说明：  FM12864F型点阵式液晶资料，介绍了液晶模块与单片机的接口电路图，液晶显示的操作时序，液晶显示控制步骤，很实用。
(FM12864F type dot matrix liquid crystal information on the LCD module and microcontroller interface circuit, liquid crystal display timing operation, LCD display control step, it is practical.)