A NiosII available LCD12864 IPcore, with examples

clock for spartan 3 evaluatoin board

uvm apb verification env

AHB to Wishbone memory interface VHDL source code

VHDL实现的超前进位加法器-the VHDL-ahead Adder

Matlab code to simulation the wireless channel type.This is the most common case called Rayleigh channel.And in the frequency selective channel.

 交通灯控制器控制红（r）、绿（g）、黄（y）三种不同颜色的交通灯，这三种不同颜色灯的亮、灭分别由三个定时器（timer1、timer2、timer3）控制；  当某个定时器工作时，它所控制的交通灯亮，直到设定的定时时间到（该定时器状态由’0’变’1’），交通灯跳转到另一种状态；  clk是脉冲控制端（图中未标出）；reset是异步复位端，复位状态为红色交通灯亮；  输出端r、g、y分别表示三种颜色交通灯的亮、灭状态。 ( traffic light controller control red (R), green (g), yellow (y) three different colors of traffic lights, three different colors of bright lights, off by three timer (Timer1, Timer2, Timer3 ) control  When a timer work, it controls the traffic lights, until the set timing (the timer status ' 0 ' for ' 1' ), traffic lights Jump to another state  clk is the pulse control terminal (not shown) reset is asynchronous reset terminal, the reset state for the red traffic lights  output terminal r, g, y represent the three colors of traffic lights bright, the off state.)

 音频信号先经过由运放和电阻组成的50Ohm阻抗匹配电路以满足输入阻抗50 Ohm的系统要求，这样方便信号功率的计算。为了保证所处理的信号被不失真的采样，信号还要通过截止频率为10Khz的抗混叠低通滤波器。最后为了AD能正确的采样，信号还要通过信号抬高电路。 经过12位A/D转换芯片MAX144转换后的数字信号经由基于FPGA的NIOSII处理器进行FFT变换和处理，分析各个频率点的功率值，并将这些值显示在LCD上。 该源代码就是fft变换的源代码

自己编写的一个verilog HDL小程序，实现基本的task调用function的功能，对初学者有用。在xilinx的ISE仿真调试通过(I have written a verilog HDL small procedures, to achieve the basic function of the task to call the function, useful for beginners. In Xilinx s ISE simulation debugging through)

自己今年的毕业设计DDS波形发生器,有正弦波,方波,三角波,锯齿波.-Their own design this year

用Bresenham算法在FPGA上实现小数分频器，verilog编写，计算机图形法-Bresenham algorithm used in the FPGA to achieve a small number of crossovers, verilog preparation, computer graphics method