#include <daqflexanalogoutput.h>

Inheritance diagram for DAQFlexAnalogOutput:

Collaboration diagram for DAQFlexAnalogOutput:

Public Member Functions
	DAQFlexAnalogOutput (void)

	DAQFlexAnalogOutput (DAQFlexCore &device, const Options &opts)

virtual	~DAQFlexAnalogOutput (void)

virtual int	open (DAQFlexCore &daqflexdevice)

virtual int	open (Device &device) override

virtual bool	isOpen (void) const

virtual void	close (void)

virtual int	channels (void) const

virtual int	bits (void) const

virtual double	maxRate (void) const

virtual int	maxRanges (void) const

virtual double	unipolarRange (int index) const

virtual double	bipolarRange (int index) const

virtual int	directWrite (OutList &sigs)

virtual int	prepareWrite (OutList &sigs)

virtual int	startWrite (QSemaphore *sp=0)

virtual int	writeData (void)

virtual int	stop (void)

virtual int	reset (void)

virtual Status	status (void) const

virtual bool	useAIRate (void) const

bool	prepared (void) const

bool	noMoreData (void) const

Public Member Functions inherited from AnalogOutput
	AnalogOutput (void)

	AnalogOutput (int aotype)

	AnalogOutput (const string &deviceclass, int aotype=0)

virtual	~AnalogOutput (void)

virtual int	open (const string &device) override

double	delay (int channel) const

void	setDelays (const vector< double > &delays)

void	setDelay (double delay)

double	externalReference (void) const

void	setExternalReference (double extr)

virtual int	testWrite (OutList &sigs)

bool	running (void) const

virtual long	index (void) const

virtual int	getAISyncDevice (const vector< AnalogInput * > &ais) const

virtual void	take (const vector< AnalogOutput * > &aos, vector< int > &aoinx, vector< bool > &aorate)

virtual void	addTraces (vector< TraceSpec > &traces, int deviceid) const

virtual int	matchTraces (vector< TraceSpec > &traces) const

int	analogOutputType (void) const

Protected Member Functions
virtual int	testWriteDevice (OutList &sigs)

void	writeZeros (void)

void	initOptions () override

Protected Member Functions inherited from AnalogOutput
virtual int	testWriteData (OutList &sigs)

void	setAnalogOutputType (int aotype)

void	setWriteSleep (unsigned long ms)

void	setErrorStr (const string &strg)

void	addErrorStr (const string &strg)

void	setErrorStr (int errnum)

void	addErrorStr (int errnum)

void	setErrorStr (const OutList &sigs)

void	addErrorStr (const OutList &sigs)

void	setInfo (void)

void	setSettings (const OutList &sigs, int writebuffer=0)

virtual void	startThread (QSemaphore *sp=0, bool error=false)

virtual void	run (void)

virtual void	stopWrite (void)

Friends
class	DAQFlexAnalogInput

Additional Inherited Members
Public Types inherited from AnalogOutput
enum	Status

Detailed Description

[AnalogOutput] Interface for accessing analog output of a DAQFlex board from Measurement Computing.

Author: Jan Benda

Bug:

reset() blocks for a long time at high analog input sampling rates!!!

Calibration is not yet implemented.

Analog output timing is not yet implemented for no-FIFO boards

Options: useaiclock: Use AI clock for starting AO.

For this you need to connect AICKO with AOCKI .

Constructor & Destructor Documentation

DAQFlexAnalogOutput ( void )

Create a new DAQFlexAnalogOutput without opening a device.

References DAQFlexAnalogOutput::initOptions().

DAQFlexAnalogOutput	(	DAQFlexCore &	device,
		const Options &	opts
	)

Open the analog input driver specified by its device file device.

References DAQFlexAnalogOutput::open().

~DAQFlexAnalogOutput ( void )

virtual

Stop analog input and close the daq driver.

References DAQFlexAnalogOutput::close().

