1COMEDI_DATA_READ_DEL(3)        Comedi reference        COMEDI_DATA_READ_DEL(3)
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NAME

6       comedi_data_read_delayed - read single sample from channel after
7       delaying for specified settling time
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SYNOPSIS

10       #include <comedilib.h>
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12       int comedi_data_read_delayed(comedi_t * device, unsigned int subdevice,
13                                    unsigned int channel, unsigned int range,
14                                    unsigned int aref, lsampl_t * data,
15                                    unsigned int nanosec);
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DESCRIPTION

18       Similar to comedi_data_read except it will wait for the specified
19       number of nanoseconds between setting the input channel and taking a
20       sample. For analog inputs, most boards have a single analog to digital
21       converter which is multiplexed to be able to read multiple channels. If
22       the input is not allowed to settle after the multiplexer switches
23       channels, the reading will be inaccurate. This function is useful for
24       allowing a multiplexed analog input to settle when switching channels.
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26       Although the settling time is specified in nanoseconds, the actual
27       settling time will be rounded up to the nearest microsecond.
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AUTHORS

30       David Schleef <ds@schleef.org>
31           Author.
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33       Frank Mori Hess <fmhess@users.sourceforge.net>
34           Author.
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36       Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be>
37           Author.
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39       Bernd Porr <tech@linux-usb-daq.co.uk>
40           Author.
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42       Ian Abbott <abbotti@mev.co.uk>
43           Author.
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45       Éric Piel <piel@delmic.com>
46           Author.
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49       Copyright © 1998-2003 David Schleef
50       Copyright © 2001-2003, 2005, 2008 Frank Mori Hess
51       Copyright © 2002-2003 Herman Bruyninckx
52       Copyright © 2012 Bernd Porr
53       Copyright © 2012 Ian Abbott
54       Copyright © 2012, 2015 Éric Piel
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56       This document is part of Comedilib. In the context of this document,
57       the term "source code" as defined by the license is interpreted as the
58       XML source.
59
60       This library is free software; you can redistribute it and/or modify it
61       under the terms of the GNU Lesser General Public License as published
62       by the Free Software Foundation, version 2.1 of the License.
63
64       This library is distributed in the hope that it will be useful, but
65       WITHOUT ANY WARRANTY; without even the implied warranty of
66       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
67       General Public License for more details.
68
69       You should have received a copy of the GNU Lesser General Public
70       License along with this library; if not, write to the Free Software
71       Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
72       USA.
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77Comedi                            05/11/2017           COMEDI_DATA_READ_DEL(3)
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