Compiler/MSP430G2553: Problem with interrupts

Tool/software: TI C/C++ Compiler

Hello everyone,

I have MSP430G2553 LaunchPad and I have problem with interrupts.

I wanted to write simple program which would blink leds with ~12,5Hz frequency, and with button, which would enable/disable blinking. Both features would use interrupts. I wrote simple code, but it goes forever after entering TIMER0_A1_VECTOR. Could you help me? Thanks in advance, there is the code:

#include <msp430g2553.h>


void main(void)
{
    WDTCTL = WDTPW + WDTHOLD; 			// Stop watchdog timer
    P1DIR |= BIT0 + BIT6;			// P1.1 + P1.6 diodes
    P1DIR &= ~BIT3;				// P1.3 switch
    P1OUT |= BIT0 + BIT6; 			// diodes on

    P1REN |= BIT3;				// resistor on P1.3
    P1OUT |= BIT3;				// pull up

    P1IE |= BIT3; 				// P1.3 interrupt enable
    P1IES |= BIT3; 				// high to low edge
    P1IFG &= ~BIT3; 				// interrupt flag clear

    //TIMER A
    TACTL = TASSEL_2 + MC_1 + ID_3 + TAIE;	// TAIE activates interrupts, TASSEL_2 SMCLK - 1MHz, MC_1 UP mode, ID_3 1MHz/8 = 125kHz

    //TIMER 0
    TA0CCR0 = 50000;				// 125kHz / 50000 = 2.5Hz -> 400ms
    TA0CCTL0 = CCIE;				// TA0CCR0 interrupt activated

    _BIS_SR(LPM0_bits + GIE); 			// enters LPM0 with interrupt enable

}


#pragma vector=TIMER0_A0_VECTOR			// timer interrupt
__interrupt void Timer_A (void)

{
  P1OUT ^= BIT0 + BIT6;				// toggle diodes
}


#pragma vector=TIMER0_A1_VECTOR			// timer interrupt
__interrupt void Timer_AA (void)

{
  P1OUT ^= BIT0 + BIT6;				// toggle diodes
}


#pragma vector=PORT1_VECTOR			// switch interrupt
__interrupt void Port_1(void)
{
    CCTL0 ^= CCIE;				// toggle CCTL0 interrupt enabled
    P1OUT ^= BIT0 + BIT6;
    P1IFG &= ~BIT3; 				// interrupt flag clear
}