数控系统中RS485串行通信协议的设计  

The Design of RS485 Serial Communication Protocol in CNC System

作　　者：蒋明柯[1] 皮佑国[1] 

机构地区：[1]华南理工大学自动化科学与工程学院

出　　处：《组合机床与自动化加工技术》2013年第5期23-26,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：广东省产学研结合项目(2009B090300269)

摘　　要：文章设计并实现了一种适用于ARM与DSP之间串行通信的通信协议,采用RS-485总线标准,硬件接口简便,通信可靠性高,并讨论了其软硬件的实现,可用于数控系统中。最后在ARM作为主控制器,DSP和FPGA作为从控制器的数控系统中验证了该协议在串行通信中的可靠性。This paper introduces a serial communication protocol suited for the communication between ARM and DSP, based on RS-485 buse standard. The interface of hardware is simple and the dependabili- ty of communication is high. The design of the software and hardware of the serial communication proto- col is discussed. This protocol can be applied to CNC system. At last, the reliability of the serial com- munication protocol is proved in CNC system, which suggests ARM as the master controller and uses DSP and FPGA as the slave controller.

关 键 词：串行通信 通信协议 ARM DSP RS485总线 数控系统 

分 类 号：TH16[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]