# include <AT91SAM7X256.H>
unsigned int ram[];
void timer0_irq_handler(void)
{
unsigned int k=0;
if((AT91C_BASE_TC0->TC_SR&0x20)==0x20)
{
ram[k]=AT91C_BASE_TC0->TC_RA;
}
else
{
ram[k]=*AT91C_TC0_RB;
}
k=k+1;
}
int main (void) {
*AT91C_WDTC_WDMR=1<<15;
*AT91C_RSTC_RMR=0XA5000001;
//------------------------------------------
*AT91C_CKGR_MOR=0XF01; // Oscillator USED EXTERNAL CRYSTAL(01)
*AT91C_CKGR_PLLR=0X2903FFC; // F0*656(290)/252(FC) =48 MHZ
//--------------------------------------------------------------------------
*AT91C_PMC_SCER=1; //ENABLE CLOCK MICRO
*AT91C_PMC_MCKR=3; //USED FROM PLL CLOCK
*AT91C_PMC_PCER=1<<12; //ENABLE CLOCK TIMER0
//--------------------------------------------- ------------------------
*AT91C_PIOB_PDR = 1<<23; // DISABLE PORTB.23 AS OUT/IN PUT AND READY AS PIOA0=PORT B.23
*AT91C_PIOB_MDER = 1<<23; // PORT IS OPEN DRAIN
*AT91C_PIOB_ASR=1<<23; //PRIPHERAL A ENABLE & PIOA0 IS PERIPHERAL A
//------------------------------------------
*AT91C_TC0_IER=3<<5; //INTTRUPT LOAD RA & LOAD RB
while ((*AT91C_PIOB_PDSR&0X800000)); //UNTILE PB23 IS 1 IT'S HERE
*AT91C_TC0_CCR = 5<<0; //TIMER ENABLE & START
*AT91C_TC0_CMR=1<<2 | 0<<15 | 1<<16 | 1<<19; // CLK/1024 ;CAPTURE ENABLE ; RA LOAD AT HIGH & RB LOAD AT LOW
AT91C_BASE_AIC->AIC_SVR[AT91C_ID_TC0]=(unsigned int)timer0_irq_handler;
AT91C_BASE_AIC->AIC_SMR[AT91C_ID_TC0]=0X7;
AT91C_BASE_AIC->AIC_ICCR=1<<AT91C_ID_TC0;
AT91C_BASE_AIC->AIC_IECR=(1<<AT91C_ID_TC0);
while(1){
}
}
void TC_irq_handler(void) __irq
{
int Status;
Status = AT91C_BASE_TC1->TC_SR;
Status = Status;
//AT91C_BASE_TC1->TC_IER = AT91C_TC_CPCS;
AT91F_AIC_AcknowledgeIt(AT91C_BASE_AIC);
//* get Usart status register
}
//533 with RTPRES=0x8000 is equal to 10 minute
int main (void)
{
AT91C_BASE_TC1->TC_IER = AT91C_TC_CPCS | AT91C_TC_COVFS;
AT91F_AIC_ConfigureIt(AT91C_BASE_AIC,AT91C_ID_TC1,4,AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL,TC_irq_handler);
AT91F_AIC_EnableIt(AT91C_BASE_AIC,AT91C_ID_TC1);
*AT91C_TC0_CCR = 5<<0;
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