4锁，移位，可以设置和更改您的密码。

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)

System Generator

FPGA测试程序，仅供测试硬件是否能够运行，主要功能是点亮运行指示灯(The main function of the test program of FPGA is to light the running indicator.)

Arbiter code for simulation purpose

Verilog 实验代码。。。经典的，里面都是完整的项目文件。 ISE环境。(Verilog test code. . . Classic, which is a complete project file. ISE environment.)

Verilog 编写的网卡DM9000A的IP核，altera公司寄的DE2系统中的源程序核-Verilog prepared DM9000A the IP core network card, altera company sent DE2 System source of nuclear

本代码实现了输出移位寄存器功能，初学者可以借鉴学习-This code implements the output shift register functions, beginners can learn to learn

自己编的VHDL的波形发生器 做信号的可以-BOXING

FPGA开发超声波测距，可改写工业探伤或倒车测距等系统，quartus2下选择EP2C5Q208C8（CycloneⅡ） 支持目前淘宝上能买到的所有4-5针超声波模块 应用cycloneⅡ自带除法模块 开发板为有光技术YG2.1 生成电路规模较小 ！！注意：移植程序仅需重新约束数码管和超声波模块的针脚 (Ultrasonic Ranging FPGA development, industrial inspection or reverse rewritable ranging systems, EP2C5Q208C8 (CycloneⅡ) under quartus2 4-5 needle ultrasonic module supports all currently scouring the treasure can buy Applications cycloneⅡ own division module Development board bright technical YG2.1 Small scale generating circuit ! ! Note: The migration program only re-constraint digital and ultrasonic modules Pin)

（1）MTI （2）用FFT实现MTD （3）用FIR滤波器实现MTD ((1) MTI (2) using FFT realization MTD (3) with the FIR filter implementation MTD)