PikeAero::CTaskFuelPressureMonitor Class Reference

Implements a fuel pressure monitor that controlls the fuel pump outputs and provides fuel pressure data to the EFI calculator. More...

#include <ctaskfuelpressuremonitor.h>

Inheritance diagram for PikeAero::CTaskFuelPressureMonitor:

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Collaboration diagram for PikeAero::CTaskFuelPressureMonitor:

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Public Member Functions
	CTaskFuelPressureMonitor ()
void	event (CEvent *e)
	The CEvent listener [ inherits pointer ownership ].
virtual CMachine::bit32	fault ()
	The CTaskScheduler will call the fault() method when a fault code was returned by any of the task's other methods.
virtual const char *	name ()
virtual CMachine::bit32	run ()
	called exactly once. perform task initialization such as initializing private variable. Other tasks are not guaranteed so do not interract with other tasks at this stage.
virtual CMachine::bit32	start ()
	called exactly once. all tasks are initialized at this point. called just prior to first call to run()
virtual CMachine::bit32	stop ()
	The CTaskScheduler will call the stop () method after the task was scheduled for cancelation.
virtual	~CTaskFuelPressureMonitor ()
Private Attributes
CMachine::ubit32	mFuelPressure [2]
CBinaryOutputGPIO *	mFuelPump [2]

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Detailed Description

Implements a fuel pressure monitor that controlls the fuel pump outputs and provides fuel pressure data to the EFI calculator.

Author:

Michael Sharkey <mike@pikeaero.com>

Assumes fuel pressure senors are connected to the STR730 internal A/D channels 0, and 1. Fuel pressure 0 and 1 control fuel pump relay outputs 0 and 1 respectively.

Definition at line 34 of file ctaskfuelpressuremonitor.h.

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Constructor & Destructor Documentation

PikeAero::CTaskFuelPressureMonitor::CTaskFuelPressureMonitor

(

)

get instances of the GPIO pins

initialize with off-scale pressure reading

Definition at line 28 of file ctaskfuelpressuremonitor.cpp.

References GPIO1, GPIO_PIN_4, GPIO_PIN_5, mFuelPressure, mFuelPump, PikeAero::ITask::PriorityLow, and PikeAero::ITask::setPriority().

: ITask()
{

    /** get instances of the GPIO pins */
    mFuelPump[0] = new CBinaryOutputGPIO( GPIO1, GPIO_PIN_4, false, false );
    mFuelPump[1] = new CBinaryOutputGPIO( GPIO1, GPIO_PIN_5, false, false );

    /** initialize with off-scale pressure reading */
    mFuelPressure[0]=0xFFFFFFFF;
    mFuelPressure[1]=0xFFFFFFFF;

    setPriority( ITask::PriorityLow );
}

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PikeAero::CTaskFuelPressureMonitor::~CTaskFuelPressureMonitor

(

)

[virtual]

Definition at line 44 of file ctaskfuelpressuremonitor.cpp.

References PikeAero::CEvent::AnalogToDigital, mFuelPump, PikeAero::CEventQueue::removeListener(), and stop().

{
    stop();
    delete mFuelPump[0];
    delete mFuelPump[1];
    CEventQueue::removeListener(this,CEvent::AnalogToDigital);
}

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Member Function Documentation

void PikeAero::CTaskFuelPressureMonitor::event

(

CEvent *

e

)

[virtual]

The CEvent listener [ inherits pointer ownership ].

The CEvent listener - Do not take pointer ownership of CEvent object pointer.

wake up the bottom half

Reimplemented from PikeAero::CObject.

Definition at line 115 of file ctaskfuelpressuremonitor.cpp.

References PikeAero::CEvent::AnalogToDigital, mFuelPressure, PikeAero::ITask::setSleeping(), and PikeAero::CEvent::type().

{
    switch ( e->type() )
    {
        case CEvent::AnalogToDigital:
            {
                CEventAnalogConversion* event = (CEventAnalogConversion*)e;
                mFuelPressure[0] = event->value(0);
                mFuelPressure[1] = event->value(1);
                setSleeping(false); /** wake up the bottom half */
            }
            break;
        default:
            break;
    }
}

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CMachine::bit32 PikeAero::CTaskFuelPressureMonitor::fault

(

)

[virtual]

The CTaskScheduler will call the fault() method when a fault code was returned by any of the task's other methods.

