void main (void)
{
AT91F_PMC_EnablePeriphClock ( AT91C_BASE_PMC, 1 << AT91C_ID_PIOA );
AT91F_PIO_CfgOutput( AT91C_BASE_PIOA, LED_MASK );
AT91F_PIO_SetOutput( AT91C_BASE_PIOA, LED_MASK );
AT91F_PIO_CfgInput(AT91C_BASE_PIOA, SW3_MASK | SW4_MASK);


AT91F_AIC_ConfigureIt ( pAic, AT91C_ID_PIOA, PIO_INTERRUPT_LEVEL,AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL, pio_c_irq_handler);
AT91F_PIO_InterruptEnable(AT91C_BASE_PIOA,SW4_MASK);
//* set the interrupt by software
AT91F_AIC_EnableIt (pAic, AT91C_ID_PIOA);

for (;;)
{}
}


// обработчик

void pio_c_irq_handler ( void )
{
int dummy;
count_int_pio++;

    
    AT91F_PIO_ClearOutput( AT91C_BASE_PIOA, LED2);
    delay_t (2000000);
    AT91F_PIO_SetOutput( AT91C_BASE_PIOA, LED2);
    delay_t (2000000);
  
    dummy =AT91C_BASE_PIOA->PIO_ISR;
    


}

#pragma vector = 0x18
__irq __arm void IRQ_Switch() {
    void (*Handler)() = (void(*)())AT91C_BASE_AIC->AIC_IVR;
    Handler();
    AT91C_BASE_AIC->AIC_EOICR = 0;                    // Reset AIC logic
}

void pio_c_irq_handler ( void )
{
int dummy;

  

    count_int_pio++;

    
    
    AT91F_PIO_ClearOutput( AT91C_BASE_PIOA, LED2);
    delay_t (2000000);
    AT91F_PIO_SetOutput( AT91C_BASE_PIOA, LED2);
    delay_t (2000000);
  
    dummy =AT91C_BASE_PIOA->PIO_ISR;
    dummy=AT91C_BASE_AIC->AIC_ISR;
    dummy=AT91C_BASE_AIC->AIC_IECR;  

}




void main( void )

{


       AT91F_PMC_EnablePeriphClock ( AT91C_BASE_PMC, 1 << AT91C_ID_PIOA );
        
       AT91F_PIO_CfgOutput( AT91C_BASE_PIOA, LED_MASK );
       AT91F_PIO_SetOutput( AT91C_BASE_PIOA, LED_MASK );

    

       AT91F_PIO_CfgInput(AT91C_BASE_PIOA, SW4_MASK);
    
       AT91F_AIC_ConfigureIt ( AT91C_BASE_AIC, AT91C_ID_PIOA,PIO_INTERRUPT_LEVEL,            AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL, pio_c_irq_handler);
    
        AT91C_BASE_AIC->AIC_EOICR = 0;
        
        __enable_interrupt();
        
        AT91F_PIO_InterruptEnable(AT91C_BASE_PIOA,SW4_MASK);
    
       AT91F_AIC_EnableIt (pAic, AT91C_ID_PIOA);  
      


for (;;)
    {

    }


}

IRQ_Handler_Entry:
  00000090  E24EE004  SUB          LR, LR, #0x4
  00000094  E92D4000  STMDB        SP!, {LR}
  00000098  E14FE000  MRS          LR, SPSR
  0000009C  E92D4000  STMDB        SP!, {LR}
  000000A0  E92D0001  STMDB        SP!, {R0}
  000000A4  E59FE048  LDR          LR, [PC, #+72]          ; [_?2 (0xF4)] =AIC_SMR (0xFFFFF000)
  000000A8  E59E0100  LDR          R0, [LR, #+256]
  000000AC  E58EE100  STR          LR, [LR, #+256]
  000000B0  E321F013  MSR          CPSR_c, #0x13
  000000B4  E92D500E  STMDB        SP!, {R1,R2,R3,R12,LR}
  000000B8  E1A0E00F  MOV          LR, PC
  000000BC  E12FFF10  BX           R0
  000000C0  E8BD500E  LDMIA        SP!, {R1,R2,R3,R12,LR}
  000000C4  E321F092  MSR          CPSR_c, #0x92
  000000C8  E59FE024  LDR          LR, [PC, #+36]          ; [_?2 (0xF4)] =AIC_SMR (0xFFFFF000)
  000000CC  E58EE130  STR          LR, [LR, #+304]
  000000D0  E8BD0001  LDMIA        SP!, {R0}
  000000D4  E8BD4000  LDMIA        SP!, {LR}
  000000D8  E16FF00E  MSR          SPSR_cxsf, LR
  000000DC  E8FD8000  LDMIA        SP!, {PC}^
AT91F_Default_FIQ_handler:
  000000E0  EAFFFFFE  B            AT91F_Default_FIQ_handler; 0xE0
AT91F_Default_IRQ_handler:
  000000E4  EAFFFFFE  B            AT91F_Default_IRQ_handler; 0xE4

void CMX_init()
{
    AT91C_BASE_PIOA->PIO_IER = (1UL<<19);    // FFSK_CLK
    // AIC
    AT91C_BASE_AIC->AIC_SMR[AT91C_ID_PIOA] = AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL | AT91C_AIC_PRIOR_LOWEST + 1;
    AT91C_BASE_AIC->AIC_SVR[AT91C_ID_PIOA] = (uint32_t)CMX469_Int_Handler;

    AT91C_BASE_AIC->AIC_IECR = (1<<AT91C_ID_PIOA);    // enable ints
}


OS_INTERRUPT void CMX469_Int_Handler()
{
    OS::TISRW ISR;
    if(AT91C_BASE_PIOA->PIO_ISR & (1<<19))
    {
        FFSK_modem.put(signal(FFSK_DATA), ADC.RSSI());
    }
    AT91C_BASE_AIC->AIC_EOICR = 0;            // Reset AIC logic
}