【摘要】 阐述基于Windows Mobile的嵌入式系统中系统软件层次的低功耗设计。在基于PXA270处理器的手机平台上具体实现了Windows Mobile的电源管理功能,即与PXA270处理器的低功耗模式相结合,实现了Suspend/Resume模型,以及设备驱动和应用程序中电源管理,最后对系统工作在典型电源状态的功耗数据做了测量。数据表明,与未采用电源管理的系统相比,电源管理模块能使系统更高效合理地使用电池电量,有效地降低系统运行过程中的功耗。更多还原

【Abstract】 Low power design of embedded systems based on Windows Mobile,which focuses on system software level is introduced.The Windows Mobile power management function is realized based on PXA270 cellphone platform,including implemention of Suspend/Resume mode with low power mode of PXA270,as well as power management of device drivers and applications,the datas of typical system power states are measured.The datas show that compared with the system without power management module,it can make use of battery power more efficient and reasonable,and also reduce power consumption of the running system.更多还原