摘要
目前嵌入式移动终端设备加入WIFI技术实现无线传输数据与语音是技术热点,并具备巨大的商业价值。在既定的电池能耗限定条件下,降低WIFI子系统的功耗,延长设备的工作和待机时间是嵌入式WIFI内置设计的技术瓶颈。本文采用ARM7系列的LPC2220作为微处理器的嵌入式开发平台,重点分析NXP(恩智浦)半导体公司的高集成度BGW200WIFI芯片,系统提出了WIFI硬件与射频电路设计、WIFI底层软件驱动开发的设计思路,尤其是四种低功耗节电管理模式,并最后给出了WIFI系统功耗的实际测试结果。
Adding WIFI in the embedded mobile device to transmit data and voice link is becoming a hot-spot on technology; meanwhile it must generate huge business potential behind. To drop down the power consumption of the WIFI part to extend the system both working time ＆ standby time under the certain limitation of power battery would a milestone. The author used the LPC2220 ARM7 CPU as development platform. Focus on the BGW200 WIFI Sip due to its high integration feature. The paper proposed the H/ W ＆ Radio design and WIFI S/W driver porting which included four power modes in the NDIS driver. In the end, it summarized the field testing result of the actual WIFI power consumption.
出处
《微计算机信息》
北大核心
2008年第23期1-3,共3页
Control & Automation
