基于MCU的Windows CE软关机方法

Method of Windows CE Soft-Shutdown Based on MCU

由于嵌入式系统的应用领域、硬件设计、Bootloader等具有多样性,因此Windows CE在发布时本身并不支持软关机的功能。随着嵌入式系统日益广泛的应用,安全保存数据和软关机的问题变得越来越重要。为此,提出一种基于单片机的软硬件结合的软关机方法,并介绍关键技术的实现。通过增加掉电检测与保护电路,该方法可在多种情况下实现安全关机,具有一定的通用性和扩展性。

Because of various application fields, hardware design and Bootloader of embedded system, the function of soft-shutdown is not supported by Windows CE when it is published. With increasingly extensive application of embedded system, the problem of safely saving data and soft-shutdown becomes more and more important. This paper proposes a kind of soft-shutdown method combining software and hardware based on MCU, and introduces key technologies to realize. Safe shutdown can be realized by the method on various conditions with power down detection and protection circuits. The method has good generality and expansibility.