【摘要】 讲解如何利用ModBus通信协议,实现触摸屏与单片机的通信。详细介绍了单片机通信子程序、单片机应答程序、CRC校验程序的编写方法,给出了各程序的流程图。更多还原

【Abstract】 This paper discusses how to realize the communication between SCM and touch_screen by ModBus communication protocol.SCM communication subprogram,SCM response program and CRC program are described,and their program flow diagrams are given.更多还原