FPGA实现 LCD1602 显示 PS/2 键盘的键值,熟悉并掌握液晶 1602 显示屏的使用方法及PS/2键盘的接口标准，学习利用Verilog-HDL语言编写有限状态机实现较为复杂的设计与应用。-LCD1602 FPGA realizing that the PS/2 keyboard keys, familiar with and master the use of liquid crystal display 1602 method and PS/2 keyboard interfac