基于ARM Cortex M多任务技术实现  

Implementation of Multitask Technology Based on ARM Cortex M

作　　者：李慕菡 LI Muhan(Shaanxi Radio and Television University,Xi’an 710119,China)

机构地区：[1]陕西广播电视大学,陕西西安710119

出　　处：《现代信息科技》2021年第10期66-68,共3页Modern Information Technology

摘　　要：对基于ARM Cortex M内核单片机的多任务处理技术进行了研究,分析了多任务处理中ARM Cortex M的上下文切换的基本原理,从任务定义、PendSV触发、PendSV异常中断处理等方面着手,实现多任务之间的切换,给出了部分流程和程序。该设计已成功应用于ARM Cortex M处理系统中,结果表明该设计方案稳定可靠,在产品质量方面提供了更好的技术保证。This paper studies the multitask processing technology based on ARM Cortex M kernel single-chip microcomputer,analyzes the basic principle of context switching of ARM Cortex M in multitask processing,starts with task definition,PendSV trigger,PendSV exception interrupt handling and other aspects to realize the switching among multiple tasks,and gives some processes and procedures.The design has been successfully applied in ARM Cortex M processing system.The results show that the design scheme is stable and reliable,and provides a better technical guarantee in product quality.

关 键 词：多任务 上下文切换 ARM Cortex M PendSV 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论]