verilog编写的具有奇偶校验uart发送模块

Altera DE1平台的数字密码锁设计，可以驱动VGA显示(Altera DE1 platform digital password lock design, can drive VGA display)

说明：  本代码是控制DS1302的VHDL代码，浅显易懂，方便修改，注意看data sheet，保证时钟和各个延迟满足要求即可(This code is to control the DS1302' s VHDL code, easy to understand, easy changes, note the data sheet, ensure the clock and can meet the requirements of the various delays)

实现fpga上交通灯的设计，可以在开发板上实现红绿灯(Design of traffic lights on FPGA)

i2c core : i2c master top

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.)

9针的rs232与fpga之间的串口通信源程序(Rs232 9 pin serial communication with the source between fpga)

SPI的Verilog实现(非常的全面和详细，还带有SPI算法的注解),此代码是SPI接口的Master和slaver 的Verilog源代码

利用Cadence Allegro PCB SI进行SI仿真分析(Performed using the Cadence Allegro PCB SI SI simulation analysis)

FPGA控制外边led，并实现跑马灯等多种效果，用户可以自行控制(FPGA control outside led)

使用nios2点亮一个led灯，使用软件quartus13.0，开发板de2-115(nios2 led quartus13.0 de2-115)