USB2.0的VHDL描述，很经典了，欢迎大家下载

VDHL的简单DEMO演示，有利于初学者学习使用(VDHL simple demo DEMO will help beginners learn to use)

modelsim的一个非常好的教程，有程序源码，PPT，word教程-ModelSim

基于sopc ep2c5开发板的rs232例程-On sopc ep2c5 development board rs232 routines

简单电子玩具的感知模块程序设计,通过外部输入信号改变内部信号.从而改变玩具的状态-simple electronic toys perception module programming, through external input signal a change in the internal signal. In order to change the state of toys

利用两个加法器和两个乘法器一起并行处理来实现

主要介绍，I2C总线主设备发送数据给从设备，代码实现是用Verilog语言实现的，对硬件设计者有很大好处(Introduces, I2C bus master to send data to the slave device, code is implemented in Verilog language, the hardware designer of great benefit)

FPGA SPI 主要模块全部涵盖 时序解释 与DSP通信(FPGA SPI Timing interpretation covering all main modules communicate with the DSP)

nrf24l01发送代码，verilog实现NRF24L01通信(NRF24L01 send code, Verilog to achieve NRF24L01 communication)

对数计算源程序，能够在FPGA中计算某数的对数(Determined on the basis of the source, calculated in the FPGA to a certain number of log)

FPGA实现FFT算法的源代码及工程文件，此工程为ISE工程项目。有详细的说明，可以运行。(FPGA Implementation of FFT algorithm source code and project files, this works for the ISE project. There are detailed instructions, you can run.)