A COMPAQ-286 MICRO-PROCESSOR BASED HIGH-SPEED HIGH-DENSITY DIGITAL DATA-ACQUISITION AND RECORDING SYSTEM. VOLUME I: SYSTEM OVERVIEW

Authors
  1. Ashcroft, K.B.
  2. Holtham, P.M.
  3. Kobewka, K.M.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN);Barrodale Computing Services Ltd, Victoria BC (CAN)
Abstract
A design is presented for a 'state-of-the-art' high-speed high-density data-acquisition system based on a commercially available COMPAQ-286 microcomputer. The system utilizes an 'in house' developed A/D board, capable of sampling 31 channels (expandable to 62) with 16-bit resolution, and with an aggregate sample rate of approximates to 100 kbytes/sec. Data are logged on a Hewlett Packard 9144 digital cassette drive that uses 68 megabyte formatted cassettes. To achieve the required throughput, the software, written in 286-assembler, is interrupt-driven and uses direct memory access on output. The data-acquisition system is described in two volumes, the first giving a system overview, and the second providing sufficient software and hardware for the system to be reproduced.
Report Number
DREP-TM-88-23 — Technical Memorandum
Date of publication
15 Jun 1988
Number of Pages
33
DSTKIM No
89-01682
CANDIS No
59612
Format(s):
Hardcopy;Originator's fiche received by DSIS

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