摘要
为了提高计算机本地时钟的精度,介绍了一种以协调世界时修正计算机本地时钟的设备——基于PCI总线的GPS授时卡。采用了基于PCI总线的设计方案,阐述了PCI总线的驱动程序的设计。最后采集分析观测数据,结果表明授时卡对计算机的授时精度小于1ms。
In order to improve the accuracy of the computer system clock,the device-GPS timing card based on PCI Bus is introduced that can Proofread the local clock of a computer by Coordinated Universal Time. PCI bus design scheme was used and the design of PCI bus drivers was described. Finally,observing data was sampled and analyzed and the results of the analysis show that the timing precision of the timing card on a computer is less than 1 ms.
出处
《电子测量与仪器学报》
CSCD
2008年第S2期122-127,共6页
Journal of Electronic Measurement and Instrumentation
基金
中国科学院知识创新工程青年人才领域前沿项目资助
O700YR9S01
