#include <DAQmxTask.h>

Inherits DAQmx::CDAQmxTask.

Public Member Functions
void	CreateAIVoltageChannel (const std::wstring &_devicechannel, const std::wstring &_name=L"", int32 _terminalconfig=DAQmx_Val_Cfg_Default, float64 _minval=-10.0, float64 _maxval=10.0, int32 _units=DAQmx_Val_Volts, const std::wstring &_customscalename=L"")

void	ConfigureBuffer (const uInt32 &_sampsperchannel)

int32	ReadU16 (std::vector< uint16_t > &_data, const int32 &_sampsperchan, const uint32_t &_channels, bool &_timedout, const float64 &_timeout=2)

int32	ReadU16Dummy (std::vector< uint16_t > &_data, const int32 &_sampsperchan, const uint32_t &_channels, bool &_timedout, const float64 &_timeout=2)

int32	ReadI16 (std::vector< int16_t > &_data, const int32 &_sampsperchan, const uint32_t &_channels, bool &_timedout, const float64 &_timeout=2)

Public Member Functions inherited from DAQmx::CDAQmxTask
	~CDAQmxTask (void)

void	CreateTask (const std::wstring &_name=L"")

bool	Created () const

void	ConfigureImplicitTiming (const int32 &_mode, const int32 &_samplesperchan)

void	ConfigureSampleTiming (const std::wstring &_src, const float64 &_rate, const int32 &_samplesperchan, const int32 &_samplingtype=DAQmx_Val_ContSamps, const int32 &_actedge=DAQmx_Val_Rising)

void	ConfigureReferenceClock (const std::wstring &_src, const float64 &_rate)

void	ConfigureDigStartTrigger (const std::wstring &_src, const int32 &_trigedge=DAQmx_Val_Rising)

void	Start (void)

void	Stop (void)

void	Clear (void)

bool	IsTaskDone (void)

int32_t	WaitUntilDone (const float64 &_waittime)

void	ExportSignal (int32 _signal, const std::wstring &_terminal)

void	SetWriteOffset (int32 posreltofirst)

void	SetRegeneration (const bool &_regenerate)

Protected Attributes
std::mersenne_twister< uint32_t, 32, 624, 397, 31, 0x9908b0df, 11, 7, 0x9d2c5680, 15, 0xefc60000, 18 >	mtgen

Protected Attributes inherited from DAQmx::CDAQmxTask
TaskHandle	task_handle

Detailed Description

Wraps a DAQmx Analog Input Task.

Usually the device has int16 internally (since the ranges are +-x volts) If one, however, reads that out as a uin16, positive data is from 0-32767 and all negative data is 0

Definition at line 258 of file DAQmxTask.h.

Member Function Documentation

void DAQmx::CDAQmxAnalogInTask::CreateAIVoltageChannel	(	const std::wstring &	_devicechannel,
		const std::wstring &	_name = `L""`,
		int32	_terminalconfig = `DAQmx_Val_Cfg_Default`,
		float64	_minval = `-10.0`,
		float64	_maxval = `10.0`,
		int32	_units = `DAQmx_Val_Volts`,
		const std::wstring &	_customscalename = `L""`
	)

Parameters

[in]	_devicechannel	channel names on the device
[in]	_name	name this channel should have
[in]	_terminalconfig	Input terminal configuration. Possible values are (from NiDAQmx.h): DAQmx_Val_Bit_TermCfg_RSE (1<<0) // RSE terminal configuration DAQmx_Val_Bit_TermCfg_NRSE (1<<1) // NRSE terminal configuration DAQmx_Val_Bit_TermCfg_Diff (1<<2) // Differential terminal configuration DAQmx_Val_Bit_TermCfg_PseudoDIFF (1<<3) // Pseudodifferential terminal configuration
[in]	_minval,_maxval	minimum and maximum expected input signal (changes the digitizer preamp, so choose wisely)
[in]	_units	Unit type of the input signal. Possible values are (from NiDAQmx.h): DAQmx_Val_Volts 10348 // Volts DAQmx_Val_FromCustomScale 10065 // From Custom Scale
[in]	_customscalename	name of a custom defined scale

Definition at line 312 of file DAQmxTask.cpp.

void DAQmx::CDAQmxAnalogInTask::ConfigureBuffer ( const uInt32 & _sampsperchannel )

Configures input buffer (there is one buffer per channel)

Parameters

[in] _sampsperchannel buffersize per channel

Definition at line 333 of file DAQmxTask.cpp.

int32 DAQmx::CDAQmxAnalogInTask::ReadU16	(	std::vector< uint16_t > &	_data,
		const int32 &	_sampsperchan,
		const uint32_t &	_channels,
		bool &	_timedout,
		const float64 &	_timeout = `2`
	)

Parameters

[in,out]	_data	int16_t vector to read into
[in]	_sampsperchan	number of samples to read per channel
[in]	_channels	number of channels to read from
[out]	_timedout	true if read timedout (then also returning -1)
[in]	_timeout	in seconds, wait that long for enough samples to be in the buffer

Returns: number of samples read, or -1 in case of an error

Warning: size of _data has to be at least _sampsperchan*_channels; time out error does never throw an exception

Exceptions

scope::ScopeException on error during read, except time out error

Definition at line 340 of file DAQmxTask.cpp.

int32 DAQmx::CDAQmxAnalogInTask::ReadU16Dummy	(	std::vector< uint16_t > &	_data,
		const int32 &	_sampsperchan,
		const uint32_t &	_channels,
		bool &	_timedout,
		const float64 &	_timeout = `2`
	)

Generates random numbers or zeros instead of real read from a device.

Parameters

[in,out]	_data	int16_t vector to generate into
[in]	_sampsperchan	number of samples to generate per channel
[in]	_channels	number of channels to read from
[out]	_timedout	true if read timedout (then also returning -1)
[in]	_timeout	in seconds, wait that long for enough samples to be in the buffer

Returns: number of samples read, or -1 in case of an error

Warning: size of _data has to be at least _sampsperchan*_channels

Definition at line 361 of file DAQmxTask.cpp.

int32 DAQmx::CDAQmxAnalogInTask::ReadI16	(	std::vector< int16_t > &	_data,
		const int32 &	_sampsperchan,
		const uint32_t &	_channels,
		bool &	_timedout,
		const float64 &	_timeout = `2`
	)

Reads from a device as signed 16bit integers.

Parameters

[in,out]	_data	int16_t vector to read into
[in]	_sampsperchan	number of samples to read per channel
[in]	_channels	number of channels to read from
[out]	_timedout	true if read timedout (then also returning -1)
[in]	_timeout	wait that long for enough samples to be in the buffer

Returns: number of samples read, or -1 in case of an error

Warning: size of _data has to be at least _sampsperchan*_channels; time out error does never throw an exception

Exceptions

scope::ScopeException on error during read, except time out error

Definition at line 369 of file DAQmxTask.cpp.

Member Data Documentation

std::mersenne_twister<uint32_t, 32, 624, 397, 31, 0x9908b0df, 11, 7, 0x9d2c5680, 15, 0xefc60000, 18> DAQmx::CDAQmxAnalogInTask::mtgen

protected

For the ReadDummy function which returns random numbers.

Definition at line 263 of file DAQmxTask.h.

The documentation for this class was generated from the following files:

scope/devices/daqmx/DAQmxTask.h
scope/devices/daqmx/DAQmxTask.cpp

Public Member Functions

Protected Attributes

Detailed Description

Member Function Documentation

Member Data Documentation