MSP430F5438 USCI_A0, 9600 UART, SMCLK, LPM0, Echo with over-sampling Example

Hi,

I tried to run MSP430x54x_uscia0_uart_04.c from Slac227 from TI website
At the Readme file this source is described as USCI_A0, 9600 UART, SMCLK, LPM0, Echo with over-sampling.
I made some changes, like turning on a LED and the LCD Display, however if I use the funtion halLcdClearScreen() and download the code in MSP430F5438, the debugger starts and it never comes the green highlighting on the code. It is like it^s running but you can't debug. By simple removing halLcdClearScreen(), it works again. Does anyone know what is wrong? The same happens with halLcdSetContrast(70) and halLcdPrintXY("test", 0,0,0);

#include "msp430x54x.h"
#include "MSP-EXP430F5438 HAL\hal_MSP-EXP430F5438.h"

void main(void)
{

    //Initialize clock and peripherals
  halBoardInit(); 
 
  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
  P3SEL = 0x30;                             // P3.4,5 = USCI_A0 TXD/RXD
  UCA0CTL1 |= UCSWRST;                      // **Put state machine in reset**
  UCA0CTL1 |= UCSSEL_2;                     // SMCLK
  UCA0BR0 = 6;                              // 1MHz 9600 (see User's Guide)
  UCA0BR1 = 0;                              // 1MHz 9600
  UCA0MCTL = UCBRS_0 + UCBRF_13 + UCOS16;   // Modln UCBRSx=0, UCBRFx=0,
                                            // over sampling
  UCA0CTL1 &= ~UCSWRST;                     // **Initialize USCI state machine**
  UCA0IE |= UCRXIE;                         // Enable USCI_A0 RX interrupt
 
  LED_PORT_OUT ^= LED_1;
  halLcdInit();
  halLcdBackLightInit();
  halLcdSetBackLight(200);
  //halLcdSetContrast(70);
  //halLcdClearScreen();

  __bis_SR_register(LPM0_bits + GIE);       // Enter LPM0, interrupts enabled
  __no_operation();                         // For debugger
 
  halLcdClearScreen();
    //halLcdPrintXY("test", 0,0,0);
}

// Echo back RXed character, confirm TX buffer is ready first
#pragma vector=USCI_A0_VECTOR
__interrupt void USCI_A0_ISR(void)
{
  switch(__even_in_range(UCA0IV,4))
  {
  case 0:break;                             // Vector 0 - no interrupt
  case 2:                                   // Vector 2 - RXIFG
    LED_PORT_OUT ^= LED_2;
    while (!(UCA0IFG&UCTXIFG));             // USCI_A0 TX buffer ready?
    UCA0TXBUF = UCA0RXBUF;                  // TX -> RXed character
    break;
  case 4:break;                             // Vector 4 - TXIFG
  default: break;
  }
}