#include <msp430G2553.h>
#define LED0 BIT0
unsigned int value;
void ConfigureADC(void)
{
   ADC10CTL1 = INCH_5 + ADC10DIV_2; // 5ti kanal na ADC-to + ADC10 Clock Divider Select Bit: 2 //
   ADC10CTL0 = SREF_0 + ADC10SHT_3 + ADC10ON + ADC10IE; // Vcc + Vss as reff voltage (ADC10 Reference Select Bit: 0 +64 x ADC10CLKs
   // + ADC10 On/Enable  + ADC10IE //
   ADC10AE0 |= BIT5; // Analog enable//
}
int main(void) {
    WDTCTL = WDTPW | WDTHOLD;   // Stop watchdog timer
   BCSCTL1 = CALBC1_1MHZ; // calibrates
   DCOCTL    = CALDCO_1MHZ; // calibrates
   BCSCTL2 &= ~(DIVS_3);  // SMCLK = DCO = 1MHZ
   P1DIR |= BIT0; // P1.0 output P1.5 input
   P1SEL |= BIT5;  // ADC input pin 1.5
   P1OUT &= ~(LED0);
      ConfigureADC();
      __enable_interrupt();
   while(1)
   {
      __delay_cycles(1000); // ADC Ref to settle
      ADC10CTL0 |= ENC + ADC10SC; // conversation start
//      __bis_SR_register(CPUOFF + GIE); // LPM0 with interruts
      value = ADC10MEM;
  if (value > 511);
{
   P1OUT &= ~(LED0);
   P1OUT |= LED0;
      }
   }
}
//ADC10 ISR
#pragma vector=ADC10_VECTOR
__interrupt void ADC10_ISR(void)
{
__bis_SR_register_on_exit(CPUOFF);
}

if (value > 511);
{
   P1OUT &= ~(LED0);
   P1OUT |= LED0;
      }