Member Function Documentation

int open ( DAQFlexCore & daqflexdevice )

virtual

Open analog input on DAQFlexCore device device.

References DAQFlexAnalogOutput::channels(), DAQFlexCore::daqflexErrorStr(), DAQFlexAnalogOutput::isOpen(), DAQFlexCore::isOpen(), DAQFlexCore::maxAOChannels(), Str::number(), DAQFlexCore::sendMessage(), AnalogOutput::setDelays(), AnalogOutput::setErrorStr(), AnalogOutput::setInfo(), Str::size(), DAQFlexCore::success(), and DAQFlexAnalogOutput::writeZeros().

Referenced by DAQFlexAnalogOutput::DAQFlexAnalogOutput(), and DAQFlexAnalogOutput::open().

int open ( Device & device )

overridevirtual

Open analog input on DAQFlexCore device device.

Reimplemented from AnalogOutput.

References DAQFlexAnalogOutput::open().

bool isOpen ( void ) const

virtual

Returns true if driver was succesfully opened.

Implements AnalogOutput.

References DAQFlexCore::isOpen().

Referenced by DAQFlexAnalogOutput::bits(), DAQFlexAnalogOutput::channels(), DAQFlexAnalogOutput::close(), DAQFlexAnalogOutput::open(), and DAQFlexAnalogOutput::prepareWrite().

void close ( void )

virtual

Stop all activity and close the device.

Implements AnalogOutput.

References DAQFlexAnalogOutput::isOpen(), DAQFlexAnalogOutput::reset(), and DAQFlexAnalogOutput::writeZeros().

Referenced by DAQFlexAnalogOutput::~DAQFlexAnalogOutput().

int channels ( void ) const

virtual

Number of analog input channels.

Implements AnalogOutput.

References DAQFlexAnalogOutput::isOpen(), and DAQFlexCore::maxAOChannels().

Referenced by DAQFlexAnalogOutput::open(), DAQFlexAnalogOutput::testWriteDevice(), and DAQFlexAnalogOutput::writeZeros().

int bits ( void ) const

virtual

Resolution in bits of analog input.

Implements AnalogOutput.

References DAQFlexAnalogOutput::isOpen(), log(), and DAQFlexCore::maxAOData().

double maxRate ( void ) const

virtual

Maximum sampling rate in Hz of analog input.

Implements AnalogOutput.

References DAQFlexCore::maxAORate().

int maxRanges ( void ) const

virtual

Maximum number of analog input ranges.

double unipolarRange ( int index ) const

virtual

Voltage range index in Volt for unipolar mode. If -1 is returned this range is not supported.

References AnalogOutput::index().

double bipolarRange ( int index ) const

virtual

Voltage range index in Volt for bipolar mode. If -1 is returned this range is not supported.

References AnalogOutput::index().

int directWrite ( OutList & sigs )

virtual

Directly writes from each signal in sigs the first data value to the data acquisition board.

Implements AnalogOutput.

References OutList::addError(), gain(), DAQFlexCore::maxAOData(), DAQFlexCore::sendMessage(), OutList::size(), and OutList::success().

int prepareWrite ( OutList & sigs )

virtual

Prepare analog output of the output signals sigs on the device. If an error ocurred in any signal, the corresponding errorflags in OutData are set and a negative value is returned. This function assumes that sigs successfully passed testWrite(). The channels in sigs are not sorted.

Implements AnalogOutput.

References OutList::add(), OutList::addError(), OutList::addErrorStr(), DAQFlexCore::aiSampleRate(), DAQFlexCore::aoFIFOSize(), OutList::back(), OutData::channel(), AnalogOutput::delay(), OutList::deviceBufferSize(), OutList::deviceReset(), DAQFlexAnalogOutput::isOpen(), max(), min(), minMax(), DAQFlexCore::outPacketSize(), DAQFlexCore::sendMessage(), AnalogOutput::setSettings(), OutList::size(), OutList::sortByChannel(), OutList::success(), and DAQFlexAnalogOutput::writeData().

int startWrite ( QSemaphore * sp = 0 )

virtual

Start analog output of the output signals after they were prepared by prepareWrite(). If an error ocurred in any signal, the corresponding errorflags in OutData are set and a negative value is returned. Also start possible pending acquisition on other devices that are known from take().

