Advantech PCI-1736UP Spécifications Page 55
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
Comedi
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Description
The function comedi_get_n_channels() returns the number of channels of the subdevice subdevice belonging to the
comedi device device. This function returns -1 on error and the Comedilib error value is set.
5.4.1.18 comedi_get_n_ranges
comedi_get_n_ranges — number of ranges of channel
Synopsis
#include <comedilib.h>
int comedi_get_n_ranges(comedi_t * device, unsigned int subdevice, unsigned int channel);
Description
The function comedi_get_n_ranges() returns the number of ranges of the channel channel belonging to the subdevice
subdevice of the comedi device device. This function returns -1 on error.
5.4.1.19 comedi_get_n_subdevices
comedi_get_n_subdevices — number of subdevices
Synopsis
#include <comedilib.h>
int comedi_get_n_subdevices(comedi_t * device);
Description
The function comedi_get_n_subdevices() returns the number of subdevices belonging to the Comedi device referenced
by the parameter device, or -1 on error.
5.4.1.20 comedi_get_range
comedi_get_range — range information of channel
Synopsis
#include <comedilib.h>
comedi_range * comedi_get_range(comedi_t * device, unsigned int subdevice, unsigned int channel, unsigned int range);
Description
The function comedi_get_range() returns a pointer to a comedi_range structure that contains information on the range
specified by the subdevice, channel, and range parameters. The pointer is valid until the Comedi device device is closed.
If there is an error, NULL is returned.
- Contents 3
- List of Figures 11
- 1 Overview 12
- 1.4 DAQ signals 13
- 1.5 Device hierarchy 14
- 1.6 Acquisition terminology 14
- 1.7 DAQ functions 15
- 1.8 Supporting functionality 15
- 2 Configuration 16
- 3 Writing Comedi programs 19
- 10 / 148 21
- 3.4 Asynchronous acquisition 22
- 12 / 148 23
- 13 / 148 24
- 3.5 Further examples 25
- 15 / 148 26
- 16 / 148 27
- 17 / 148 28
- 4.2.2 Instruction execution 28
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- 19 / 148 30
- 4.5.1 Executing a command 30
- 20 / 148 31
- 21 / 148 32
- 4.5.4 The command flags 32
- 4.6 Slowly-varying inputs 33
- 23 / 148 34
- 24 / 148 35
- 4.7.4 Extended Triggering 35
- 25 / 148 36
- 4.7.5 Analog Triggering 36
- 26 / 148 37
- 4.7.7 Counter configuration 37
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- 5 Comedi reference 42
- 32 / 148 43
- 5.2.2 CR_PACK_FLAGS 43
- 5.3 Data types and structures 44
- 35 / 148 46
- 5.3.7 comedi_cmd 46
- 5.3.8 comedi_insn 46
- 36 / 148 47
- 5.3.9 comedi_range 47
- 5.3.10 comedi_krange 47
- 5.4 Functions 48
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- Synopsis 56
- Description 56
- 5.5 Kernel drivers 84
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- MicroAxial ADQ12-B adq12b 89
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- Status: works 105
- Manufacturer Device Name 105
- 95 / 148 106
- Author: ds, fmhess 107
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- Status: complete 116
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- 5.5.51 fl512 -- unknown 119
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- 125 / 148 136
- Advantech PCL-816 pcl816 137
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- 5.5.88 pcm3730 -- PCM3730 140
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- Winsystems PCM-MIO pcmmio 142
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- Status: stable 149
- ITL USB-DUX-FAST usbduxfast 149
- Status: Stable 150
- ITL USB-DUX-SIGMA usbduxsigma 150
- 6 Writing a Comedi driver 151
- 6.2 Generic functionality 152
- 142 / 148 153
- 6.2.1.1 comedi_lrange 153
- 6.2.1.2 comedi_subdevice 153
- 143 / 148 154
- 6.2.1.3 comedi_device 154
- 6.2.1.4 comedi_async 154
- 144 / 148 155
- 6.2.1.5 comedi_driver 155
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- 7 Glossary 158
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