ps2接口源程序。标准的键盘和鼠标接口，在Xilinx SpartanII XC2S200 实验板上通过验证...

URISC 处理器由数据单元和控制单元组成。数据单元中包含保存运算数据和运算结果的数据寄存器，也包括用来完成数据运算的组合逻辑电路单元。控制单元用来产生控制信号序列，以决定何时进行何种数据运算。控制单元要从数据单元得到条件信号，以决定继续进行那些数据运算，数据单元要产生输出信号，数据运算状态等有用信息。-URISC processor by the data unit and control unit. Data unit included in the preservation of data and computing the results of computing the data register, but also data used to complete a combination of computing logic circuit unit. Control unit used to generate the control signal sequence, to determine when and what data computing. Control unit from the data unit received condition signal to determine the continuation of the data computation, data unit to produce output signals, data, such as computing the state of useful information.

STT-MRAM磁性存储器全部verilog代码和仿真验证代码，包括行为模块，读写模块和控制模块，已经经过验证完全正确(STT-MRAM magnetic memory all the code and simulation code, including behavior module, reader module and the control module, has been proven entirely correct)

在EDA实验课上面，自己编写的NCO程序，可以产生出比较真实的正弦波、三角波以及锯齿波，用VHDL程序编写，有modelsim仿真textbench程序(On EDA experiment, oneself write the NCO program, can produce more real sine wave, triangular wave and sawtooth wave with VHDL programming, have the modelsim simulation textbench program )

xc3s400芯片详细的英文资料，xc3s400的FPGA开发板使用者必看-chip xc3s400 detailed information in English, xc3s400 the FPGA development board users see

主要编写了一组二进制数据通过根升余弦滤波器后的波形，但并没有使用ISE内部的FIR滤波器内核，该程序相当于编写了一个根升余弦滤波器。(Mainly prepared a set of binary data through the root raised cosine filter waveform after, but did not use the ISE internal FIR filter kernel, the program is equivalent to the preparation of a root raised cosine filter.)

说明：  FPGA与PC端实现串口数据的收发，先从PC端接收数据，然后发回给电脑，可通过串口助手验证。(The serial port data is sent and received between the FPGA and the PC. First, the data is received from the PC, and then sent back to the computer. It can be verified by the serial port assistant.)

数字通信系统中, 基带信号的频谱一般较宽, 因此 传递前需对信号进行成形处理, 以改善其频谱特性,使 得在消除码间干扰与达到最佳检测接收的前提下,提高信道的频带利用率。目前,数字系统中常使用的波形成形滤波器有平方根升余弦滤波器、 高斯滤波器等。设计方法有卷积法或查表法, 其中: 卷积法的实现,需要消耗大量的乘法器与加法器,以构成具有一定延时的流水线结构。为降低硬件消耗,文献提出了一种分(FPGA Implementation of Square Root Raised Cosine Pulse Shaping Filter)

说明：  HDMI协议的Verilog实现，通过对RGB三个通道分别进行TMDS编码完成，纯原创代码(Verilog implementation of HDMI protocol, through TMDS coding of RGB three channels, pure original code)

xlinx官方的iic和spi接口的描述-IIC and xlinx official description of spi interface