MSP430F5438A

Hello

I am working on MSP430F5438A and stuck with certain troubles in the programing code of the UART interfacing. Can someone please provide a programing code for the same.

The below given is the program i m trying to crack (looping back). The crystal i are using here is of 8 MHz. What are the changes need to be made for the crystal and the ports. (port we used are P5.6 and P5.7)

#include "msp430x54xA.h"

void main(void)
{
  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT

  P5SEL = 0xC0;                             // P5.6,7 = USCI_A1 TXD/RXD
  UCA1CTL1 |= UCSWRST;                      // **Put state machine in reset**
  UCA1CTL1 |= UCSSEL_2;                     // SMCLK
  UCA1BR0 = 9;                              // 1MHz 115200 (see User's Guide)
  UCA1BR1 = 0;                              // 1MHz 115200
  UCA1MCTL |= UCBRS_1 + UCBRF_0;            // Modulation UCBRSx=1, UCBRFx=0
  UCA1CTL1 &= ~UCSWRST;                     // **Initialize USCI state machine**
  UCA1IE |= UCRXIE;                         // Enable USCI_A1 RX interrupt

  __bis_SR_register(LPM0_bits + GIE);       // Enter LPM0, interrupts enabled
  __no_operation();                         // For debugger
}

// Echo back RXed character, confirm TX buffer is ready first
#pragma vector=USCI_A1_VECTOR
__interrupt void USCI_A1_ISR(void)
{
  switch(__even_in_range(UCA1IV,4))
  {
  case 0:break;                             // Vector 0 - no interrupt
  case 2:                                   // Vector 2 - RXIFG
    while (!(UCA1IFG&UCTXIFG));             // USCI_A1 TX buffer ready?
    UCA1TXBUF = UCA1RXBUF;                  // TX -> RXed character
    break;
  case 4:break;                             // Vector 4 - TXIFG
  default: break;
  }
}