基于OMAP架构的无线终端双核通信设计及优化

Design and Optimization of Dual-core Communication of Wireless Terminal Based on OMAP Architecture

针对OMAP架构处理器中Linux操作系统无法满足强实时性应用的技术难题,提出了一种通用可靠、实时性强的双核通信设计方法。通过事件同步和自陷中断的方式提高了处理器的响应速度,通过乒乓缓冲设计实现了数据的零拷贝,显著提高了操作系统的实时响应速度和稳定度,为双核通信机制提供了一种标准化的设计方法,对于低成本、高性能无线终端的研制,具有积极的参考意义。

Aiming at the technical problem that the Linux operaton system in the OMAP architecture processor cannot meet the strong real-time application, a universal, reliable and real-time dual-core communication design method is proposed. The response speed of the processor is improved by event synchronization and self-trapping interrupt. The zero copy of the data is realized by ping-pong buffer design, which significantly improves the real-time response speed and stability of the operation system, and provides a standardized design method for the dual-core communication mechanism. It has a positive reference significance for the development of low-cost and high-performance wireless terminals.