#include "AT91SAM7S128.h"

void timer_tick10ms(void) __attribute__ ((interrupt)); // забыл вставить, но в моей проге это было и есть

void timer_tick10ms(void)
{
   unsigned int temp;

   AT91C_BASE_AIC->AIC_IDCR = (1<<AT91C_ID_TC0);
   temp=AT91C_BASE_TC0->TC_SR;
   led_tgl();
   AT91C_BASE_AIC->AIC_ICCR = (1<<AT91C_ID_TC0);
   AT91C_BASE_TC0->TC_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG;//перезапуск таймера
   AT91C_BASE_AIC->AIC_IECR = (1<<AT91C_ID_TC0);
   AT91C_BASE_AIC->AIC_EOICR = 0;//(1<<AT91C_ID_TC0);
}

void init_timer( void )
{
  AT91C_BASE_TCB->TCB_BCR = 1;
  AT91C_BASE_TCB->TCB_BMR = 0x15;
  AT91C_BASE_TC0->TC_CMR = (1 << 15) | (2<<13) | 1;//4
  AT91C_BASE_TC0->TC_RC = 0x1;
  //AT91C_BASE_TC0->TC_IDR = 0xFFFFFFFF;

  AT91C_BASE_TC0->TC_IDR &= ~((long)AT91C_TC_CPCS);
  AT91C_BASE_TC0->TC_IER |= AT91C_TC_CPCS;
  *AT91C_AIC_ICCR = (1<<AT91C_ID_TC0);

  AT91C_BASE_AIC->AIC_ICCR = 0xFFFFFFFF;
  AT91C_BASE_AIC->AIC_EOICR = 0;//*/

  AT91C_BASE_AIC->AIC_SVR[AT91C_ID_TC0] = (unsigned long)timer_tick10ms;
  AT91C_BASE_AIC->AIC_SMR[AT91C_ID_TC0] =  (1 << 5) | 0x7;

  AT91C_BASE_AIC->AIC_IDCR &= ~(1<<AT91C_ID_TC0);
  AT91C_BASE_AIC->AIC_IECR |= (1<<AT91C_ID_TC0);
  //AT91C_BASE_AIC->AIC_ISCR = (1<<AT91C_ID_TC0);
  ctl_global_interrupts_enable();
   //*/

  AT91C_BASE_PMC->PMC_PCER |= (1<<AT91C_ID_TC0);
  AT91C_BASE_TC0->TC_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG;//запуск таймера
}

int init( void )
{
  int i;
  AT91PS_PMC pPMC = AT91C_BASE_PMC;
  AT91C_BASE_WDTC->WDTC_WDMR = AT91C_WDTC_WDDIS;
  pPMC->PMC_MOR = 1;//(( AT91C_CKGR_OSCOUNT & (0x06 <<8) | AT91C_CKGR_MOSCEN ));
  // Wait the startup time
  while(!(pPMC->PMC_SR & AT91C_PMC_MOSCS));

  pPMC->PMC_PLLR = ((AT91C_CKGR_DIV & 14) | (AT91C_CKGR_PLLCOUNT & (10<<8)) |    (AT91C_CKGR_MUL & (72<<16)));
  // Wait the startup time (until PMC Status register LOCK bit is set)
  while(!(pPMC->PMC_SR & AT91C_PMC_LOCK));

  pPMC->PMC_MCKR = AT91C_PMC_PRES_CLK_2 | 1;
  while(!(pPMC->PMC_SR & AT91C_PMC_MCKRDY));

  pPMC->PMC_MCKR |= AT91C_PMC_CSS_PLL_CLK;
  while(!(pPMC->PMC_SR & AT91C_PMC_MCKRDY));

  //*******************
  i=AT91C_PMC_PCK0 | AT91C_PMC_PCK;
  *AT91C_PMC_SCER = i;
  *AT91C_PMC_SCDR = ~i;

  pPMC->PMC_PCKR[0]=0x00000015;
  while( !(pPMC->PMC_SR & AT91C_PMC_PCK0RDY) );

  //**************************************************
  pPMC->PMC_IER=0xffffffff;
  pPMC->PMC_SCER=0xffffffff;

  i=(1 << AT91C_ID_PIOB) | (1 << AT91C_ID_US1);
  pPMC->PMC_PCER = i;
  pPMC->PMC_PCDR = ~i;
  //**************************************************

  volatile AT91PS_PIO pPIO = AT91C_BASE_PIOB; // pointer to PIO data structure

  pPIO->PIO_OWER = LED_MASK | PB20_PIN_MASK;
  pPIO->PIO_PER = LED_MASK | PB20_PIN_MASK;
  pPIO->PIO_PPUDR = LED_MASK | PB20_PIN_MASK; //disabele pull-up on PB19
  pPIO->PIO_OER = LED_MASK | PB20_PIN_MASK; //enable output on PB19
  pPIO->PIO_CODR = LED_MASK | PB20_PIN_MASK;
  pPIO->PIO_ASR=0;
  pPIO->PIO_BSR=0;    
    
  init_timer();

  return 0;
}

int main( void ) //************************* M A I N ******************************
{

  init();
  led_off();

  while(1)  //********************** W H I L E ******************************
  {
    //;
    /*if( (AT91C_BASE_TC0->TC_SR & AT91C_TC_CPCS) )
//если постоянно читать флаг , все работает как нуно( переключение сигнала с нужным переудом)
     {
       led_tgl();
       *AT91C_AIC_ICCR = 0;//AT91C_TC_CPCS;
       AT91C_BASE_TC0->TC_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG;//перезапуск таймера
      }//*/
  }//while 1

  return -1;
}

void timer_tick10ms(void)

void timer_tick10ms(void) __attribute__ ((interrupt));

AT91C_BASE_AIC->AIC_IECR = (0x01 << AT91C_ID_TC0);