在单片机系统开发中,多任务系统容易出现调度阻塞。本文分析了产生任务阻塞的原因,提出了一种基于时序逻辑的多任务驱动策略,通过具体案例设计了常用外围模块的多任务驱动模板。实验结果表明,该多任务系统调度策略能够有效保证多任务系统运行流畅,有效解决了多任务阻塞问题,为基于单片机执行多任务系统开发提供了一个新思路。

In the development of single-chip microcomputer system,multi- task system is prone to task scheduling congestion.This paper analyzes the causes of task blocking,proposes a multi-task driving strategy based on temporal logic,and designs a multi-task driving template of common peripheral modules through specific cases.The experiment results show that the system scheduling strategy can effectively ensure the smooth operation of the system,effectively solve the blocking problem,and provide a new idea for the development of the multi-task system based on the microcontroller.