本次设计采用硬件和软件相结合的方法,以单片机为核心,从圈脉冲信号的产生到营业信息的打印都做了详细的介绍,并对MAX813L看门狗、复位电路、行车里程检测电路、掉电存储电路、IC卡读写电路、分屏显示电路以及操作面板进行了详细的设计。-The design of the hardware and software combination, using single chip as the core, from the ring pulse signal is generated to the bus