实现了单片机间的多种通讯模式，包括QQ模式、定时模式、指定地址模式以及单个字符的模式，并在8279的支持下显示在数码管上-achieved between the various MCU mode of communication, including QQ model, the regular model, designated address patterns of individual character models, and in 8279 with the support of the digital display tube