自己设计的矩阵键盘扫描程序，实现5X4键盘扫描，带有去抖和中断功能。-Their own design matrix keyboard scanner, to achieve 5X4 keypad scanning, to shaking and interrupt functions with.

keypad scanner vhdl code

4X4键盘的扫描程序和键盘的消抖程序，使用VHDL语言编写的程序-The 4X4 keypad scanner and keyboard eliminate buffeting program VHDL language program