QNiDigitalController Class Reference

List of all members.

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Detailed Description

implementation of low level digital input/output for National Instruments board

Author:

sergio.didomizio@ge.infn.it

Public Member Functions
	QNiDigitalController (unsigned short nPorts)
	constructor
virtual	~QNiDigitalController ()
	dtor
virtual bool	SetupPort (const unsigned short &portId, const unsigned char &word)
	prepare specified port with word
virtual bool	SetupPorts (const std::vector< unsigned char > &words)
	prepare all ports with specified words
virtual bool	Write ()
	write data
virtual bool	ClearPorts ()
	reset all ports to zero
virtual bool	ClearPort (unsigned short portId)
	reset specified port to zero
Protected Member Functions
int	HandleNiError (int niErrCode)
	handle DAQmx error codes
void	ClearTask ()
	clear DAQmx task
bool	InitTask ()
	init DAQmx task
Protected Attributes
const unsigned short	fPorts
unsigned long	fWords

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Constructor & Destructor Documentation

QNiDigitalController::QNiDigitalController

(

unsigned short

nPorts

)

constructor

Parameters:

nPorts

number of 8bit ports of the digital board

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Member Function Documentation

bool QNiDigitalController::SetupPort	(	const unsigned short &	portId,
		const unsigned char &	word
	)			[virtual]

prepare specified port with word

Parameters:

	portId	id of the port to be prepared (start from 0)
	word	word to be written to port

Returns:

true on success, false on failure

bool QNiDigitalController::SetupPorts

(

const std::vector< unsigned char > &

words

)

[virtual]

prepare all ports with specified words

Parameters:

words

vector of words to be written

Returns:

true on success, false on failure

bool QNiDigitalController::Write

(

)

[virtual]

write data

Returns:

true on success, false on failure

bool QNiDigitalController::ClearPorts

(

)

[virtual]

reset all ports to zero

Returns:

true on success, false on failure

bool QNiDigitalController::ClearPort

(

unsigned short

portId

)

[virtual]

reset specified port to zero

Returns:

true on success, false on failure

int QNiDigitalController::HandleNiError

(

int

niErrCode

)

[protected]

handle DAQmx error codes

Parameters:

niErrCode

error code defined in file NIDAQmx.h

Returns:

0 in case of success, -1 in case of error and 1 in case of warning

In case of warning (positive error code) a warning is sent to message logger. In case of error (negative error code) an Error is sent to message logger and process status is set to QError_s (see QProcessStatus documentation)

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

• /usr/local/cuore/pkg/apollopulser/QNiDigitalController.hh
• /usr/local/cuore/pkg/apollopulser/QNiDigitalController.cc

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