介绍在一个有实时性控制要求的双处理器嵌入式控制系统中,基于DMA 实现双处理器间高速流畅通讯的设计方案。重点阐述DMA 传输的实现过程,数据结构以及linux 设备驱动程序设计。关键词:DMA;双处理器间通讯;Linux 设备驱动程序Abstract:In this article ,a design scheme of implementation of communicationbetween dual processors based on PXA270 DMA in a real time embedded control systemis proposed.Highlighted the process of DMA transfer ,the data structure and linuxdevice driver design.Key words:DMA;communication between dual processors;linux device driver
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