timer Class Reference

#include <timerpp.hpp>

Inheritance diagram for timer:

Collaboration diagram for timer:

Public Member Functions
	timer ()
	timer (timer_t timer_id, subtimer_t timer_subtimer, uint32_t timer_configuration, reload_t timer_load_val, uint32_t timer_interrupt, bool timer_start=false)
virtual void	start ()
virtual void	stop ()
virtual uint32_t	ack ()
virtual uint32_t	get ()
const subtimer_t	get_subtimer ()
const uint32_t	get_base ()
void	reload (void)
void	load (uint32_t load_value)
Public Member Functions inherited from interruptable
	interruptable ()

Private Attributes
timer_t	id
uint32_t	base
subtimer_t	subtimer
reload_t	reload_value
uint32_t	configuration
uint32_t	interrupt

Detailed Description

Definition at line 26 of file timerpp.hpp.

Constructor & Destructor Documentation

timer::timer

(

)

Definition at line 10 of file timerpp.cpp.

{}

timer::timer	(	timer_t	timer_id,
		subtimer_t	timer_subtimer,
		uint32_t	timer_configuration,
		reload_t	timer_load_val,
		uint32_t	timer_interrupt,
		bool	timer_start = false
	)

Definition at line 12 of file timerpp.cpp.

References base, configuration, interrupt, reload(), reload_value, start(), and subtimer.

                                                         {

    id = timer_id;
    base = TIMER0_BASE + 0x1000 * timer_id;
    subtimer = timer_subtimer;
    reload_value = timer_load_val;
    configuration = timer_configuration;
    interrupt = timer_interrupt;

    SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER0 + id);
    TimerConfigure(base, configuration);

    switch(subtimer) {
    case TIMER_A:
    case TIMER_BOTH:
        IntEnable(INT_TIMER0A + id*2);
        break;
    case TIMER_B:
        IntEnable(INT_TIMER0A + id*2 + 1);
        break;
    default:
        while (1) {}
    }

    reload();
    if (timer_start) { start(); }
}

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Member Function Documentation

uint32_t timer::ack ( void  )

virtual

Acknowledge an interrupt. Clears the interrupt bits for this timer.

Implements interruptable.

Definition at line 74 of file timerpp.cpp.

References base, and subtimer.

Referenced by lswitch::end_debounce(), ping::handle_timer(), Timer0A_Handler(), Timer1A_Handler(), and Timer2A_Handler().

                    {

    switch(subtimer) {
    case TIMER_A:
    case TIMER_BOTH:
        TimerIntClear(base, INT_TIMER0A + id*2);
        break;
    case TIMER_B:
        TimerIntClear(base, INT_TIMER0A + id*2 + 1);
        break;
    default:
        while (1) {}
    }
    return 0xDEADBEEF;
}

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uint32_t timer::get ( void  )

virtual

Definition at line 90 of file timerpp.cpp.

References base, and subtimer.

Referenced by ping::handle_gpio().

                    {

    switch(subtimer) {
    case TIMER_A:
    case TIMER_BOTH:
        TimerValueGet(base, TIMER_A);
        break;
    case TIMER_B:
        TimerValueGet(base, TIMER_B);
        break;
    default:
        while (1) {}
    }
}

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const uint32_t timer::get_base

(

)

Definition at line 109 of file timerpp.cpp.

References base.

Referenced by adc::configure_timer_interrupt().

                               {
    return base;
}

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const subtimer_t timer::get_subtimer

(

)

Definition at line 105 of file timerpp.cpp.

References subtimer.

Referenced by adc::configure_timer_interrupt().

                                     {
    return subtimer;
}

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void timer::load

(

uint32_t

load_value

)

Definition at line 47 of file timerpp.cpp.

References base, and subtimer.

Referenced by ping::handle_gpio(), and reload().

                                    {

    switch(subtimer) {
    case TIMER_A:
    case TIMER_BOTH:
        TimerLoadSet(base, TIMER_A, load_value);
        break;
    case TIMER_B:
        TimerLoadSet(base, TIMER_B, load_value);
        break;
    default:
        while (1) {}
    }
}

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void timer::reload

(

void

)

Reload the timer with the initial reload value

Definition at line 42 of file timerpp.cpp.

References load(), and reload_value.

Referenced by ping::handle_gpio(), and timer().

                   {

    load(reload_value);
}

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void timer::start ( void  )

virtual

Start a timer.

Implements interruptable.

Definition at line 62 of file timerpp.cpp.

References base, interrupt, and subtimer.

Referenced by lswitch::debounce(), ping::handle_gpio(), and timer().

                  {

    TimerIntEnable(base, interrupt);
    TimerEnable(base, subtimer);
}

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void timer::stop ( void  )

virtual

Stop a timer.

Implements interruptable.

Definition at line 68 of file timerpp.cpp.

References base, interrupt, and subtimer.

                 {

    TimerIntDisable(base, interrupt);
    TimerDisable(base, subtimer);
}

Member Data Documentation

uint32_t timer::base

private

The base address of the specified timer

Definition at line 32 of file timerpp.hpp.

Referenced by ack(), get(), get_base(), load(), start(), stop(), and timer().

uint32_t timer::configuration

private

The configuration bitset for the timer

Note

Reference timer.h for possible options (e.g. TIMER_CFG_PERIODIC)

Definition at line 42 of file timerpp.hpp.

Referenced by timer().

timer_t timer::id

private

Defined between 0 to 4, where 0 indicates TIMER0

Definition at line 29 of file timerpp.hpp.

uint32_t timer::interrupt

private

The timer interrupt to be acknowdeged, enabled, disabled

Note

Reference timer.h for possible options (e.g. TIMER_TIMA_TIMEOUT)

Definition at line 46 of file timerpp.hpp.

Referenced by start(), stop(), and timer().

reload_t timer::reload_value

private

The reload value for the timer

Definition at line 38 of file timerpp.hpp.

Referenced by reload(), and timer().

subtimer_t timer::subtimer

private

TIMER_A, TIMER_B, or TIMER_BOTH

Definition at line 35 of file timerpp.hpp.

Referenced by ack(), get(), get_subtimer(), load(), start(), stop(), and timer().

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

• board-progs/autonomous-racer/common/timerpp.hpp
• board-progs/autonomous-racer/common/timerpp.cpp