【摘要】 车流量检测雷达是智能交通系统中数据采集获取信息的一种重要工具,因此车流量检测雷达的数据传输量很大,而且要求实时性很强。在该课题组研究的车流量检测雷达中,采用ARM(Advanced RISC Machine)嵌入式芯片实现整个系统的接口工作,通过HPI口实现DSP与ARM的通信。嵌入式实时操作系统多任务实现的基础是系统对中断的处理,论文首先详细介绍了ARM的几种中断,并给出了基于ARM中断的整个系统的软件实现的流程及中断实现的部分代码。更多还原

【Abstract】 The vehicle-flux detection radar is an important tool for data-sampling in Intelligent Traffic System(ITS).From above it can be seen that the vehicle-flux detection radar has to transmit much data and has the strong real-time properties.In the vehicle-flux detection radar the interface can be realized by the embedded ARM device and the communication between DSP and ARM is done through HPI.The basis of embedded real-time operating system is the disposal of the interrupt for system.This paper presents first the interrupt mechanism of ARM and gives the ARM code of this system.更多还原