Receive interrupt in UART in MSP430F2274

I tried to receive and transmit data using UART . I was able to transmit data but when i type characters on hyperterminal . It is not getting displayed . Can anyone tell me the problem in my code

#include "target.h"
extern void (*buttonIsr)(void);
void handleButtonPress(void);
int main( void )
{
clockinit();
uartinit();
buttonIsr = &handleButtonPress;
HAL_ENABLE_INTERRUPTS(); //Enable Interrupts
while (1)
{
toggleLed(0);
delayMs(1000);
}
}

void handleButtonPress(void)
{
toggleLed(1);
sendstring("\nLight Toggled");
}

#pragma vector=USCIAB0RX_VECTOR
__interrupt void USCI0RX_ISR(void)
{
while (!(IFG2&UCA0TXIFG)); // USCI_A0 TX buffer ready?
UCA0TXBUF = UCA0RXBUF; // TX -> RXed character
}

clock.c

//Initiate the clock
#include "target.h"
void (*buttonIsr)(void);
void (*debugConsoleIsr)(char);
void clockinit()
{
WDTCTL = WDTPW + WDTHOLD; // Stop WDT
if (CALBC1_8MHZ ==0xFF || CALDCO_8MHZ == 0xFF)
{
while(1); // Stop if calibration constants erased
}
BCSCTL1 = CALBC1_8MHZ; // Set DCO = 8MHz for MCLK
DCOCTL = CALDCO_8MHZ;
BCSCTL2 |= DIVS_1; //SMCLK = DCO/2 (4MHz)
BCSCTL3 |= LFXT1S_2; // Use VLO for ACLK
/*PORT 1:
1.0 LED 1
1.1 LED 2
1.2 Button - connects to GND when closed
1.3 Accelerometer Interrupt
1.4
1.5
1.6
1.7
*/
P1DIR = BIT0+BIT1;
P1OUT &= ~BIT2;
P1IE = BIT2; //Enable Button Interrupt
P1IES = BIT2; //Interrupt on high-to-low transition
P1REN = BIT2; //enable resistor for button
P1OUT = BIT2; //make resistor a PULL-UP
P1SEL = 0; //NOTE: default value is NOT 0!
P1IFG = 0;
}

//UART initiation function
void uartinit()
{
P3SEL = (BIT4+BIT5); //select pin and port3.4and5
//ME1|=UTXE0+URXE0;

UCA0CTL1 |= UCSSEL_2;
UCA0BR0 = 26; UCA0BR1 = 0;
UCA0MCTL = UCBRS_0 + +UCBRF_1 + UCOS16; // Modulation UCBRSx=1, over sampling
UCA0CTL1 &= ~UCSWRST; // **Initialize USCI state machine**
IE2 |= UCA0RXIE;// Enable USCI_A0 RX interrupt
//IE2_bit=UCA0RXIE
}

signed int toggleLed(unsigned char led)
{
if (led > 1)
return -1;
P1OUT ^= (1 << led);
return 0;
}

void delayMs(unsigned int ms)
{
unsigned int a, b;
for (a = ms; a > 0; a--) // outer loop takes 5 ck per round
for (b = TICKS_PER_MS; b > 0; b--) // inner loop takes 5 ck per round
asm("nop");
}

//send strings through UART
void sendstring( char *str)
{
int i=0;
for(i=0;i< strlen(str); i++)
{
while (!(IFG2 & UCA0TXIFG));
UCA0TXBUF=str;
//toggleLed(1);
}
}

#pragma vector=PORT1_VECTOR
__interrupt void PORT1_ISR(void)
{
if (P1IFG & BIT2)
buttonIsr();

if (P1IFG & BIT3)
{
//accelerometerIsr();
// if (wakeupFlags & WAKEUP_AFTER_ACCELEROMETER)
//HAL_WAKEUP();
}
P1IFG = 0; // clear the interrupt
}

//Transmit UART

#pragma vector=USCIAB0RX_VECTOR
__interrupt void USCI0RX_ISR(void)
{
while (!(IFG2&UCA0TXIFG)); // USCI_A0 TX buffer ready?
UCA0TXBUF = UCA0RXBUF; // TX -> RXed character
}