SimpleLink MSP432 - eUSCI - UART Mode

/* Program information:
 * UART connection    : UART2 -> P3.2 (RXD) and P3.3 (TXD)
 * UART system clock  : 3 MHz
 * UART Baud rate     : 115200
 * UART oversampling  : Enabled
 * BRCLK source       : SMCLK
 * UART specification : 1 stop bit, No parity, 8-bit data
 *
*/

#include "msp.h"
#include <stdint.h>

void UART2_init(void);

int main(void) {
UART2_init();
...
}

void UART2_init(void)
{
    EUSCI_A2->CTLW0 |= 1;       // UCSWRST = 1, UART on reset mode

    EUSCI_A2->BRW = 26;         // 3,000,000/115200 = 26 (N = Required division factor)
    EUSCI_A2->MCTLW = 1;        // Because N > 16 so UCOS16 = 1 / Enable oversampling
    EUSCI_A2->CTLW0 = 0x0081;   // 1 stop bit, no parity, SMCLK, 8-bit data

    P3->SEL0 |= 0x0C;           // Configure P3.2(RXD) and P3.3(TXD) as UART port
    P3->SEL1 &= ~0x0C;

    EUSCI_A2->CTLW0 &= ~1;      // UCSWRST = 0, UART out of reset mode
}