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Details of the Real Time Linux Foundation Working Group Project

OSADL Project: Real Time Linux Workshops

Real Time Linux Foundation Workshops since 1999

Real Time Linux Workshops

1999 - 2000 - 2001 - 2002 - 2003 - 2004 - 2005 - 2006 - 2007 - 2008 - 2009 - 2010

Eighth Real-Time Linux Workshop on October 12 to 15, 2006, in Lanzhou, Gansu, P.R.China

Design and Implementation of the Pre-demodulation Digital Recorder Software Based on Rtlinux

Yongbo Xin and Li Su
CASC Long March Launch Vehicle Technology CO. LTD
7 Building, 15 Block, NO.188 West Road, the forth South Round, BeiJing
YongboXinªyahoo.com
sudanlinaªyahoo.com.cn

As a device for collecting, storing and replaying signal data, the pre-demodulation digital recorder is used in the field of aerospace widely. In this article, we clarified the software development experience of the pre-demodulation digital recorder with high bandwidth, large storage and reliability based on Rtlinux and XFS. RTlinux can respond to the hardware interrupt promptly£¨so data collecting is almost in real time. At the same time£¨ we select XFS to manage very large data files, and RAID to guarantee the reliability of the data stored. The RTFIFO and MBUFF in RTLinux provide communications interface for kernel procedures and user space. This is a successful case of RTLinux application.

 

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