高级加密标准AES的FPGA实现，支持128，256密钥长度格式

vhdl的基础性的介绍，对初学者大有用处-vhdl basic introduction

68013与FPGA的通信，包含了固件程序与verilog程序(68013 and FPGA communication, including firmware and verilog program)

ALTERA官方板子DE2官方代码，芯片是EP2C35F672C6N(ALTERA official board DE2 official code, the chip is EP2C35F672C6N)

用Verilog编写ad_9866的相应程序，在FPGA上实现相应功能(The corresponding program of ad_9866 is written with Verilog, and the corresponding functions are realized on the FPGA.)

FPGA实现四位数与四位数乘法，有仿真波形，合理利用FPGA资源(Four-digit and four-digit multiplication is realized by using FPGA. It has simulation waveform and makes rational use of the resources of the FPGA.)

PPM编码器的测试文件，可以测试PPM编码是否正确(PPM encoder test file, you can test whether the correct PPM encoding)

STOPWATCH FPGA SEVEN SEGMENT DISPLAY

用verilog编写在FLEX10K上实现的简易CPU-used in the preparation of Verilog FLEX10K achieve simple CPU

这些代码为 对于基本的FPGA使用模块beep进行了例化 在工程 系统级建模时只需要直接调用就好了(The code for the basic FPGA using the module beep instantiated only need to be called directly in the engineering system-level modeling like)

高精度直流信号源，DAC1220，20位分辨率，双极性输出(High-precision DC source, DAC1220,20 bit resolution, bipolar output)