基于MSP430的GPS时间信息提取系统  

System obtaining time information of GPS based on MSP430

作　　者：史海峰[1] 张森[1] 唐劲松[1] 胡晓宇[1] 

机构地区：[1]海军工程大学电子工程学院,武汉430033

出　　处：《仪器仪表用户》2008年第5期80-81,共2页Instrumentation

摘　　要：本文设计了一种低功耗的提取GPS时间信号的系统,系统采用低功耗的MSP430F147作为主控制器,并选用GPXBM002F作为接收模块,实现了GPS时间的提取。采用纽扣电池作为GPXBM002F内部实时时钟的备用电池,确保离线时时钟信息的不丢失,提高GPS重启动的速度。整个系统电路简单,工作可靠,系统输出时间误差低于±0.1ms,能够满足大多数用户对授时精度的要求。A low power consuming system obtaining time informat of GPS is designed in this paper. The proposed system works by sing a microprocessor of MSP430FI47 as the main controller GPXBMOO2F as a GPS module. A button battery is used as tne back-up battery for the real time clock in the GPXBMOO2F, which makes sure that the clock information is not lost when the GPS is powered off, and it will help the GPS module restarts more quickly. The system characterizes by simple circuit, high reliability and low time error. Its time error is below ±0. 1 ms, theretore it can meet the need of most users.

关 键 词：GPS 时间信息提取 MSP430 

分 类 号：O422[理学—声学]