component in communication systems, e.g. for single sideband modulation/demodulation, amplitude and phase detection, etc. It can be formulated as filtering operation which makes it possible to approximate the Hilbert Transform with a digital filter. Due to the non-causal and infinite impulse response of that filter, it is not that easy to get a good approximation with low hardware resource usage. Therefore, different filters with different complexities have been implemented. The detailed discussion can be found in "Digital Hilbert Transformers or FPGA-based Phase-Locked Loops" (http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4629940). The design is fully pipelined for maximum throughput.

说明：  介绍如何使用 FPGA 内部的 ROM 以及程序对该 ROM 的数据读操作。(This paper introduces how to use the ROM inside the FPGA and how to read the data of the ROM by the program.)

FPGA中嵌入8051的核 并且实现控制128*64的液晶显示-FPGA embedded in 8051 and to achieve control of the nuclear 128* 64 LCD

this code to input 8 different data and make them out sequentialy

乐曲演奏电路，能演奏歌曲，同时在数码管上显示演奏的乐曲音符的数字。-Music concert circuit, can play songs at the same time in the digital tube displays the number of notes played music.

verilog 写的 “梁祝”乐曲演奏电路-verilog wrote " The Butterfly Lovers" music concert circuit