基于PIC18单片机的RS485/CAN智能转换器的设计  

Relization of RS 485 to CAN Interlligent Converter Based on PIC18 Single Chip

作　　者：张海忠[1] 邓先明[1] 袁启东[1] 

机构地区：[1]中国矿业大学信电学院,江苏徐州221008

出　　处：《现代电子技术》2007年第4期14-16,共3页Modern Electronics Technique

摘　　要：CAN总线因具有突出的可靠性、实时性、灵活性等优点而被广泛应用,而目前国内采用RS 485系统的还比较多。因此RS 485和CAN的转换器设计就具有现实意义。设计了一种基于PIC18单片机的RS 485/CAN智能转换器,并对其硬件电路设计和软件编写流程进行了详细的讨论。设计的转换器可实现RS 485和CAN的双向通信,可用于RS 485系统到CAN系统的升级。Owing to the advantage of outstanding reliability, real time and flexible,CAN bus is widely applied,But RS 485 system are used much more in country. So the design of a RS 485 to CAN converter become to reality. This paper present a kind of converter based on PIC18 chip. The hardware circuit and the software flow are given. It can realize the duplex communication between RS 485 and CAN,and,be applied to the upgrade from RS 485 system to CAN system.

关 键 词：RS 485 CAN总线 PIC18单片机 转化器 串行通信 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]