基于CAN总线的双DSP通信方案设计与实现

Design and Implement of Double DSP Communication Based on CAN Bus Interface

中文关键词:  DSP通信  CAN总线  双缓冲

英文关键词:DSP communication  CAN bus  double buffer

中文摘要:

      针对目前逐渐增多的双DSP系统中的通信问题，分析比较了各种DSP通信方案以及将CAN总线用于DSP通信中的优势；介绍了DSP中CAN通信接口的硬件和软件设计及实现，重点阐述了CAN模块的相关寄存器设置，并且采用中断接收数据和双缓冲存取数据的方法；本方案已成功运用于某无人机飞行控制系统，系统运行良好。

英文摘要:

      In view of the problems on communication in double DSP systems,various communication methods are compared and advantages of CAN bus are also presented.The hardware and software of communication using CAN bus in DSP systems are introduced.The registers configuration of CAN is described in particular.Data are received by interrupt and stored by double buffer.The scheme is applied in an UAV flight control system which performs very well.