十六位按键功能的读写程序，包括汇编原代码，可烧录文件，熟悉按键检测功能的使用方法

是个汇编练习程序，用来显示键盘上按键的ASCII码和扫描码，是一个很好的练习汇编的参考程序，希望对初学汇编语言的同学有帮助吧-Practice is a compilation of procedures, the keyboard keys used to display the ASCII code and scan code of practice is a good reference for the compilation process, in the hope that stude

汇编程序的矩阵键盘识别程序，通过设置键盘的行与列，继而进行扫描，识别3x4共12个按键！-Assembler matrix keyboard recognition program, by setting the keyboard rows and columns, and then scanned to identify a total of 12 keys 3x4!

采用外部中断和延时消抖控制按键，能很好地避免按键误动作，实验效果很好-External interrupt and delay debounce control buttons, the button can well avoid malfunction, the experiment works well