Implements AnalogOutput.

References DAQFlexCore::aoFIFOSize(), DAQFlexCore::sendCommand(), and AnalogOutput::startThread().

int writeData ( void )

virtual

Write data to a running data acquisition. Returns the number of data values that were popped from the signal device-buffers (sum over all signals). If an error ocurred in any channel, the corresponding errorflags in the OutList structure are filled and a negative value is returned.

Implements AnalogOutput.

References DAQFlexCore::aoFIFOSize(), ceil(), DAQFlexCore::daqflexErrorStr(), DAQFlexCore::ErrorLibUSBBusy, DAQFlexCore::ErrorLibUSBNoDevice, DAQFlexCore::ErrorLibUSBPipe, DAQFlexCore::ErrorLibUSBTimeout, DAQFlexCore::outPacketSize(), DAQFlexCore::sendMessage(), AnalogOutput::setErrorStr(), DAQFlexCore::Success, and DAQFlexCore::writeBulkTransfer().

Referenced by DAQFlexAnalogOutput::prepareWrite().

int stop ( void )

virtual

Stop any running ananlog output activity. Returns zero on success, otherwise NotOpen.

See Also: reset(), startWrite()

Implements AnalogOutput.

References DAQFlexCore::sendCommand(), and AnalogOutput::stopWrite().

int reset ( void )

virtual

Clear any internal data buffers and reset the device. Assumes that analog output is already stopped. Returns zero on success, otherwise NotOpen.

See Also: stop(), close(), open(), isOpen()

Implements AnalogOutput.

References DAQFlexCore::clearWrite(), DAQFlexCore::sendCommand(), and DAQFlexCore::sendMessage().

Referenced by DAQFlexAnalogOutput::close().

AnalogOutput::Status status ( void ) const

virtual

Returns: the status of the analog output.

Implements AnalogOutput.

References AnalogOutput::Idle, AnalogOutput::Running, DAQFlexCore::sendMessage(), and AnalogOutput::Underrun.

bool useAIRate ( void ) const

virtual

Return true if the analog output is required to have the same sampling rate as the analog input as determined by UseAIClock.

Reimplemented from AnalogOutput.

Referenced by DAQFlexAnalogInput::startRead(), and DAQFlexAnalogInput::take().

bool prepared ( void ) const

True if analog output was prepared using testWriteDevice() and prepareWrite()

Referenced by DAQFlexAnalogInput::startRead().

bool noMoreData ( void ) const

Returns: true if writeData() does not need to be called any more.

Referenced by DAQFlexAnalogInput::startRead().

int testWriteDevice ( OutList & sigs )

protectedvirtual

Device driver specific tests on the settings in sigs for each output signal. Before this function is called, the validity of the settings in sigs was already tested by testReadData(). This function should test whether the settings are really supported by the hardware. If an error ocurred in any trace, the corresponding errorflags in the OutData are set and a negative value is returned. The channels in sigs are not sorted. This function is called by testWrite().

Implements AnalogOutput.

References OutList::addError(), DAQFlexAnalogOutput::channels(), and OutList::size().

void writeZeros ( void )

protected

Initialize all channels with zero.

References DAQFlexAnalogOutput::channels(), gain(), DAQFlexCore::maxAOData(), and DAQFlexCore::sendMessage().

Referenced by DAQFlexAnalogOutput::close(), and DAQFlexAnalogOutput::open().

void initOptions ( void )

overrideprotected

Referenced by DAQFlexAnalogOutput::DAQFlexAnalogOutput().