基于MSP430F1611和SD卡的心电数据存储系统的低功耗设计  

A Low-power design of ECG signal storage system based on MSP430F1611 and SD card

作　　者：付秀泉[1] 陈杭[1] 叶树明[1] 

机构地区：[1]浙江大学生物医学工程与仪器科学学院,浙江杭州310027

出　　处：《电子技术应用》2009年第4期45-47,51,共4页Application of Electronic Technique

基　　金：国家863计划"深海原位过程式生化发光反应自动检测技术与仪器开发"项目(2007AA09Z210)

摘　　要：系统基于高集成度、低功耗的MSP430F1611单片机,利用SPI总线与SD卡通信。在单片机RAM较小的情况下,平衡SD卡存储速度、所需RAM以及系统功耗,设计优化的FAT16文件系统,实现对SD卡的数据写入。将该设计应用于便携式心电监护仪上,完全满足48h 256Hz心电采样时间和频率的要求,实现了对心电数据的实时保存。The presented system, based on high-intergration, low-power SCM MSP430F1611, realized communication by SD card and SPI bus. Under the situation of lack of RAM ,the design balanced storage rate of SD card, RAM and system power, established optimized FAT16 file system in SD card which realized the storage of data. The design was used on portable ECG monitor very well which required 48 hours record and 256 Hz sampling frequency.

关 键 词：低功耗 SD卡 文件系统 MSP430F1611 心电 

分 类 号：TP33[自动化与计算机技术—计算机系统结构]