一种SSI转RS485转换器的设计

A Design of SSI-RS485 Converter

设计了一种基于单片机ATtiny2313的协议转换器.转换器的主要任务是将系统中多圈绝对式旋转编码器SSI(同步串行接口)协议转换为车载控制器的RS485协议.针对复杂的车载系统,给出了若干转换器的抗干扰措施.实践证明:所设计的转换器结构简单、运行可靠、抗干扰能力强,能实现SSI接口的传输速度快、连线简单、抗干扰能力强的优点,便于与车载控制系统的集成.

A converter based on singlechip ATtiny2313 is designed.This converter can convert SSI（Synchronous Serial Interface）,which is a interface of loopy absolute rotary encoder,to RS-485 interface,which is a interface of a vehicle controller.For complicated environment of vehicle system,several anti-jamming methods have been presented in this paper.The practice presents the designed converter has a simple structure,reliable function,and strong anti-jamming.And it can realize the virtue of SSI interface-fast transmission,easy connection,strong anti-jamming and it can be integrated into the vehicle control system.