keil c51开发的8279和51单片机通用键盘控制和Led显示及uart通信程序。-Keil decoder developed by 8279 and 51 general-purpose keyboard control and Led Display and uar t Communication Program.

c51控制的交通灯程序，由8279驱动数码管显示。-c51-controlled traffic lights program, driven by the 8279 digital display.

C51的8279 LED操作，键盘处理程序-C51-8279 LED operation, the keyboard handler