Returns:

0 on success.

The CTaskScheduler will call the fault() method when a fault code was returned by any of the task's other methods.

Reimplemented from PikeAero::ITask.

Definition at line 107 of file ctaskfuelpressuremonitor.cpp.

{
    return 0;
}

virtual const char* PikeAero::CTaskFuelPressureMonitor::name

(

)

[inline, virtual]

Returns:

A CString containing an human readable name for the task

Reimplemented from PikeAero::ITask.

Definition at line 43 of file ctaskfuelpressuremonitor.h.

{return "CTaskFuelPressureMonitor";}

CMachine::bit32 PikeAero::CTaskFuelPressureMonitor::run

(

)

[virtual]

called exactly once. perform task initialization such as initializing private variable. Other tasks are not guaranteed so do not interract with other tasks at this stage.

Called periodically by CTaskScheduler to do a piece of work.

Returns:

0 on success.

Reimplemented from PikeAero::ITask.

Definition at line 68 of file ctaskfuelpressuremonitor.cpp.

References PikeAero::CMachine::config(), PikeAero::CMachine::FaultFuelPressureHigh, PikeAero::CMachine::FaultFuelPressureLow, PikeAero::CMachine::FaultNone, mFuelPressure, mFuelPump, PikeAero::CBinaryInputOutputGPIO::reset(), PikeAero::CBinaryInputOutputGPIO::set(), and PikeAero::ITask::setSleeping().

{
    CMachine::FaultCode rc = CMachine::FaultNone;

    for ( CMachine::ubit32 n=0; n < 2; n++ )
    {
        if ( mFuelPressure[n] <= CMachine::config()->getFuelPressureMin(n) )
        {
            rc = CMachine::FaultFuelPressureLow;
            mFuelPump[n]->set();
        }
        else
        if ( mFuelPressure[n] >= CMachine::config()->getFuelPressureMax(n) )
        {
            rc = CMachine::FaultFuelPressureHigh;
            mFuelPump[n]->reset();
        }
    }

    setSleeping(true);
    return rc;
}

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CMachine::bit32 PikeAero::CTaskFuelPressureMonitor::start

(

)

[virtual]

called exactly once. all tasks are initialized at this point. called just prior to first call to run()

Do task initialization. Called just prior to first call to run().

Returns:

0 on success.

Install an event listener to listen to CEvent::AnalogToDigital CEvents.

Reimplemented from PikeAero::ITask.

Definition at line 56 of file ctaskfuelpressuremonitor.cpp.

References PikeAero::CEvent::AnalogToDigital, PikeAero::CEventQueue::installListener(), and PikeAero::ITask::setSleeping().

{
    setSleeping(true);
    /** Install an event listener to listen to CEvent::AnalogToDigital CEvents. */
    CEventQueue::installListener(this,CEvent::AnalogToDigital);
    return 0;
}

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CMachine::bit32 PikeAero::CTaskFuelPressureMonitor::stop

(

)

[virtual]

The CTaskScheduler will call the stop () method after the task was scheduled for cancelation.

Returns:

0 on success.

Reimplemented from PikeAero::ITask.

Definition at line 95 of file ctaskfuelpressuremonitor.cpp.

References mFuelPump, PikeAero::CBinaryInputOutputGPIO::reset(), and PikeAero::ITask::setSleeping().

Referenced by ~CTaskFuelPressureMonitor().

{
    setSleeping(true);
    mFuelPump[0]->reset();
    mFuelPump[1]->reset();
    return 0;
}

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Field Documentation

CMachine::ubit32 PikeAero::CTaskFuelPressureMonitor::mFuelPressure[2] [private]

Definition at line 70 of file ctaskfuelpressuremonitor.h.

Referenced by CTaskFuelPressureMonitor(), event(), and run().

CBinaryOutputGPIO* PikeAero::CTaskFuelPressureMonitor::mFuelPump[2] [private]

Definition at line 69 of file ctaskfuelpressuremonitor.h.

Referenced by CTaskFuelPressureMonitor(), run(), stop(), and ~CTaskFuelPressureMonitor().

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

• ctaskfuelpressuremonitor.h
• ctaskfuelpressuremonitor.cpp