HWPrescalerAsync Class Reference

Extends HWPrescaler with a external clock oszillator pin. More...

#include <timerprescaler.h>

Inheritance diagram for HWPrescalerAsync:

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Collaboration diagram for HWPrescalerAsync:

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List of all members.

Public Member Functions
	HWPrescalerAsync (AvrDevice *core, const std::string &tracename, PinAtPort tosc_pin, IOSpecialReg *asyreg, int clockSelBit, IOSpecialReg *resreg, int resetBit)
	Creates HWPrescalerAsync instance with reset but without sync reset feature.
	HWPrescalerAsync (AvrDevice *core, const std::string &tracename, PinAtPort tosc_pin, IOSpecialReg *asyreg, int clockSelBit, IOSpecialReg *resreg, int resetBit, int resetSyncBit)
	Creates HWPrescalerAsync instance with reset and sync reset feature.
virtual unsigned int	CpuCycle ()
	Count functionality for prescaler.
Protected Member Functions
unsigned char	set_from_reg (const IOSpecialReg *reg, unsigned char nv)
	IO register interface set method, see IOSpecialRegClient.
Private Attributes
IOSpecialReg *	asyncRegister
	instance of IO register with assr bits
PinAtPort	tosc_pin
	input pin for external timer oscillator
bool	pinstate
	saved pin status of osc. pin
bool	clockselect
	holds the clock select state, true is external clock
int	clockSelectBit
	holds bit position of counter clock select

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Detailed Description

Extends HWPrescaler with a external clock oszillator pin.

Todo:

check external clock input and that TOSC1 and TOSC2 get back 0 if core read port input

Definition at line 83 of file timerprescaler.h.

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Constructor & Destructor Documentation

HWPrescalerAsync::HWPrescalerAsync	(	AvrDevice *	core,
		const std::string &	tracename,
		PinAtPort	tosc_pin,
		IOSpecialReg *	asyreg,
		int	clockSelBit,
		IOSpecialReg *	resreg,
		int	resetBit
	)

Creates HWPrescalerAsync instance with reset but without sync reset feature.

Definition at line 93 of file timerprescaler.cpp.

References asyncRegister, clockselect, IOSpecialReg::connectSRegClient(), PinAtPort::GetPin(), pinstate, and tosc_pin.

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HWPrescalerAsync::HWPrescalerAsync	(	AvrDevice *	core,
		const std::string &	tracename,
		PinAtPort	tosc_pin,
		IOSpecialReg *	asyreg,
		int	clockSelBit,
		IOSpecialReg *	resreg,
		int	resetBit,
		int	resetSyncBit
	)

Creates HWPrescalerAsync instance with reset and sync reset feature.

Definition at line 110 of file timerprescaler.cpp.

References asyncRegister, clockselect, IOSpecialReg::connectSRegClient(), PinAtPort::GetPin(), pinstate, and tosc_pin.

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Member Function Documentation

unsigned int HWPrescalerAsync::CpuCycle

(

void

)

[virtual]

Count functionality for prescaler.

Reimplemented from HWPrescaler.

Definition at line 128 of file timerprescaler.cpp.

References clockselect, HWPrescaler::countEnable, PinAtPort::GetPin(), pinstate, HWPrescaler::preScaleValue, and tosc_pin.

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

IO register interface set method, see IOSpecialRegClient.

Reimplemented from HWPrescaler.

Definition at line 142 of file timerprescaler.cpp.

References asyncRegister, clockselect, and clockSelectBit.

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Member Data Documentation

IOSpecialReg* HWPrescalerAsync::asyncRegister [private]

instance of IO register with assr bits

Definition at line 111 of file timerprescaler.h.

Referenced by HWPrescalerAsync(), and set_from_reg().

bool HWPrescalerAsync::clockselect [private]

holds the clock select state, true is external clock

Definition at line 114 of file timerprescaler.h.

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

int HWPrescalerAsync::clockSelectBit [private]

holds bit position of counter clock select

Definition at line 115 of file timerprescaler.h.

Referenced by set_from_reg().

bool HWPrescalerAsync::pinstate [private]

saved pin status of osc. pin

Definition at line 113 of file timerprescaler.h.

Referenced by CpuCycle(), and HWPrescalerAsync().

PinAtPort HWPrescalerAsync::tosc_pin [private]

input pin for external timer oscillator

Definition at line 112 of file timerprescaler.h.

Referenced by CpuCycle(), and HWPrescalerAsync().

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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