VHDL CODE FOR SQUARE WAVE GENERATOR

利用VHDL语言编写的一个crc功能模块，可下载到FPGA实现功能-use VHDL to prepare a crc function of the module, which can be downloaded to the FPGA functions

对ad0809的控制代码( ad0809control)

BCD to 7 segments display decoder

4位电子密码锁，带键盘扫描、按键防抖动、LCD驱动编译码-four electronic password lock with a keyboard scan button shake, LCD driver encryption

说明：  学习VHDL可以用得上，有很多实例，可以对照着自己写一些东西(VHDL can be useful to learn, there are many examples, can be done to write something)

在SOPC下制作自定义部件（PWM发生器）的源程序，包括硬件描述HDL文件和驱动程序文件-Produced in the SOPC custom component (PWM generator) of the source, including hardware description HDL files and driver files

适用于NIOS II的1024点FFT C算法( 1024-point FFT C algorithm for NIOS II)

按键可调占空比的PWM波产生程序。语言：VHDL(Button adjustable duty cycle of the PWM wave generator. Language: VHDL)