摘要： 简介了车流量检测系统,设计了ARM与DSP通信的方案。该方案充分利用了DSP的HPI接口功能实现了主机ARM实时读/写DSP片内任意存储单元的内容,给出了硬件连接图和软件代码。该方案已应用于车流量实时检测系统中,经验证是有效且实用的方法。

关键词: ARM处理器, 数字信号处理器, 主机接口

Abstract: This paper introduces the traffic flowing detection system and provides a solution to deal with the communication between ARM &DSP. The host computer ARM can access the entire on-chip RAM of the DSP 5402 by DSP’s HPI interface. This method has been used in trafficflowing detection real-time system and its validity and utility have been proved. The detailed software and hardware design methods are presented.

中图分类号: 

• TP274.4