VHDL实现ALU的源代码，并且提供了一个详细的testbench！

用verilog HDL编写的SPI控制器，从国外网站上找到的。-SPI (Serial Peripheral Interface) is serial, synchronous, full duplex communication protocol. It is widely used as a board-level interface between different devices such as microcontrollers, DACs, ADCs and others.

ALTERA　NIOS处理器实验，编程环境是QUARTUS，在NIOS SHELL下编译实现功能。实验USB接口-Altera NIOS processor experiments, programming environment is QUARTUS in NIOS SHELL compiler functionality. Experimental USB interface

通过UART从PC主机读取图片数据，并完成图片在VGA显示器上的显示-through UART from the host PC to read image data, and complete picture of the VGA display on the show

说明：  学习使用quartus modelsim(learn to uee quartus modelsim)

通过verilog语言实现各种基本信号的调制解调过程，包括2psk,qpsk,ppm(Realize the modulation and demodulation process of various basic signals through verilog language, including 2psk, qpsk, ppm)

quartus 中，自己写的tcl，分配io的例子。-Quartus in their own writing tcl, distribution io example.

verilog分频器～时钟为50hmz，波特率采用9600bps～-Verilog clock divider ~ 50hmz, using baud rate 9600bps ~

这个是永磁无刷直流电机的本体结构和控制电路的联合仿真，既可以设计电机的结构，又可以搭电机的控制系统。(This is the body structure of the permanent magnet brushless DC motor and control circuit co-simulation, both the structure of the motor can be designed, they can take control of the motor system.)

用VHDL实现视频控制程序,实现对图像的采集和压缩,-Using VHDL realize video control procedures, to achieve image acquisition and compression,

此代码是SPI接口的Master的Verilog源代码，经上板测试是没有问题的，请大家放心使用 (This code SPI Interface Master of Verilog source code, there is no problem on board test, please rest assured to use)