基于TMS320VC5509A的手持设备的功耗优化  

Power optimization of handheld devices based on TMS320VC5509A

作　　者：魏春娟[1,2] 郑喜凤[1] 丁铁夫[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院研究生院,北京100049

出　　处：《计算机工程与设计》2009年第16期3713-3716,共4页Computer Engineering and Design

基　　金：中国科学院东北振兴科技行动计划重点基金项目(DBZX-2-017)

摘　　要：为了延长电池供电的便携式电子产品的寿命并满足性能需求,迫切需要降低功耗。以军用手持计算器设计为例,研究了手持设备低功耗设计的主要技术和关键设计环节。从器件选择、动态电压调整(DVS)、供电管理和存储器管理等方面详细阐述了各部件的软硬件协同低功耗实现。测试结果表明,该计算器达到低功耗应用要求,设计方法对于其它的手持设备具有参考价值。To extend the service life of battery-powered portable devices while meeting performance requirements, reducing the power consumption has become a major concern. A design of military handheld calculator based on TMS320VC5509A is introduced as an exam- ple. The realization of low power by cooperation with hardware and software of all parts is described in detail, such as choices of devices, dynamic voltage scaling, management of power supply and memory etc. Test result shows that the calculator needs the requirement of low power. The methods are very useful to the design of other handheld device.

关 键 词：手持设备 低功耗 动态电压调整 电源管理 存储器管理 

分 类 号：TP323.2[自动化与计算机技术—计算机系统结构] TP368.1[自动化与计算机技术—计算机科学与技术]