Direct memory access methods applied to chaotic behavior experiments

Author

Lorrondo, H.A. ; Rivera, Raul R. ; Hidalgo, Roberto M. ; Epele, Luis

Author_Institution

Univ. Nacional de Mar del Plata, Argentina

Volume

46

Issue

5

fYear

1997

fDate

10/1/1997 12:00:00 AM

Firstpage

1183

Lastpage

1188

Abstract

This paper deals with the implementation of a PC-controlled benchmark specially suited to real-time experimental investigation of oscillators driven by impulsive parametric pulses. The benchmark performs both the acquisition of the output signal and the generation of the parametric pulses. It also allows the introduction of a programmable delay to investigate its influence on the dynamics of the oscillator. The time required for the building of each pulse has been reduced from 10 ms (typical setting time of a standard programmable generator) to 15 μs, employing the standard PC´s direct memory access (DMA) transfer and pulse generation capabilities, allowing the investigation of oscillators with relevant frequency content up to 30 kHz

Keywords

analogue-digital conversion; chaos; circuit analysis computing; computerised instrumentation; data acquisition; file organisation; microcomputer applications; oscillators; performance evaluation; real-time systems; synchronisation; 10 ms; 15 mus; 30 kHz; PC-controlled benchmark; benchmark; chaotic behavior experiments; direct memory access methods; direct memory access transfer; impulsive parametric pulses; nonlinear oscillators; output signal; parametric pulses; phase portraits; programmable delay; pulse generation; real-time experimental investigation; setting time; standard programmable generator; synchronisation; Chaos; Data acquisition; Delay; Frequency synchronization; Oscillators; Physics; Pulse generation; Pulse measurements; Signal generators; Signal sampling;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.676737

Filename

676737