#include <io430x12x2.h>

unsigned int speed=0;

void main(void)
{
  init_PORTS();
  init_TA();
  __enable_interrupt();
  
  for (;;) {

    itoa1(speed); // int to char
    display(); // динамическая индикация
    
  }
}

#pragma vector=TIMERA0_VECTOR
__interrupt void TimerA0(void)
{
  speed = TACCR0;
}

void init_PORTS(void)
{
  P1DIR = 0xFF; // 0 - input; 1 - output
  P1OUT = 0xFF; // 0 - low; 1 - high
  P1SEL = 0x00; // 0 - i/o; 1 - function
  
  P2DIR = 0x00;
  P2OUT = 0x00;
  P2SEL = 0x0C; // P2.2 P2.3 - capture
  
  P3DIR = 0x0E;
  P3OUT = 0x00;
  P3SEL = 0x00;
}

void init_TA(void)
{
  TACCTL0 = CM_2 + SCS + CCIS_1 + CAP + CCIE; // задний фронт, синхронный захват, вход CCIxB, захват, прерывание
  TACTL = TASSEL_2 + MC_2;                  // SMCLK + Continuous Mode
}

TACCTL0^=CCIS0;
TACCTL0^=CCIS0;

speed = TACCR0;

void init_XT(void) // high frequenz resonators ( 455 kHz - 8MhZ )
{
  unsigned int i;
  WDTCTL = WDTPW + WDTHOLD;             // Stop WDT
  BCSCTL1 |= XTS;                       // ACLK = LFXT1 = HF XTAL
  do
  {
    IFG1 &= ~OFIFG;                     // Clear OSCFault flag
    for (i = 0xFF; i > 0; i--);         // Time for flag to set
  }
  while ((IFG1 & OFIFG) == OFIFG);      // OSCFault flag still set?                
  BCSCTL2 |= SELM_3 + SELS;             // MCLK = LFXT1 (safe), SMCLK = LFXT1CLK
}

void init_TA(void)
{
  TACTL = TASSEL_1 + ID_3 + MC_2 + TACLR;           // ACLK + Continuous Mode
  TACCTL0 = CM_2 + SCS + CCIS_1 + CAP + CCIE; //  CCIxB + Capture Mode + Interrupt
  TACCTL1 = CM_2 + SCS + CCIS_1 + CAP + CCIE; //  CCIxB + Capture Mode + Interrupt
}

#pragma vector=TIMERA0_VECTOR
__interrupt void TimerA0(void)
{
  speed = TACCR0;
}

#pragma vector=TIMERA1_VECTOR
__interrupt void TimerA1 (void)
{
  speed = TACCR1;
}

#pragma vector=TIMERA1_VECTOR
__interrupt void TimerA1 (void)
{ switch(TAIV)
   { case 0x02:
        speed = TACCR1;
        break;
      case 0x04:
      case 0x0A:
      default:
        break;
   }
}