这是郭天祥51单片机与max485通信模块通信的程序，里面包含了各种突发情况的处理比如奇偶检验码的设置-This is GuoTianXiang 51 SCM and max485 communication module communication program, there were all kinds of emergency situations such as parity inspection yards Settings

这是郭天祥51单片机与max485通信模块通信的程序，里面包含了各种突发情况的处理比如奇偶检验码的设置-This is GuoTianXiang 51 SCM and max485 communication module communication program, there were all kinds of emergency situations such as parity inspection yards Settings

实现对十字路口红绿灯的控制，含有外部中断，应对十字路口的突发情况。-To achieve the control of traffic lights at the crossroads, containing external interrupt, to deal with the intersection of the unexpected situation.

交通灯的中断正常使用以及出现重要突发情况的人工操作-Traffic lights interrupt normal use and the emergence of an important emergency situation of manual operation