Get oxygen sensor data through UART for the msp430fr5739

ox_sensor.c

#include <stdlib.h>
#include <string.h>
#include "msp430.h"
 
unsigned int CV = 0;
unsigned int DV = 0;
char RO = '0';
const double CRITICAL_OXYGEN_LEVEL = 1.5;
volatile double oxygenThreshold = 2;
volatile double oxygen = 15; // assign a value greater than 2
volatile short belowTwo = 0;
char oxygenData[6];
char AO = 'N';
 
void setClock(void){
  CSCTL0_H = 0xA5;                            // Set password
  CSCTL1 |= DCOFSEL0 + DCOFSEL1;             // Set max. DCO setting
  CSCTL2 = SELA_0 + SELS_3 + SELM_3;        // set ACLK = XT1; MCLK = DCO
  CSCTL3 = DIVA_5 + DIVS_3 + DIVM_0;        // set all dividers
}
 
void setTimer(void) {
  // TODO: Correct the interval by using the needed divisors.
  TA0CCTL0 = CCIE;                          // TACCR0 interrupt enabled
  TA0CCR0 = 0xFFFF;
  TA0CTL = TASSEL_1 + MC_3;                 // SMCLK, UP mode
}
 
void setUart(void){
 
  // Configure UART pins
  P2SEL1 |= BIT0 + BIT1;
  P2SEL0 &= ~(BIT0 + BIT1);
  // Configure UART 0
  UCA0CTL1 |= UCSWRST;
  UCA0CTL1 = UCSSEL_2;                      // Set ACLK = 32768 as UCBRCLK
  UCA0BR0 = 1;                              // 9600 baud
  UCA0BR1 = 0;
  UCA0MCTLW |= 0x00A1;                      // 32768/9600 - INT(32768/9600)=0.41
                                            // UCBRSx value = 0x53 (See UG)
  UCA0CTL1 &= ~UCSWRST;                     // release from reset
  UCA0IE |= UCRXIE;                         // Enable RX interrupt
}
 
void setPorts(void) {
  P1DIR |= BIT3 + BIT4 + BIT6;
  P1OUT &= ~(BIT3 + BIT4 + BIT6);
}
 
void setStandbyMode(void) {
  char command[] = "E\r";
 
  // Send command.
  for(int i=0; i < 2; i++) {
    while (!(UCA0IFG&UCTXIFG));
    UCA0TXBUF = command[i];
  }
}
 
void sendReadCommand(void) {
  char readCommand[] = "R\r";
 
  // Send read command.
  for(int i=0; i < 2; i++) {
    while (!(UCA0IFG&UCTXIFG));
    UCA0TXBUF = readCommand[i];
  }
}
 
// check oxygen levels and set specific ports.
void checkOxygen(double oxygen){
  if(oxygen < oxygenThreshold || (belowTwo == 1 && oxygen < 6) ) {
    if(oxygen < CRITICAL_OXYGEN_LEVEL) {
      AO = '0';
    }
    belowTwo = 1;
    RO = '1';
    P1OUT |= (BIT3 + BIT4 + BIT6);
  } else {
    AO = 'N';
    belowTwo = 0;
    RO = '0';
    P1OUT &= ~(BIT3 + BIT4 + BIT6);
  }
}
 
// Get the oxygen data from receive buffer XX.XX<CR>
double getOxygen() {
 
  oxygenData[0] = UCA0RXBUF; // get first byte
  for(int i = 1; i < 5; i++) { // get the remaining 4 bytes
    while (!(UCA0IFG&UCRXIFG));
    oxygenData[i] = UCA0RXBUF;
  }
  oxygenData[5] = '\0';
 
  return atof(oxygenData);
}
 
 
int main(void){
  WDTCTL = WDTPW + WDTHOLD;                 // stop watchdog
 
  setPorts();
  setClock();
  setUart();
  setStandbyMode();
  setTimer();
 
  __bis_SR_register(LPM0_bits + GIE);
//  while(1) {
//  __delay_cycles(50000000);
//  sendReadCommand();
//  }
  while(1){}
 
}
 
#pragma vector = USCI_A0_VECTOR             // USCI ISR
__interrupt void USCI_A0_ISR(void){
 oxygen = getOxygen();
 checkOxygen(oxygen);
}
 
// Timer A0 interrupt service routine
#pragma vector = TIMER0_A0_VECTOR
__interrupt void Timer_A (void)
{
  sendReadCommand();
}

will this UART configurations work for 9600 bound rate UART device, to get a string to RX buffer from the a UART device?im working on a GPS project so i need to get NMEA strings to RX buffer .