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GLAST / LAT > DAQ and FSW > FSW > Doxygen Index> QSE / V2-3-0 > qse / sun-gcc

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QDF_cal_prd.h File Reference

Interface to the CAL range predictor functions. More...

Typedefs
typedef struct _QDF_cal_prd	QDF_cal_prd
typedef struct _ECR_cal	ECR_cal
Functions
unsigned int	QDF_cal_prd_sizeof (void)
	Returns the size, in bytes, of a QDF_cal_prd structure.
int	QDF_cal_prd_construct (QDF_cal_prd *prd, const ECR_cal *cal)
	Fills the range prediction data structures.
static __inline int	QDF__calA_prd_predict (unsigned short int base, unsigned char shift, unsigned short int gain, signed short int pedestal)
	Predicts the value of a different range from the value of a specified range (range) using linear parameters found in ple.
static __inline int	QDF__calB_prd_predict (unsigned short int base, unsigned char shift, unsigned short int gain, signed short int pedestal)
	Predicts the value of a different range from the value of a specified range (range) using linear parameters found in ple.

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Detailed Description

Interface to the CAL range predictor functions.

Author:

JJRussell - russell@slac.stanford.edu

   CVS $Id: QDF_cal_prd.h,v 1.3 2010/09/02 21:35:39 russell Exp $

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Function Documentation

static __inline int QDF__calA_prd_predict	(	unsigned short int	base,
		unsigned char	shift,
		unsigned short int	gain,
		signed short int	pedestal
	)			[static]

Predicts the value of a different range from the value of a specified range (range) using linear parameters found in ple.

Returns:

The predicted value

Parameters:

	base	The base range value
	shift	The exponent of relative gains between the base range and the range to be predicted.
	gain	The normalized manitissa of the relative gain between the base range and the range to be predicted
	pedestal	The pedestal or offset between the two ranges, in units of the predicted range. Note that this is a signed quantity.

This predictor is for format 0 and 1 events, i.e. those prior to the fix that does not allow for negative ADC values.

static __inline int QDF__calB_prd_predict	(	unsigned short int	base,
		unsigned char	shift,
		unsigned short int	gain,
		signed short int	pedestal
	)			[static]

Predicts the value of a different range from the value of a specified range (range) using linear parameters found in ple.

Returns:

The predicted value

Parameters:

	base	The base range value
	shift	The exponent of relative gains between the base range and the range to be predicted.
	gain	The normalized manitissa of the relative gain between the base range and the range to be predicted
	pedestal	The pedestal or offset between the two ranges, in units of the predicted range. Note that this is a signed quantity.

This predictor is for format 2 events, i.e. those after the fix that does not allow for negative ADC values.

int QDF_cal_prd_construct	(	QDF_cal_prd *	prd,
		const ECR_cal *	cal
	)

Fills the range prediction data structures.

Returns:

Status. Currently the only failure mode is if one of the generated constants occupies more bits than it is allocated.

Parameters:

	prd	The range prediction data structure to fill
	cal	The CAL calibration constants used in the filling of the range prediction data structure

unsigned int QDF_cal_prd_sizeof

(

void

)

Returns the size, in bytes, of a QDF_cal_prd structure.

Returns:

The size, in bytes, of a QDF_cal_prd structure

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