MCU平台的嵌入式系统软件设计研究

嵌入式系统的运行需要可靠性和实时性的保证,因此良好的可靠性和实时性是嵌入式系统软件设计的重要标准。同时为了使软件系统的鲁棒性更强,嵌入式系统的设计需要一个非常好的软件架构。这里介绍了一种基于MCU平台的嵌入式系统软件架构方法。在这个方法中,事件驱动机制的引入满足了对软件架构的要求,主程序中不仅采用了优先调度机制,同时也加入了软件抗干扰措施,这些都使系统的实时性和可靠性得到了明显的提高。设计实验比较由该方法得到的软件架构与原始软件架构的实时性,得出由该方法优化后的软件架构确实具有更好的性能。

Design and Research of Embedded System Software Based on MCU Platform

The operation of embedded system needs the guarantee of reliability and real-time performance, so the fairly good reliability and real-time performance are the important standards in embedded system design. In order to make software system more robust, the good software architecture is required in the design of embedded system. This paper introduces a kind of design method of embedded system software structure based on MCU platform. In this method, the introduction of event-driven mechanism can meet the demand of software architecture. The main program not only adopts the priority scheduling mechanism, but also addes the software anti-interference measures, which all improve the real-time performance and reliability of software system. The real-time performance is verified through designed experiment to compare the before and after embedded system software, which can conclude that the optimized embedded system software has better performance.