CS3310DIO Class Reference

#include <cs3310dio.h>

Inheritance diagram for CS3310DIO:

Collaboration diagram for CS3310DIO:

Public Member Functions
	CS3310DIO (DigitalIO *dio)
	CS3310DIO (void)
virtual	~CS3310DIO (void)
virtual int	open (DigitalIO &dio)
virtual int	open (Device &device) override
virtual bool	isOpen (void) const
virtual void	close (void)
virtual const Options &	settings (void) const
virtual int	lines (void) const
virtual double	minLevel (void) const
virtual double	maxLevel (void) const
virtual void	levels (vector< double > &l) const
virtual int	attenuate (int di, double &decibel)
virtual int	testAttenuate (int di, double &decibel)
int	setZeroCrossing (bool enable=true)
int	setMute (bool mute=true)
int	calibrate (void)
Public Member Functions inherited from Attenuator
	Attenuator (void)
	Attenuator (const string &deviceclass)
virtual	~Attenuator (void)
virtual int	mute (int di)
virtual int	testMute (int di)
virtual int	open (const string &device)

Protected Member Functions
virtual void	initOptions () override
Protected Member Functions inherited from Attenuator
void	setInfo (void)

Additional Inherited Members
Static Public Attributes inherited from Attenuator
static const double	MuteAttenuationLevel
static const int	Underflow
static const int	Overflow

Detailed Description

[Attenuator] Control the cs3310 attenuator via a DigitalIO device

Author

Jan Benda

Version

1.1

Technicals by Hartmut Schuetze

First, the CS-signal has to be set low to adress the chip. Then, the data are presented at the DATAOUT-pin, and are strobed via the STROBE-Signal into the chip. Repeat this for all the bits we want to transfer. After this, we wait a little before we reset the CS-signal back to high. The MUTE-signal mutes the chip (.. who would have guessed...?), but without changing the set attenuation. Additionally, if you leave MUTE\ low for more than 2 ms, the CS 3310 recalibrates itself. The ZCEN-signal means zero crossing detection enable, and does exactly this. If it is set, the chip waits for the next zero crossing of the signal before changing to the new attenuation. This reduces clicking (for you HiFi-proffesionals out there...), and is a really elegant feature. If there are no zero crossing, the setting changes are forced after 18 ms.

Constructor & Destructor Documentation

CS3310DIO

(

DigitalIO *

dio

)

References CS3310DIO::open().

CS3310DIO

(

void

)

References CS3310DIO::initOptions().

~CS3310DIO ( void  )

virtual

Member Function Documentation

int open ( DigitalIO &  dio )

virtual

References DigitalIO::allocateLine(), DigitalIO::freeLines(), DigitalIO::isOpen(), and CS3310DIO::isOpen().

Referenced by CS3310DIO::CS3310DIO(), and CS3310DIO::open().

int open ( Device &  device )

overridevirtual

Reimplemented from Attenuator.

References CS3310DIO::open().

bool isOpen ( void  ) const

virtual

Implements Attenuator.

References DigitalIO::isOpen().

Referenced by CS3310DIO::attenuate(), CS3310DIO::calibrate(), CS3310DIO::close(), CS3310DIO::open(), CS3310DIO::setMute(), CS3310DIO::setZeroCrossing(), and CS3310DIO::testAttenuate().

void close ( void  )

virtual

Implements Attenuator.

References DigitalIO::freeLines(), CS3310DIO::isOpen(), and DigitalIO::write().

const Options & settings ( void  ) const

virtual

Returns the current settings of the attenuator.

int lines ( void  ) const

virtual

Returns the number of output lines the attenuator device supports.

Implements Attenuator.

double minLevel ( void  ) const

virtual

Returns the minimum possible attenuation level in decibel. This number can be negative, indicating amplification.

Implements Attenuator.

double maxLevel ( void  ) const

virtual

Returns the maximum possible attenuation level in decibel.

Implements Attenuator.

void levels ( vector< double > &  l ) const

virtual

Returns in l all possible attenuation levels sorted by increasing attenuation levels (highest last).

Implements Attenuator.

int attenuate ( int  di, double &  decibel  )

virtual

Implements Attenuator.

References CS3310DIO::isOpen(), Attenuator::MuteAttenuationLevel, Attenuator::Overflow, and Attenuator::Underflow.

int testAttenuate ( int  di, double &  decibel  )

virtual

Implements Attenuator.

References CS3310DIO::isOpen(), Attenuator::MuteAttenuationLevel, Attenuator::Overflow, and Attenuator::Underflow.

int setZeroCrossing

(

bool

enable = true

)

References CS3310DIO::isOpen(), and DigitalIO::write().

int setMute

(

bool

mute = true

)

References CS3310DIO::isOpen(), and DigitalIO::write().

int calibrate

(

void

)

References CS3310DIO::isOpen(), and DigitalIO::write().

void initOptions ( void  )

overrideprotectedvirtual

Referenced by CS3310DIO::CS3310DIO().

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

• cs3310dio.h
• cs3310dio.cc