HWPrescaler Class Reference

Prescaler unit for support timers with clock. More...

#include <timerprescaler.h>

Inheritance diagram for HWPrescaler:

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Collaboration diagram for HWPrescaler:

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List of all members.

Public Member Functions
	HWPrescaler (AvrDevice *core, const std::string &tracename)
	Creates HWPrescaler instance without reset feature.
	HWPrescaler (AvrDevice *core, const std::string &tracename, IOSpecialReg *ioreg, int resetBit)
	Creates HWPrescaler instance with reset but without sync reset feature.
	HWPrescaler (AvrDevice *core, const std::string &tracename, IOSpecialReg *ioreg, int resetBit, int resetSyncBit)
	Creates HWPrescaler instance with reset and sync reset feature.
virtual unsigned int	CpuCycle ()
	Count functionality for prescaler.
unsigned short	GetValue ()
	Get method for current prescaler counter value.
void	Reset ()
	Reset method, sets prescaler counter to 0.
Protected Member Functions
unsigned char	set_from_reg (const IOSpecialReg *reg, unsigned char nv)
	IO register interface set method, see IOSpecialRegClient.
unsigned char	get_from_client (const IOSpecialReg *reg, unsigned char v)
	IO register interface get method, see IOSpecialRegClient.
Protected Attributes
IOSpecialReg *	resetRegister
	instance of IO register with reset bits
unsigned short	preScaleValue
	prescaler counter value
bool	countEnable
Private Attributes
int	_resetBit
	holds bit position for reset bit on IO register
int	_resetSyncBit
	holds sync bit position for prescaler reset synchronisation

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Detailed Description

Prescaler unit for support timers with clock.

This is a prescaler unit without external clock input, features reset and reset sync bit. Size of prescaler is 10 bit.

Definition at line 37 of file timerprescaler.h.

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Constructor & Destructor Documentation

HWPrescaler::HWPrescaler	(	AvrDevice *	core,
		const std::string &	tracename
	)

Creates HWPrescaler instance without reset feature.

Definition at line 29 of file timerprescaler.cpp.

References AvrDevice::AddToCycleList(), AvrDevice::coreTraceGroup, preScaleValue, resetRegister, and trace_direct().

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HWPrescaler::HWPrescaler	(	AvrDevice *	core,
		const std::string &	tracename,
		IOSpecialReg *	ioreg,
		int	resetBit
	)

Creates HWPrescaler instance with reset but without sync reset feature.

Definition at line 40 of file timerprescaler.cpp.

References AvrDevice::AddToCycleList(), IOSpecialReg::connectSRegClient(), AvrDevice::coreTraceGroup, preScaleValue, resetRegister, and trace_direct().

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HWPrescaler::HWPrescaler	(	AvrDevice *	core,
		const std::string &	tracename,
		IOSpecialReg *	ioreg,
		int	resetBit,
		int	resetSyncBit
	)

Creates HWPrescaler instance with reset and sync reset feature.

Definition at line 55 of file timerprescaler.cpp.

References AvrDevice::AddToCycleList(), IOSpecialReg::connectSRegClient(), AvrDevice::coreTraceGroup, preScaleValue, resetRegister, and trace_direct().

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Member Function Documentation

virtual unsigned int HWPrescaler::CpuCycle

(

void

)

[inline, virtual]

Count functionality for prescaler.

Reimplemented from Hardware.

Reimplemented in HWPrescalerAsync.

Definition at line 67 of file timerprescaler.h.

References countEnable, and preScaleValue.

unsigned char HWPrescaler::get_from_client	(	const IOSpecialReg *	reg,
		unsigned char	v
	)			[inline, protected, virtual]

IO register interface get method, see IOSpecialRegClient.

Implements IOSpecialRegClient.

Definition at line 50 of file timerprescaler.h.

unsigned short HWPrescaler::GetValue

(

)

[inline]

Get method for current prescaler counter value.

Definition at line 75 of file timerprescaler.h.

References preScaleValue.

Referenced by PrescalerMultiplexerExt::isClock(), and PrescalerMultiplexer::isClock().

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void HWPrescaler::Reset

(

void

)

[inline, virtual]

Reset method, sets prescaler counter to 0.

Reimplemented from Hardware.

Definition at line 77 of file timerprescaler.h.

References preScaleValue.

Referenced by set_from_reg().

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unsigned char HWPrescaler::set_from_reg	(	const IOSpecialReg *	reg,
		unsigned char	nv
	)			[protected, virtual]

IO register interface set method, see IOSpecialRegClient.

Implements IOSpecialRegClient.

Reimplemented in HWPrescalerAsync.

Definition at line 71 of file timerprescaler.cpp.

References _resetBit, _resetSyncBit, countEnable, Reset(), and resetRegister.

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Member Data Documentation

int HWPrescaler::_resetBit [private]

holds bit position for reset bit on IO register

Definition at line 40 of file timerprescaler.h.

Referenced by set_from_reg().

int HWPrescaler::_resetSyncBit [private]

holds sync bit position for prescaler reset synchronisation

Definition at line 41 of file timerprescaler.h.

Referenced by set_from_reg().

bool HWPrescaler::countEnable [protected]

enables counting of prescaler (for reset sync)

Definition at line 46 of file timerprescaler.h.

Referenced by CpuCycle(), HWPrescalerAsync::CpuCycle(), and set_from_reg().

unsigned short HWPrescaler::preScaleValue [protected]

prescaler counter value

Definition at line 45 of file timerprescaler.h.

Referenced by CpuCycle(), HWPrescalerAsync::CpuCycle(), GetValue(), HWPrescaler(), and Reset().

IOSpecialReg* HWPrescaler::resetRegister [protected]

instance of IO register with reset bits

Definition at line 44 of file timerprescaler.h.

Referenced by HWPrescaler(), and set_from_reg().

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

• /home/thomas/development/delivery-check/repo/src/hwtimer/timerprescaler.h
• /home/thomas/development/delivery-check/repo/src/hwtimer/timerprescaler.cpp