mcu与cpld之间spi接口程序，mcu为master，cpld用verilog写成slave模块,mcu with spi interface program between the CPLD, mcu for the master, cpld written using Verilog slave module

三线spi接口，用verilog实现，作为一个模块，可以接收并行数据，然后串行发送-Three Line spi interface, using Verilog implementation, as a module, can receive parallel data, and then send the serial

基于Verilog开发的PS2的接口设计，可以模拟PS2的鼠标和键盘的接口！-Verilog-based development of the PS2 interface design, can simulate the PS2 mouse and keyboard interface!

用VERILOG实现秒表的开发设计，(1)熟悉按键扫描、按键防抖和数码管驱动接口电路原理；(2)掌握按键扫描、按键防抖和数码管驱动接口电路设计开发；(3)掌握状态机实际应用设计。-To achieve the development of a stopwatch with VERILOG Design, (1) be familiar with key scanning, image stabilization and digital control key driver interface c