异步FIFO的设计 包括testbench 已调试成功

实现基于NIOS的 EP3C16与加速度传感器NMA7455的IIC基本通信(Realization of based on NIOS EP3C16 and acceleration sensor NMA7455 IIC of basic communication )

基于FPGA设计的电子密码锁是一个小型的数字系统，与普通机械锁相比，具有许多独特的优点：保密性好，防盗性强，可以不用钥匙，记住密码即可开锁等。(FPGA-based design of the electronic code lock is a small digital system. It has many unique advantages：good privacy and security , it do not need the key but remember password to unlock, and so on while it compare to ordinary mechanical locks.)

说明：  da的代码,在VHDL的编译环境下的开发。是一种集约的形式。(DA convert)

FPGA板上的锁存器PLL控制代码（verilog代码）(FPGA board latch the PLL control code (Verilog code))

Spartan 3 Digilent Demo:This demo drives the perphrials on the Spartan 3 board. This drives a simple pattern to the VGA port, connects the switches to the LEDs, buttons to each anode of the seven segment decoder. The seven segment decoder has a simple counter running on it, and when SW0 is in the up position the seven segment decoder will display scan codes from the PS2 port. This demo how ever does not drive the RS-232 port or the memory. This is a simple design done entirely VHDL not microblaze.

基于FPGA的7x7块交织器设计，程序分交织、解交织两部分，并在QUARTUS II 9.0 下仿真通过，内附模块详细端口说明及仿真分析文件。

给予QPSK调制的OFDM例程，简单明了的表述了OFDM的通信原理(Given OFDM QPSK modulation routine, simple expressions of OFDM communication theory)

Firmware for autotuning Sensor

采用倍频及1/3、1/12倍频绘制的路面不平度频谱图（自编）(Using octave and 1/3, 1/12 octave drawn road roughness spectrum (self))

用verilog 语言编译16QAM调制(a great complied code of 16QAM modulation for OFDM)