VHDL tutorial for self studying

GPIO LED 测试工具源代码，可以用来检测开发的主板GPIO LED设备是否工作正常(GPIO LED test tool source code, can be used to detect the development of motherboard GPIO LED device is working properly)

说明：  matlab代码，利用Farrow结构设计分数延时滤波器，滤波器阶数和个数可分别进行设置，利用最大最小准则近似。(Matlab code, using Farrow structure design fractional delay filter, filter order and number can be set separately, using the maximum and minimum criterion approximation.)

说明：  matlab代码，利用Farrow结构设计分数延时滤波器，滤波器阶数和个数可分别进行设置，利用最大最小准则近似(Matlab code, using Farrow structure design fractional delay filter, filter order and number can be set separately, using the maximum and minimum criterion approximation.)

自己编写的经过QuartusII验证的Verilog HDL程序，可以实现常见功能-After QuartusII their written procedures for verification of the Verilog HDL, can achieve common features

VHDL programming by example

用窗函数法设计一个线性相位FIR数字低通滤波器，用理想低通滤波器作为逼近滤波器，通带截止频率为0.2 ，阻带截止频率为0.4 ，阻带衰减不小于-40dB。(Window function method to design a linear phase FIR digital low-pass filter, as an ideal low-pass filter for approximation filter passband cutoff frequency of 0.2 stopband cutoff frequency of 0.4, the stop-band attenuation of less than-40dB.)

资源描述针对于Virtex5FPGA的DDR2读写测试的完整工程,已测试可以使用，可以根据自己的ddr2配置自行更改。。。。

DA 实现用于 FIR 实现筛选器假定系数固定的那冲激响应和这种行为使得它可能使用的基于 ROM 的下尿路症状

驱动8*8点阵块显示汉字，可以自己根据要显示的内容随意更改，已通过验证。(Blocks of 8* 8 dot matrix drive display Chinese characters, you can display the content according to their random changes, has been verified.)

用于FPGA实现单总线测温电阻DS18b20时序。在xilinx spartan 3中试过。-failed to translate