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