基于SJA1000的CAN总线通讯模块的设计

Design of CAN bus communication module based on SJA1000

介绍了一种基于SJA1000的CAN总线通讯模块的硬件和软件设计.硬件部分主要由单片机和可编程的CAN通讯控制器SJA1000组成,软件设计包括SJA1000的初始化,数据的发送和接收三部分.目前该通讯卡已经成功的应用于CT机的命令通讯系统中,显著减少了系统的连线,简化了系统设计,具有较高的抗干扰能力.

This paper expounds the design of hardware and software of CAN controller communication module based on SJA1000. The part of hardware mainly consists of microcontroller and SJA1000 Stand-alone CAN controller. The design of software includes the initial of SJA1000, the sending of data and receiving. The communication card has successfully been applied in the command system of CT scanner, which greatly decreases the line of the system and simplifies the design. It has very high anti-jamming ability.