摘要： 介绍将CAN总线接口与RS232总线接口相互转换的设计方法和2种总线电平转换关系，实现CAN总线与各模块的接口设计，制定了相应的软硬件设计方案，并给出软件设计流程图以及部分硬件设计原理图。为CAN总线与RS232总线互联提供了一种方法，对CAN总线与RS232总线接口设备的互联和广泛应用的实现具有重要意义。

关键词: CAN总线, RS-232总线, 串行通信

Abstract: This paper introduces one design method of the CAN bus interface and the RS232 bus interface interconversion, emphasizes two kind of bus level transformation relations, realizes the CAN bus and various modules connection design, formulates the design proposal of corresponding software and hardware, and gives the flow chart of software design as well as the partial schematic diagram of hardware design. It provides one method for the CAN bus and the RS232 bus interconnection, has the vital significance to widespread application realization of the CAN bus and the RS232 bus interface equipment interconnection.

Key words: CAN bus, RS-232 bus, serial communication

中图分类号: 

• TP391