portable/IAR/AVR_Mega0/porthardware.h

#ifndef PORTHARDWARE_H
#define PORTHARDWARE_H

#include <ioavr.h>
#include "FreeRTOSConfig.h"

/*-----------------------------------------------------------*/

#if ( configUSE_TIMER_INSTANCE == 0 )

    #define TICK_INT_vect    TCB0_INT_vect
    #define INT_FLAGS        TCB0_INTFLAGS
    #define INT_MASK         TCB_CAPT_bm

    #define TICK_init()                                      \
    {                                                        \
        TCB0.CCMP = configCPU_CLOCK_HZ / configTICK_RATE_HZ; \
        TCB0.INTCTRL = TCB_CAPT_bm;                          \
        TCB0.CTRLA = TCB_ENABLE_bm;                          \
    }

#elif ( configUSE_TIMER_INSTANCE == 1 )

    #define TICK_INT_vect    TCB1_INT_vect
    #define INT_FLAGS        TCB1_INTFLAGS
    #define INT_MASK         TCB_CAPT_bm

    #define TICK_init()                                      \
    {                                                        \
        TCB1.CCMP = configCPU_CLOCK_HZ / configTICK_RATE_HZ; \
        TCB1.INTCTRL = TCB_CAPT_bm;                          \
        TCB1.CTRLA = TCB_ENABLE_bm;                          \
    }

#elif ( configUSE_TIMER_INSTANCE == 2 )

    #define TICK_INT_vect    TCB2_INT_vect
    #define INT_FLAGS        TCB2_INTFLAGS
    #define INT_MASK         TCB_CAPT_bm

    #define TICK_init()                                      \
    {                                                        \
        TCB2.CCMP = configCPU_CLOCK_HZ / configTICK_RATE_HZ; \
        TCB2.INTCTRL = TCB_CAPT_bm;                          \
        TCB2.CTRLA = TCB_ENABLE_bm;                          \
    }

#elif ( configUSE_TIMER_INSTANCE == 3 )

    #define TICK_INT_vect    TCB3_INT_vect
    #define INT_FLAGS        TCB3_INTFLAGS
    #define INT_MASK         TCB_CAPT_bm

    #define TICK_init()                                      \
    {                                                        \
        TCB3.CCMP = configCPU_CLOCK_HZ / configTICK_RATE_HZ; \
        TCB3.INTCTRL = TCB_CAPT_bm;                          \
        TCB3.CTRLA = TCB_ENABLE_bm;                          \
    }

#elif ( configUSE_TIMER_INSTANCE == 4 )

    #define TICK_INT_vect    RTC_CNT_vect
    #define INT_FLAGS        RTC_INTFLAGS
    #define INT_MASK         RTC_OVF_bm

/* Hertz to period for RTC setup */
    #define RTC_PERIOD_HZ( x )    ( 32768 * ( ( 1.0 / x ) ) )
    #define TICK_init()                                        \
    {                                                          \
        while( RTC.STATUS > 0 ) {; }                           \
        RTC.CTRLA = RTC_PRESCALER_DIV1_gc | 1 << RTC_RTCEN_bp; \
        RTC.PER = RTC_PERIOD_HZ( configTICK_RATE_HZ );         \
        RTC.INTCTRL |= 1 << RTC_OVF_bp;                        \
    }

#else /* if ( configUSE_TIMER_INSTANCE == 0 ) */
    #undef TICK_INT_vect
    #undef INT_FLAGS
    #undef INT_MASK
    #undef TICK_init()
    #error Invalid timer setting.
#endif /* if ( configUSE_TIMER_INSTANCE == 0 ) */

/*-----------------------------------------------------------*/

#endif /* PORTHARDWARE_H */