MSP430F249: UART interrupt not working

Part Number: MSP430F249

hello!

pls help a stupid student...

i am trying to get my msp430f249 work with uart,

it prints but dosent react to input(no eco)

i put a stop sign in the interrupt and its not triggering

cant understand why.

here is the code  

thanks for the help!!!

#include <msp430.h>
#include <stdio.h>
#include "msp430f249.h"


void InitUART0 (void)                           //UART0 init
{

   //input_data=P3IN;          //Read only register
  P3OUT = 0x00;               // The outputs are low
  P3SEL = 0x30;               // Peripheral module function: enabled for UTXD0 and URXD0
  P3DIR = 0x10;               // 1 -> Output; 0 -> Input; UTXD0 output P3.4 TX
  P3REN = 0x00;               // Pullup/pulldown resistor disabled


  UCA0CTL1 |= 0x01;  // 1) Set UCSWRST
  // 2) Initialize all USCI registers with UCSWRST = 1 (including UCAxCTL1)
  UCA0CTL0 = 0x00;  // 0x40 -> MSB first
  UCA0CTL1 = 0x41;
  UCA0BR1 = 0x00;   // N = 32768/9600 = 3.413333
  UCA0BR0 = 0x03;   // Write integer portion of the divisor "N", i.e. UCBRx = INT(N) = 3
  UCA0MCTL = 0x08;  // UCBRSx = round( ( N - INT(N) ) * 8 ) =   4

  UCA0CTL1 &= ~0x01;
  // 5) Enable interrupts (optional)
  IE2 |= 0x01;      // USCI_A0 receive interrupt enable
  IFG2 &= ~0x01;    // Clear UCA0 RXIFG

  __bis_SR_register(GIE);
 // for (int i=10; i; i--);  // short delay
}

void UART_transmit(unsigned char Data)
{
  while(UCA0STAT & 0x01);   // Check USCI busy flag
  UCA0TXBUF = Data;
}

void UART0SendTxt(char* a)
{
   for(;*a;++a) UART_transmit(*a);
}

#pragma vector=USCIAB0RX_VECTOR
__interrupt void USCI0RX_ISR(void)
{
  UART_transmit (UCA0RXBUF+1);                  //transmit Echo + 1
}


int main( void )
{
  // Stop watchdog timer to prevent time out reset


     WDTCTL = WDTPW + WDTHOLD;

  InitUART0 ();

  UART0SendTxt("\r\nhttps://www.olimex.com/");
  UART0SendTxt("\r\nPress any key to return echo (next ASCII symbol)\r\n");
  while (1);
}