NDLI: Multitasking multiprocessing system distributes tasks to hardware measurement task sequencer and 32-bit processors in 100 K sample/s 16-bit portable data acquisition and processing system

Content Provider	IEEE Xplore Digital Library
Author	Briscoe, T.D.
Copyright Year	1993
Description	Author affiliation: Campbell Scientific, Inc., Logan, UT, USA (Briscoe, T.D.)
Abstract	A low power portable data acquisition and control system is described that permits high resolution measurements both in a laboratory setting and in the field. Integrated processing in the system provides a means for analyzing the results of measurements in real-time instead of recording the measurements and transferring the data to a second system for post processing. By distributing low level measurement tasks to a specialized hardware task sequencer and high level processes to one or more 32-bit processors, 16-bit resolution measurements can be made with very precise timing while maintaining processing power. Use of serial links as direct memory access (DMA) channels from the analog-to-digital converter to the main processor and between multiple processors allows high level processing without interrupting or changing the timing of the 100 K sample/s data acquisition. One of the first applications of the system as part of a trace gas analyzer is described.
Starting Page	705
Ending Page	708
File Size	403348
Page Count	4
File Format	PDF
ISBN	0780312295
DOI	10.1109/IMTC.1993.382552
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-05-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multitasking Multiprocessing systems Hardware Data acquisition Power measurement Timing Control systems Laboratories Real time systems Level measurement
Content Type	Text
Resource Type	Article

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